1
|
Tricou V, Yu D, Reynales H, Biswal S, Saez-Llorens X, Sirivichayakul C, Lopez P, Borja-Tabora C, Bravo L, Kosalaraksa P, Vargas LM, Alera MT, Rivera L, Watanaveeradej V, Dietze R, Fernando L, Wickramasinghe VP, Moreira ED, Fernando AD, Gunasekera D, Luz K, Oliveira AL, Tuboi S, Escudero I, Hutagalung Y, Lloyd E, Rauscher M, Zent O, Folschweiller N, LeFevre I, Espinoza F, Wallace D. Long-term efficacy and safety of a tetravalent dengue vaccine (TAK-003): 4·5-year results from a phase 3, randomised, double-blind, placebo-controlled trial. Lancet Glob Health 2024; 12:e257-e270. [PMID: 38245116 DOI: 10.1016/s2214-109x(23)00522-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 09/01/2023] [Accepted: 11/01/2023] [Indexed: 01/22/2024]
Abstract
BACKGROUND About half of the world's population lives in dengue-endemic areas. We aimed to evaluate the long-term efficacy and safety of two doses of the tetravalent dengue vaccine TAK-003 in preventing symptomatic dengue disease of any severity and due to any dengue virus (DENV) serotypes in children and adolescents. METHODS In this ongoing double-blind, randomised, placebo-controlled trial, we enrolled healthy participants aged 4-16 years at 26 medical and research centres across eight dengue-endemic countries (Brazil, Colombia, Dominican Republic, Nicaragua, Panama, Philippines, Sri Lanka, and Thailand). The main exclusion criteria were febrile illness (body temperature ≥38°C) at the time of randomisation, hypersensitivity or allergy to any of the vaccine components, pregnancy or breastfeeding, serious chronic or progressive disease, impaired or altered immune function, and previous receipt of a dengue vaccine. Participants were randomly assigned 2:1 (stratified by age and region) using an interactive web response system and dynamic block assignment to receive two subcutaneous doses of TAK-003 or placebo 3 months apart. Investigators, participants, and their parents or legal guardians were blinded to group assignments. Active febrile illness surveillance and RT-PCR testing of febrile illness episodes were performed for identification of virologically confirmed dengue. Efficacy outcomes were assessed in the safety analysis set (all randomly assigned participants who received ≥1 dose) and the per protocol set (all participants who had no major protocol violations), and included cumulative vaccine efficacy from first vaccination to approximately 4·5 years after the second vaccination. Serious adverse events were monitored throughout. This study is registered with ClinicalTrials.gov, NCT02747927. FINDINGS Between Sept 7, 2016, and March 31, 2017, 20 099 participants were randomly assigned (TAK-003, n=13 401; placebo, n=6698). 20 071 participants (10 142 [50·5%] males; 9929 [49·5%] females; safety set) received TAK-003 or placebo, with 18 257 (91·0%) completing approximately 4·5 years of follow-up after the second vaccination (TAK-003, 12 177/13 380; placebo, 6080/6687). Overall, 1007 (placebo: 560; TAK-003: 447) of 27 684 febrile illnesses reported were virologically confirmed dengue, with 188 cases (placebo: 142; TAK-003: 46) requiring hospitalisation. Cumulative vaccine efficacy was 61·2% (95% CI 56·0-65·8) against virologically confirmed dengue and 84·1% (77·8-88·6) against hospitalised virologically confirmed dengue; corresponding efficacies were 53·5% (41·6-62·9) and 79·3% (63·5-88·2) in baseline seronegative participants (safety set). In an exploratory analysis, vaccine efficacy was shown against all four serotypes in baseline seropositive participants. In baseline seronegative participants, vaccine efficacy was shown against DENV-1 and DENV-2 but was not observed against DENV-3 and low incidence precluded evaluation against DENV-4. During part 3 of the trial (approximately 22-57 months after the first vaccination), serious adverse events were reported for 664 (5·0%) of 13 380 TAK-003 recipients and 396 (5·9%) of 6687 placebo recipients; 17 deaths (6 in the placebo group and 11 in the TAK-003 group) were reported, none were considered study-vaccine related. INTERPRETATION TAK-003 demonstrated long-term efficacy and safety against all four DENV serotypes in previously exposed individuals and against DENV-1 and DENV-2 in dengue-naive individuals. FUNDING Takeda Vaccines. TRANSLATIONS For the Portuguese, Spanish translations and plain language summary of the abstract see Supplementary Materials section.
Collapse
Affiliation(s)
- Vianney Tricou
- Takeda Pharmaceuticals International, Zurich, Switzerland.
| | - Delia Yu
- Pediatrics, De La Salle Medical and Health Sciences Institute, Dasmariñas, Philippines
| | - Humberto Reynales
- Clinical Research, Centro de Atención e Investigación Médica, CAIMED, Bogotá, Colombia
| | | | - Xavier Saez-Llorens
- Pediatric Infectious Diseases, Hospital del Niño Dr. José Renán Esquivel, Sistema Nacional de Investigación at SENACYT, Centro de Vacunación Internacional (Cevaxin), Panama City, Panama
| | - Chukiat Sirivichayakul
- Department of Tropical Pediatrics, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Pio Lopez
- Centro de Estudios en Infectología Pediátrica, Universidad del Valle and Centro Medico Imbanaco, Cali, Colombia
| | - Charissa Borja-Tabora
- Clinical Research Division, Research Institute For Tropical Medicine, Muntinlupa, Philippines
| | - Lulu Bravo
- Pediatrics, University of the Philippines Manila, Ermita, Philippines
| | - Pope Kosalaraksa
- Department of Pediatrics, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | | | - Maria Theresa Alera
- Virology, Philippines-Armed Forces Research Institute of Medical Sciences Virology Research Unit, Cebu City, Philippines
| | - Luis Rivera
- Hospital Maternidad Nuestra Senora de Altagracia, Santo Domingo, Dominican Republic
| | - Veerachai Watanaveeradej
- Department of Pediatrics, Phramongkutklao Hospital and Faculty of Medicine, Kasetsart University, Bangkok, Thailand
| | - Reynaldo Dietze
- Núcleo de Doenças Infecciosas, Centro de Ciencias da Saude-UFES, Vitória, Brazil
| | - LakKumar Fernando
- Centre for Clinical Management of Dengue & Dengue Haemorrhagic Fever, Negombo General Hospital, Negombo, Sri Lanka
| | | | - Edson Duarte Moreira
- Laboratory of Molecular Epidemiology and Biostatistics, Associação Obras Sociais Irmã Dulce Hospital Santo Antônio and Oswaldo Cruz Foundation, Bahia, Brazil
| | | | - Dulanie Gunasekera
- Faculty of Medical Sciences, University of Sri Jayawardenenpura, Nugegoda, Sri Lanka
| | - Kleber Luz
- Instituto de Medicina Tropical da Universidade Federal do Rio Grande do Norte, Natal, Brazil
| | - Ana Lucia Oliveira
- Department of Infectious Diseases, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brazil
| | | | | | | | | | | | - Olaf Zent
- Takeda Pharmaceuticals International, Zurich, Switzerland
| | | | - Inge LeFevre
- Takeda Pharmaceuticals International, Zurich, Switzerland; Regulatory Affairs, GlaxoSmithKline, Zug, Switzerland
| | - Felix Espinoza
- National Autonomous University of Nicaragua, León, Nicaragua
| | | |
Collapse
|
2
|
Megat Nabil Mohsin S, Ahmad N, Yusof YA. Comparative efficacy trials with alcohol added d-phenothrin formulations against Aedes aegypti under open-field condition. PEST MANAGEMENT SCIENCE 2023; 79:4094-4099. [PMID: 37300851 DOI: 10.1002/ps.7610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 06/08/2023] [Accepted: 06/10/2023] [Indexed: 06/12/2023]
Abstract
BACKGROUND Evaporation inhibition of water-based space spray insecticides is necessary to prevent the drifting away of fog droplets and the release of insecticidal actives and to prolong suspension time. To address this problem, hygroscopic alcohols, namely propylene glycol and glycerol, were included as adjuvants in water-based d-phenothrin formulations. The performances of glycerol-added formulation (D1) and propylene glycol-added formulation (D2) in terms of droplet size and efficacy against larvae, pupae and adult Aedes aegypti in an open-field environment were examined and compared to the performance of a formulation without adjuvant (negative control). RESULTS No significant difference in droplet size was observed between the formulations and fogging methods. The efficacy of cold fogs was significantly higher than thermal fogs for all formulations. D2 was found to be most effective against adult Ae. aegypti, followed by D1 and the negative control. D1 and D2 provided complete knockdown and mortality in adult Ae. aegypti at 10 and 25 m for cold and thermal fogging, respectively. However, all d-phenothrin formulations possessed minimal efficacy on immature Ae. aegypti. CONCLUSION The incorporation of non-toxic alcohols as adjuvants in water-based space spray insecticides increased efficacy against adult Ae. aegypti, a major vector for dengue. Propylene glycol was discovered to induce higher adulticidal efficacy than glycerol. © 2023 Society of Chemical Industry.
Collapse
Affiliation(s)
| | - Norashikin Ahmad
- Advanced Oleochemical Technology Division (AOTD), Malaysian Palm Oil Board (MPOB), Kajang, Malaysia
| | - Yusrabbil Amiyati Yusof
- Advanced Oleochemical Technology Division (AOTD), Malaysian Palm Oil Board (MPOB), Kajang, Malaysia
| |
Collapse
|
3
|
Carbajo AE, Cardo MV, Pesce M, Iummato LE, Bárcena Barbeira P, Santini MS, Utgés ME. Age and socio-economic status affect dengue and COVID-19 incidence: spatio-temporal analysis of the 2020 syndemic in Buenos Aires City. PeerJ 2023; 11:e14735. [PMID: 37753173 PMCID: PMC10519196 DOI: 10.7717/peerj.14735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Accepted: 12/21/2022] [Indexed: 09/28/2023] Open
Abstract
In early 2020, Argentina experienced the worst dengue outbreak in its history, concomitant with first-to-date increasing COVID-19 cases. Dengue epidemics in temperate Argentina have already been described as spatially heterogeneous; in the previous 2016 outbreak, transmission occurred 7.3 times more frequently in slums compared to the rest of Buenos Aires City (CABA). These informal settlements have deficient sanitary conditions, precarious housing and high incidence of social vulnerabilities. The purpose of this work was to study the spatio-temporal patterns of the 2020 dengue epidemic in CABA in relation to socio-economic living conditions of its inhabitants and its interaction with the onset of COVID-19. The study considered the period between Jan 1st and May 30th 2020. Dengue and COVID-19 databases were obtained from the National Health Surveillance System; each record was anonymized and geo-localized. The city was divided according to census tracts and grouped in four socio-economic strata: slums, high, mid and low residential. An aligned-rank transform ANOVA was performed to test for differences in the incidence of dengue and COVID-19, and age at death due to COVID-19, among socio-economic strata, four age categories and their interaction. The incidence by cluster was calculated with a distance matrix up to 600 m from the centroid. Spatial joint dengue and COVID-19 risk was estimated by multiplying the nominal risk for each disease, defined from 1 (low) to 5 (high) according to their quantiles. During the study period, 7,175 dengue cases were registered in CABA (incidence rate 23.3 cases per 10,000 inh), 29.2% of which occurred in slums. During the same period, 8,809 cases of COVID-19 were registered (28.6 cases per 10,000 inh); over half (51.4%) occurred in slums, where the median age of cases (29 years old) was lower than in residential areas (42 years old). The mean age of the deceased was 58 years old in slums compared to 79 years old outside. The percentage of deaths in patients under 60 years old was 56% in slums compared to 8% in the rest of the city. The incidence of both diseases was higher in slums than in residential areas for most age categories. Spatial patterns were heterogeneous: dengue presented higher incidence values in the southern sector of the city and the west, and low values in highly urbanized quarters, whereas COVID-19 presented higher values in the east, south, high populated areas and slums. The lowest joint risk clusters were located mainly in high residential areas, whereas high joint risk was observed mainly in the south, some western clusters, the historical part of the city and center north. The social epidemiological perspective of dengue and COVID-19 differed, given that socio environmental heterogeneity influenced the burden of both viruses in a different manner. Despite the overwhelming effect of the COVID-19 pandemic, health care towards other diseases, especially in territories with pre-existing vulnerabilities, should not be unattended.
Collapse
Affiliation(s)
- Aníbal E. Carbajo
- Instituto de Investigación e Ingeniería Ambiental (IIIA), Escuela de Hábitat y Sostenibilidad, Universidad Nacional de San Martín (UNSAM), San Martín, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - María V. Cardo
- Instituto de Investigación e Ingeniería Ambiental (IIIA), Escuela de Hábitat y Sostenibilidad, Universidad Nacional de San Martín (UNSAM), San Martín, Buenos Aires, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
| | - Martina Pesce
- Dirección Nacional de Epidemiología e Información Estratégica, Ministerio de Salud de la Nación, Buenos Aires, Argentina
| | - Luciana E. Iummato
- Dirección Nacional de Epidemiología e Información Estratégica, Ministerio de Salud de la Nación, Buenos Aires, Argentina
| | - Pilar Bárcena Barbeira
- Dirección Nacional de Epidemiología e Información Estratégica, Ministerio de Salud de la Nación, Buenos Aires, Argentina
| | - María Soledad Santini
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Buenos Aires, Argentina
- Instituto Nacional de Parasitología (INP), ANLIS “Dr. C. G. Malbrán”, Ministerio de Salud de la Nación, Buenos Aires, Argentina
| | - María Eugenia Utgés
- Centro Nacional de Diagnóstico e Investigación en Endemo-epidemias (CeNDIE), ANLIS “Dr. C.G. Malbrán”, Ministerio de Salud de la Nación, Buenos Aires, Argentina
| |
Collapse
|
4
|
Garcia--Van Smévoorde M, Piorkowski G, Emboulé L, Dos Santos G, Loraux C, Guyomard-Rabenirina S, Joannes MO, Fagour L, Najioullah F, Cabié A, de Lamballerie X, Vega-Rúa A, Césaire R, Calvez E. Phylogenetic Investigations of Dengue 2019-2021 Outbreak in Guadeloupe and Martinique Caribbean Islands. Pathogens 2023; 12:1182. [PMID: 37764990 PMCID: PMC10534936 DOI: 10.3390/pathogens12091182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/14/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023] Open
Abstract
Dengue fever has been a public health problem in the Caribbean region since 1981, when it first reappeared in Cuba. In 1989, it was reported in Martinique and Guadeloupe (two French islands 200 km apart); since then, DENV has caused several epidemics locally. In 2019-2021, DENV-1, DENV-2, and DENV-3 were detected. Serotype distribution was differentiated, with DENV-2 and DENV-3 predominating in Guadeloupe and Martinique, respectively. Complete genome sequencing was carried out on 32 specimens, and phylogenic analysis identified the circulation of genotype V for DENV-1, cosmopolitan genotype for DENV-2, and genotype III for DENV-3. However, two distinct circulating groups were identified for DENV-1 and DENV-3, suggesting independent introductions. Overall, despite the context of the COVID-19 pandemic and the associated travel restrictions, these results confirm the active circulation of DENV and specific epidemiological features on each of the two islands. Such differences may be linked to the founder effect of the various introduction events, and to local factors such as the population immunity and the transmission capacity of the vectors. Further genomic and epidemiological characterization of DENV strains remains essential to understand how dengue spreads in each specific geographical context and to prevent future epidemics.
Collapse
Affiliation(s)
- Margot Garcia--Van Smévoorde
- Vector Control Research Laboratory, Transmission Reservoir and Pathogens Diversity Unit, Institut Pasteur de la Guadeloupe, Les Abymes 97139, Guadeloupe;
| | - Géraldine Piorkowski
- Unité des Virus Emergents (UVE), Aix-Marseille Univ-IRD 190-Inserm 1207, 13005 Marseille, France; (G.P.); (X.d.L.)
- National Reference Center for Arboviruses, National Institute of Health and Medical Research (Inserm), 13005 Marseille, France
- French Armed Forces Biomedical Research Institute (IRBA), 91220 Brétigny-sur-Orge, France
| | - Loic Emboulé
- Molecular Genetics and Inherited Red Blood Cell Diseases Laboratory, University Hospitals of Guadeloupe, Pointe-à-Pitre 97159, Guadeloupe;
| | - Georges Dos Santos
- Department of Virology, University Hospitals of Martinique, Fort-de-France, 97200 Martinique, France; (G.D.S.); (L.F.)
- Pathogenesis and Controle of Chronic and Emerging Infections, French National Blood Service (EFS), National Institute of Health and Medical Research (Inserm), University of Montpellier, 34000 Montpellier, France; (A.C.); (R.C.)
- University of Antilles, Pointe-à-Pitre 97110, Guadeloupe
| | - Cécile Loraux
- Department of Virology, University Hospitals of Guadeloupe, Pointe-à-Pitre 97159, Guadeloupe;
| | - Stéphanie Guyomard-Rabenirina
- Microbial Ecosystems Interaction Laboratory, Transmission Reservoir and Pathogens Diversity Unit, Institut Pasteur de la Guadeloupe, Les Abymes 97139, Guadeloupe;
| | - Marie-Odile Joannes
- Department of Hematology Immunology Histocompatibility, University Hospitals of Guadeloupe, Pointe-à-Pitre 97159, Guadeloupe;
| | - Laurence Fagour
- Department of Virology, University Hospitals of Martinique, Fort-de-France, 97200 Martinique, France; (G.D.S.); (L.F.)
| | - Fatiha Najioullah
- Department of Clinical Research and Innovation, University Hospitals of Martinique, Fort-de-France, 97200 Martinique, France;
| | - André Cabié
- Pathogenesis and Controle of Chronic and Emerging Infections, French National Blood Service (EFS), National Institute of Health and Medical Research (Inserm), University of Montpellier, 34000 Montpellier, France; (A.C.); (R.C.)
- University of Antilles, Pointe-à-Pitre 97110, Guadeloupe
- Department of Infectious and Tropical Diseases, University Hospitals of Martinique, Fort-de-France, 97200 Martinique, France
| | - Xavier de Lamballerie
- Unité des Virus Emergents (UVE), Aix-Marseille Univ-IRD 190-Inserm 1207, 13005 Marseille, France; (G.P.); (X.d.L.)
- National Reference Center for Arboviruses, National Institute of Health and Medical Research (Inserm), 13005 Marseille, France
| | - Anubis Vega-Rúa
- Vector Control Research Laboratory, Transmission Reservoir and Pathogens Diversity Unit, Institut Pasteur de la Guadeloupe, Les Abymes 97139, Guadeloupe;
| | - Raymond Césaire
- Pathogenesis and Controle of Chronic and Emerging Infections, French National Blood Service (EFS), National Institute of Health and Medical Research (Inserm), University of Montpellier, 34000 Montpellier, France; (A.C.); (R.C.)
- University of Antilles, Pointe-à-Pitre 97110, Guadeloupe
- Department of Virology, University Hospitals of Guadeloupe, Pointe-à-Pitre 97159, Guadeloupe;
| | - Elodie Calvez
- Vector Control Research Laboratory, Transmission Reservoir and Pathogens Diversity Unit, Institut Pasteur de la Guadeloupe, Les Abymes 97139, Guadeloupe;
| |
Collapse
|
5
|
Lugo-Radillo A, Mendoza-Cano O, Trujillo X, Huerta M, Ríos-Silva M, Guzmán-Esquivel J, Benites-Godínez V, Bricio-Barrios JA, Ríos-Bracamontes EF, Cárdenas-Rojas MI, Cárdenas Y, Murillo-Zamora E. Assessing the Burden of Dengue during the COVID-19 Pandemic in Mexico. Trop Med Infect Dis 2023; 8:tropicalmed8040232. [PMID: 37104357 PMCID: PMC10140831 DOI: 10.3390/tropicalmed8040232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/14/2023] [Accepted: 04/17/2023] [Indexed: 04/28/2023] Open
Abstract
The transmission of the dengue virus in Mexico has historically been high, and its burden during the COVID-19 pandemic is currently not well understood. Our objective was to assess the burden of dengue-related disability-adjusted life years (DALYs) between 2020 and 2022. We conducted a cross-sectional analysis of databases resulting from an epidemiological surveillance of vector-borne diseases and computed DALYs using the protocol of the Global Burden of Disease (GBD) study 2019. Our results showed that there were 218,807 incident cases of dengue during the study period, resulting in 951 deaths. The calculated DALYs (and their 95% confidence intervals) were 8121 (7897-8396), 4733 (4661-4820), and 8461 (8344-8605) in 2020, 2021, and 2022, respectively. The DALY rates (per 100,000) were 6.5 (6.3-6.6), 3.8 (3.7-3.9), and 6.7 (6.6-6.8), respectively. The rates for 2020 and 2022 were similar to the historical mean (6.4, p = 0.884), whereas the rate for 2021 was lower than the mean. Premature mortality (years of life lost, YLL) contributed to 91% of the total burden. Our findings suggest that dengue fever remained a significant cause of disease burden during the COVID-19 pandemic, especially in terms of premature mortality.
Collapse
Affiliation(s)
- Agustin Lugo-Radillo
- CONACyT-Facultad de Medicina y Cirugía, Universidad Autónoma Benito Juárez de Oaxaca, Ex Hacienda Aguilera S/N, Carr. a San Felipe del Agua, Oaxaca 68020, Mexico
| | - Oliver Mendoza-Cano
- Facultad de Ingeniería Civil, Universidad de Colima, km. 9 Carretera Colima-Coquimatlán, Coquimatlán 28400, Mexico
| | - Xóchitl Trujillo
- Centro Universitario de Investigaciones Biomédicas, Universidad de Colima, Av. 25 de Julio 965, Col. Villas San Sebastián, Colima 28045, Mexico
| | - Miguel Huerta
- Centro Universitario de Investigaciones Biomédicas, Universidad de Colima, Av. 25 de Julio 965, Col. Villas San Sebastián, Colima 28045, Mexico
| | - Mónica Ríos-Silva
- Centro Universitario de Investigaciones Biomédicas, CONACyT-Universidad de Colima, Av. 25 de Julio 965, Col. Villas San Sebastián, Colima 28045, Mexico
| | - José Guzmán-Esquivel
- Unidad de Investigación en Epidemiología Clínica, Instituto Mexicano del Seguro Social, Av. Lapislázuli 250, Col. El Haya, Villa de Álvarez 28984, Mexico
| | - Verónica Benites-Godínez
- Coordinación de Educación en Salud, Instituto Mexicano del Seguro Social, Calzada del Ejercito Nacional 14, Col. Fray Junípero Serra, Tepic 63160, Mexico
- Unidad Académica de Medicina, Universidad Autónoma de Nayarit, Ciudad de la Cultura "Amado Nervo", Tepic 63155, Mexico
| | | | - Eder Fernando Ríos-Bracamontes
- Departamento de Medicina Interna, Hospital General de Zona No. 1, Instituto Mexicano del Seguro Social, Av. Lapislázuli 250, Col. El Haya, Villa de Álvarez 28984, Mexico
| | - Martha I Cárdenas-Rojas
- Unidad de Investigación en Epidemiología Clínica, Instituto Mexicano del Seguro Social, Av. Lapislázuli 250, Col. El Haya, Villa de Álvarez 28984, Mexico
| | - Yolitzy Cárdenas
- Centro Universitario de Investigaciones Biomédicas, Universidad de Colima, Av. 25 de Julio 965, Col. Villas San Sebastián, Colima 28045, Mexico
| | - Efrén Murillo-Zamora
- Unidad de Investigación en Epidemiología Clínica, Instituto Mexicano del Seguro Social, Av. Lapislázuli 250, Col. El Haya, Villa de Álvarez 28984, Mexico
| |
Collapse
|
6
|
Rojo-Ospina RA, Quimbayo-Forero M, Calle-Tobón A, Bedoya-Patiño SC, Gómez M, Ramírez A, Sánchez J, Silva-Alzate JF, Montes-Zuluaga CJ, Cadavid JM, Henao-Correa EA. Integrated vector management program in the framework of the COVID-19 pandemic in Medellin, Colombia. BIOMEDICA : REVISTA DEL INSTITUTO NACIONAL DE SALUD 2023; 43:131-144. [PMID: 37167464 PMCID: PMC10495193 DOI: 10.7705/biomedica.6679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 03/08/2023] [Indexed: 05/13/2023]
Abstract
Introduction: The COVID-19 pandemic pressured health care systems to remain alert and active in their vector-borne disease control and prevention programs, leading to changes in vector control strategies in urban areas affected by dengue, Zika and chikungunya. Objective: To describe the adaptations made to the vector control and surveillance program in Medellín during the COVID-19 health emergency. Materials and methods: Once the health emergency started, biosecurity protocols were developed. Entomological surveillance was strengthened from the institutional environment instead of homes. Data was collected in Medellín from 2018 to 2021 during the vector control and surveillance program activities, which included epidemiological and entomovirological surveillance, entomological index survey, ovitrap monitoring, community mobilization, search and elimination of mosquito breading sites, and chemical control. These actions were adapted and/or increased to promote self-care among communities in total and partial confinement, and to develop prevention and control measures. Results: Mosquito monitoring was increased by 40% using ovitraps, entomological virological surveillance showed an increase in 2020 of 34,4% compared to 2019 and virtual media was used to keep and improve contact with the community. Conclusion: The COVID-19 pandemic had a significant impact on arbovirus prevention and control programs. The city of Medellín quickly adapted its entomo-virological surveillance activities, control measures, and the contact with the community during the pandemic, which allow the Integrated Vector Management program to remain active in the city.
Collapse
Affiliation(s)
- Raúl A Rojo-Ospina
- Programa de Control de Vectores, Secretaría de Salud, Alcaldía de Medellín, Medellín, Colombia.
| | - Marcela Quimbayo-Forero
- Programa de Control de Vectores, Secretaría de Salud, Alcaldía de Medellín, Medellín, Colombia; Grupo Entomología Médica, Universidad de Antioquia, Medellín, Colombia.
| | - Arley Calle-Tobón
- Programa de Control de Vectores, Secretaría de Salud, Alcaldía de Medellín, Medellín, Colombia; Grupo Entomología Médica, Universidad de Antioquia, Medellín, Colombia.
| | - Sindy C Bedoya-Patiño
- Programa de Control de Vectores, Secretaría de Salud, Alcaldía de Medellín, Medellín, Colombia.Programa de Control de Vectores, Secretaría de Salud, Alcaldía de Medellín, Medellín, Colombia.
| | - Maribel Gómez
- Programa de Control de Vectores, Secretaría de Salud, Alcaldía de Medellín, Medellín, Colombia.
| | - Astrid Ramírez
- Programa de Control de Vectores, Secretaría de Salud, Alcaldía de Medellín, Medellín, Colombia.
| | - Johnny Sánchez
- Programa de Control de Vectores, Secretaría de Salud, Alcaldía de Medellín, Medellín, Colombia.
| | - Juan F Silva-Alzate
- Programa de Control de Vectores, Secretaría de Salud, Alcaldía de Medellín, Medellín, Colombia.
| | - Carlos J Montes-Zuluaga
- Programa de Control de Vectores, Secretaría de Salud, Alcaldía de Medellín, Medellín, Colombia.
| | - Jorge M Cadavid
- Programa de Control de Vectores, Secretaría de Salud, Alcaldía de Medellín, Medellín, Colombia; Grupo Entomología Médica, Universidad de Antioquia, Medellín, Colombia.
| | - Enrique A Henao-Correa
- Programa de Control de Vectores, Secretaría de Salud, Alcaldía de Medellín, Medellín, Colombia.Programa de Control de Vectores, Secretaría de Salud, Alcaldía de Medellín, Medellín, Colombia.
| |
Collapse
|
7
|
Tangsathapornpong A, Thisyakorn U. Dengue amid COVID-19 pandemic. PLOS GLOBAL PUBLIC HEALTH 2023; 3:e0001558. [PMID: 36962879 PMCID: PMC10021186 DOI: 10.1371/journal.pgph.0001558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 01/12/2023] [Indexed: 02/09/2023]
Abstract
The increasing in dengue cases nowadays is a global threat concern. Fifty per cent of the world's population is vulnerable to dengue infection with Asia contributing over two-thirds of the global burden. The double trouble of Coronavirus disease 2019 (COVID-19) arising from novel severe respiratory syndrome coronavirus (SARS-CoV-2) and dengue virus is a major challenge, particularly in developing countries due to overburdened public health systems and economic constraints including the ability to diagnose. The objective of this study was to analyze the prevalence of dengue in Thailand during the outbreak of COVID-19. We studied data on dengue cases reported at epidemiological information centers, the Bureau of Epidemiology, and the Ministry of Public Health, Thailand during 2019 to 2021. Patients can be observed across all age groups, particularly adolescents and adults. Dengue was seen year-round, with highest incidence in the rainy seasons between June and September. Total number of cases was markedly declined by nearly 93 percentage from 2019 to 2011. Taken together, Thailand is still at risk of spreading of dengue in the midst of COVID-19 pandemic. Continuous status updates on dengue patients in Thailand should be incorporated into global health advisory on preventive measures before travelling.
Collapse
Affiliation(s)
- Auchara Tangsathapornpong
- Division of Pediatric Infectious Disease, Department of Pediatrics, Faculty of Medicine, Thammasat University, Pathumthani, Thailand
| | - Usa Thisyakorn
- Tropical Medicine Cluster, Chulalongkorn University, Bangkok, Thailand
| |
Collapse
|
8
|
Ahmad Zaki R, Xin NZ. Dengue Trend During COVID-19 Pandemic in Malaysia. Asia Pac J Public Health 2023; 35:62-64. [PMID: 36341513 PMCID: PMC9637901 DOI: 10.1177/10105395221134655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Rafdzah Ahmad Zaki
- Centre for Epidemiology and
Evidence-based Practice, Department of Social and Preventive Medicine, Faculty of
Medicine, University of Malaya, Kuala Lumpur, Malaysia,Department of Public Health, University
Malaya Medical Centre, Kuala Lumpur, Malaysia,Rafdzah Ahmad Zaki, Centre for Epidemiology
and Evidence-based Practice, Department of Social and Preventive Medicine,
Faculty of Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia.
| | - Ng Zi Xin
- Centre for Epidemiology and
Evidence-based Practice, Department of Social and Preventive Medicine, Faculty of
Medicine, University of Malaya, Kuala Lumpur, Malaysia
| |
Collapse
|
9
|
Rahmat ZS, Sadiq M, Vohra LI, Ullah H, Essar MY. The impact of COVID-19 followed by extreme flooding on vector borne diseases in Pakistan: A mini narrative review. New Microbes New Infect 2022; 51:101075. [PMID: 36589270 PMCID: PMC9792184 DOI: 10.1016/j.nmni.2022.101075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 12/15/2022] [Accepted: 12/20/2022] [Indexed: 12/28/2022] Open
Abstract
While the Coronavirus pandemic continues to spread havoc across the world, countries like Pakistan are faced with another challenge: the steady rise of vector borne diseases alongside a spike in COVID-19 cases. Moreover, signs and clinical manifestations of multiple arbovirus infections mimic those experienced in COVID-19, causing further complications in management and diagnosis. Without urgent adequate management and testing equipment, the recent surge of COVID-19 along with the steady rise in Vector Borne Diseases (VBDs) could collapse the exhausted Pakistani healthcare system. This article explores the impact of COVID-19 on the management, diagnosis, and treatment of the common arbovirus infections of Pakistan, including dengue (DENV), malaria, chikungunya (CHIKV), and other foreign infections that are on a hazardous rise.
Collapse
Affiliation(s)
- Zainab Syyeda Rahmat
- Faculty of Medicine, Dow Medical College, Dow University of Health Sciences, Pakistan
| | - Mahnoor Sadiq
- Faculty of Medicine, Dow Medical College, Dow University of Health Sciences, Pakistan
| | | | - Hamid Ullah
- Faculty of Medicine, Dow Medical College, Dow University of Health Sciences, Pakistan
| | | |
Collapse
|
10
|
Manna S, Satapathy P, Bora I, Padhi BK. Dengue outbreaks in South Asia amid Covid-19: Epidemiology, transmission, and mitigation strategies. Front Public Health 2022; 10:1060043. [PMID: 36589966 PMCID: PMC9797821 DOI: 10.3389/fpubh.2022.1060043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Accepted: 11/25/2022] [Indexed: 12/23/2022] Open
Affiliation(s)
- Subhanwita Manna
- Department of Public Health, Indian Institute of Public Health, New Delhi, India
| | - Prakasini Satapathy
- Department of Virology, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Ishani Bora
- Department of Virology, Postgraduate Institute of Medical Education and Research, Chandigarh, India,*Correspondence: Ishani Bora
| | - Bijaya Kumar Padhi
- Department of Community Medicine and School of Public Health, Postgraduate Institute of Medical Education and Research, Chandigarh, India,Bijaya Kumar Padhi
| |
Collapse
|
11
|
Novaes C, Silva Pinto F, Marques RC. Aedes Aegypti-Insights on the Impact of Water Services. GEOHEALTH 2022; 6:e2022GH000653. [PMID: 36439027 PMCID: PMC9682355 DOI: 10.1029/2022gh000653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Revised: 09/08/2022] [Accepted: 11/10/2022] [Indexed: 06/16/2023]
Abstract
Epidemics in general and dengue in particular surcharge the health services and the economy. However, the fighting actions are circumscribed to the health sector despite the known positive economic impacts that the investments in water supply and sanitation services (WSS) may cause on society and public health. Besides the fact that urban WSS infrastructure is closely linked to disease prevention, in Brazil, the user's perception and demand are very few and many institutional aspects, like the integration between local WSS, health, environment, and development of city councils, need to be improved and better aligned. In this way, disease control and vector density reduction remain challenges to be overcome. This article addresses the need for greater institutionalization of urban WSS relating them to health aspects from official data. It concludes that the negative impacts of lacking universal access to WSS on dengue and other mosquito diseases are dispersed in all cities, regions, and populations regardless of their degree of development. Furthermore, contrary to what is normally emphasized, the analysis carried out shows that the lack of urban stormwater management systems may be an important component of WSS in preventing the proliferation of dengue disease.
Collapse
Affiliation(s)
- Carlos Novaes
- CERISInstituto Superior TécnicoUniversity of LisbonLisbonPortugal
| | - Francisco Silva Pinto
- CERISInstituto Superior TécnicoUniversity of LisbonLisbonPortugal
- EIGeSLusofona UniversityLisboaPortugal
| | | |
Collapse
|
12
|
Abstract
Commemorating the 2021 ASEAN Dengue Day and advocacy for World Dengue Day, the International Society for Neglected Tropical Diseases (ISNTD) and Asian Dengue Voice and Action (ADVA) Group jointly hosted the ISNTD-ADVA World Dengue Day Forum–Cross Sector Synergies in June 2021. The forum aimed to achieve international and multisectoral coordination to consolidate global dengue control and prevention efforts, share best practices and resources, and improve global preparedness. The forum featured experts around the world who shared their insight, research experience, and strategies to tackle the growing threat of dengue. Over 2,000 healthcare care professionals, researchers, epidemiologists, and policy makers from 59 countries attended the forum, highlighting the urgency for integrated, multisectoral collaboration between health, environment, education, and policy to continue the march against dengue. Sustained vector control, environmental management, surveillance improved case management, continuous vaccine advocacy and research, capacity building, political commitment, and community engagement are crucial components of dengue control. A coordinated strategy based on science, transparency, timely and credible communication, and understanding of human behavior is needed to overcome vaccine hesitancy, a major health risk further magnified by the COVID-19 pandemic. The forum announced a strong call to action to establish World Dengue Day to improve global awareness, share best practices, and prioritize preparedness in the fight against dengue. The growing threat of dengue poses a significant public health burden endangering the well-being and socioeconomic development of many countries across the world. The International Society for Neglected Tropical Diseases (ISNTD) and Asian Dengue Voice and Action (ADVA) group brought together the collaborative efforts of healthcare care professionals, researchers, epidemiologists, environmentalists, and policy makers to coordinate international dengue control strategy. A strong call to action to establish a World Dengue Day was announced to improve global awareness, share best practices, and prioritize preparedness in the fight against dengue. The World Dengue Day highlighted the need for all governments, healthcare professionals, civil societies, public and private sectors, schools and universities, and citizens in dengue-endemic countries to form a strong coalition to encourage and accelerate a collective dengue control response.
Collapse
Affiliation(s)
- Nattachai Srisawat
- Tropical Medicine Cluster, Chulalongkorn University, Excellence Center for Critical Care Nephrology, King Chulalongkorn Memorial Hospital, and Center of Excellence in Critical Care Nephrology, Chulalongkorn University, Bangkok, Thailand
- * E-mail:
| | - Usa Thisyakorn
- Tropical Medicine Cluster, Chulalongkorn University and Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Zulkifli Ismail
- Department of Pediatrics, KPJ Selangor Specialist Hospital, Selangor, Malaysia
| | - Kamran Rafiq
- International Society for Neglected Tropical Diseases, London, United Kingdom
| | - Duane J. Gubler
- Program in Emerging Infectious Diseases, Duke-NUS Medical School, Singapore
| | | |
Collapse
|
13
|
Codeco CT, Oliveira SS, Ferreira DA, Riback TI, Bastos LS, Lana RM, Almeida IF, Godinho VB, Cruz OG, Coelho FC. Fast expansion of dengue in Brazil. LANCET REGIONAL HEALTH. AMERICAS 2022; 12:100274. [PMID: 36776428 PMCID: PMC9904033 DOI: 10.1016/j.lana.2022.100274] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Affiliation(s)
| | | | | | | | | | - Raquel M. Lana
- Scientific Computing Program, Oswaldo Cruz Foundation, Brazil
- Barcelona Supercomputing Center (BSC), Barcelona, Spain
| | | | | | - Oswaldo G. Cruz
- Scientific Computing Program, Oswaldo Cruz Foundation, Brazil
| | | |
Collapse
|
14
|
Bell L, van Gemert C, Merilles OE, Cash HL, Stoové M, Hellard M. The impact of COVID-19 on public health systems in the Pacific Island Countries and Territories. THE LANCET REGIONAL HEALTH. WESTERN PACIFIC 2022; 25:100498. [PMID: 35785109 PMCID: PMC9230438 DOI: 10.1016/j.lanwpc.2022.100498] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
UNLABELLED The Pacific Island Countries and Territories (PICTs) have experienced the coronavirus disease (COVID-19) pandemic in different ways and with different timelines, with some experiencing large outbreaks leading to high levels of morbidity and mortality with significant strain on health systems, while others have had no local transmission or delayed transmission until after vaccine rollouts started. Regardless of COVID-19 trends, the pandemic has had a large impact on the social, political, and economic landscape in the Pacific, the effects of which are still being understood. However, the pandemic has also put renewed focus and investment into public health systems and provided an opportunity for the PICTs to build on existing systems and recent capacity strengthening to improve public health in the Region. FUNDING Leila Bell was supported by an Australian Government Research Training Program (RTP) Scholarship. Other funding sources had no role in paper design, data collection, data analysis, interpretation, or writing of the paper.
Collapse
Affiliation(s)
- Leila Bell
- Burnet Institute, Melbourne, Australia
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - Caroline van Gemert
- Burnet Institute, Melbourne, Australia
- The University of Melbourne, Melbourne, Australia
- Vanuatu Health Program, Port Vila, Vanuatu
| | | | - Haley L. Cash
- Pacific Island Health Officers Association, Honolulu, HI, USA
| | - Mark Stoové
- Burnet Institute, Melbourne, Australia
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
| | - Margaret Hellard
- Burnet Institute, Melbourne, Australia
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Australia
- Department of Infectious Diseases, Alfred Health, Melbourne, Australia
- Doherty Institute and School of Population and Global Health, University of Melbourne, Melbourne, Australia
| |
Collapse
|
15
|
Jiménez-Alejo A, Pacheco-Soriano AL, Liedo P, Marina CF, Bond JG, Rodríguez-Ramos JC, Valle J, Dor A. Acceptance of a Sterile Male Releases Pilot Project to Reduce Aedes aegypti (Linnaeus, 1762) (Diptera: Culicidae) Populations and Its Associated Factors: A Community-based Cross-sectional Survey in South Chiapas, Mexico. Acta Trop 2022; 233:106573. [DOI: 10.1016/j.actatropica.2022.106573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 06/25/2022] [Accepted: 06/25/2022] [Indexed: 12/01/2022]
|
16
|
Gangopadhyay A, Saha A. Drug repurposing against the RNA-dependent RNA polymerase domain of dengue serotype 3 by virtual screening and molecular dynamics simulations. J Biomol Struct Dyn 2022:1-14. [PMID: 35642087 DOI: 10.1080/07391102.2022.2080764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Dengue is an arboviral disease caused by the dengue flavivirus. The NS5 protein of flaviviruses is a potential therapeutic target, and comprises an RNA-dependent RNA polymerase (RDRP) domain that catalyses viral replication. The aim of this study was to repurpose FDA-approved drugs against the RDRP domain of dengue virus serotype 3 (DENV3) using structure-based virtual screening and molecular dynamics (MD) simulations. The FDA-approved drugs were screened against the RDRP domain of DENV3 using a two-step docking-based screening approach with Glide SP and Glide XP. For comparison, four reported DENV3 RDRP inhibitors were docked as standards. The hitlist was screened based on the docking score of the inhibitor with the lowest docking score (PubChem ID: 118797902; reported IC50 value: 0.34 µM). Five hits with docking scores and Molecular Mechanics/Generalized Born Surface Area (MM-GBSA) energy lower than those of 118797902 were selected. The stability of the hit-receptor complexes was investigated using 100 ns MD simulations in an explicit solvent. The results of MD simulations demonstrated that polydatin and betiatide remained stably bound to the receptor, and formed stable interactions with the RDRP domain of DENV3. The hit-receptor interactions were comparable to those of 118797902. The average Prime MM-GBSA energy of polydatin and betiatide was lower than that of 118797902 during simulation, indicating that their binding affinity to DENV3 RDRP was higher than that of the standard. The results of this study may aid in the development of serotype-selective drugs against dengue in the future.Communicated by Ramaswamy H. Sarma.
Collapse
Affiliation(s)
- Aditi Gangopadhyay
- Department of Chemical Technology, University of Calcutta, Kolkata, India
| | - Achintya Saha
- Department of Chemical Technology, University of Calcutta, Kolkata, India
| |
Collapse
|
17
|
Wu Q, Dong S, Li X, Yi B, Hu H, Guo Z, Lu J. Effects of COVID-19 Non-Pharmacological Interventions on Dengue Infection: A Systematic Review and Meta-Analysis. Front Cell Infect Microbiol 2022; 12:892508. [PMID: 35663468 PMCID: PMC9162155 DOI: 10.3389/fcimb.2022.892508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 04/19/2022] [Indexed: 11/30/2022] Open
Abstract
Non-pharmacological interventions (NPIs) implemented during the coronavirus disease 2019 (COVID-19) pandemic have demonstrated significant positive effects on other communicable diseases. Nevertheless, the response for dengue fever has been mixed. To illustrate the real implications of NPIs on dengue transmission and to determine the effective measures for preventing and controlling dengue, we performed a systematic review and meta-analysis of the available global data to summarize the effects comprehensively. We searched Embase, PubMed, and Web of Science in line with PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines from December 31, 2019, to March 30, 2022, for studies of NPI efficacy on dengue infection. We obtained the annual reported dengue cases from highly dengue-endemic countries in 2015–2021 from the European Centre for Disease Prevention and Control to determine the actual change in dengue cases in 2020 and 2021, respectively. A random-effects estimate of the pooled odds was generated with the Mantel-Haenszel method. Between-study heterogeneity was assessed using the inconsistency index (I2) and subgroup analysis according to country (dengue-endemic or non-endemic) was conducted. This review was registered with PROSPERO (CRD42021291487). A total of 17 articles covering 32 countries or regions were included in the review. Meta-analysis estimated a pooled relative risk of 0.39 (95% CI: 0.28–0.55), and subgroup revealed 0.06 (95% CI: 0.02-0.25) and 0.55 (95% CI: 0.44-0.68) in dengue non-endemic areas and dengue-endemic countries, respectively, in 2020. The majority of highly dengue-endemic countries in Asia and Americas reported 0–100% reductions in dengue cases in 2020 compared to previous years, while some countries (4/20) reported a dramatic increase, resulting in an overall increase of 11%. In contrast, there was an obvious reduction in dengue cases in 2021 in almost all countries (18/20) studied, with an overall 40% reduction rate. The overall effectiveness of NPIs on dengue varied with region and time due to multiple factors, but most countries reported significant reductions. Travel-related interventions demonstrated great effectiveness for reducing imported cases of dengue fever. Internal movement restrictions of constantly varying intensity and range are more likely to mitigate the entire level of dengue transmission by reducing the spread of dengue fever between regions within a country, which is useful for developing a more comprehensive and sustainable strategy for preventing and controlling dengue fever in the future.
Collapse
Affiliation(s)
- Qin Wu
- One Health Center of Excellence for Research and Training, School of Public Health, Sun Yat-sen University, Guangzhou, China
- National Medical Products Administration (NMPA) Key Laboratory for Quality Monitoring and Evaluation of Vaccines and Biological Products, Guangzhou, China
- Key Laboratory of Tropical Diseases Control, Sun Yat-Sen University, Ministry of Education, Guangzhou, China
| | - Shuwen Dong
- One Health Center of Excellence for Research and Training, School of Public Health, Sun Yat-sen University, Guangzhou, China
- National Medical Products Administration (NMPA) Key Laboratory for Quality Monitoring and Evaluation of Vaccines and Biological Products, Guangzhou, China
- Key Laboratory of Tropical Diseases Control, Sun Yat-Sen University, Ministry of Education, Guangzhou, China
| | - Xiaokang Li
- One Health Center of Excellence for Research and Training, School of Public Health, Sun Yat-sen University, Guangzhou, China
- National Medical Products Administration (NMPA) Key Laboratory for Quality Monitoring and Evaluation of Vaccines and Biological Products, Guangzhou, China
- Key Laboratory of Tropical Diseases Control, Sun Yat-Sen University, Ministry of Education, Guangzhou, China
| | - Boyang Yi
- One Health Center of Excellence for Research and Training, School of Public Health, Sun Yat-sen University, Guangzhou, China
- National Medical Products Administration (NMPA) Key Laboratory for Quality Monitoring and Evaluation of Vaccines and Biological Products, Guangzhou, China
- Key Laboratory of Tropical Diseases Control, Sun Yat-Sen University, Ministry of Education, Guangzhou, China
| | - Huan Hu
- One Health Center of Excellence for Research and Training, School of Public Health, Sun Yat-sen University, Guangzhou, China
- National Medical Products Administration (NMPA) Key Laboratory for Quality Monitoring and Evaluation of Vaccines and Biological Products, Guangzhou, China
- Key Laboratory of Tropical Diseases Control, Sun Yat-Sen University, Ministry of Education, Guangzhou, China
| | - Zhongmin Guo
- Sun Yat-Sen College of Medical Science, Sun Yat-sen University, Guangzhou, China
- *Correspondence: Jiahai Lu, ; Zhongmin Guo,
| | - Jiahai Lu
- One Health Center of Excellence for Research and Training, School of Public Health, Sun Yat-sen University, Guangzhou, China
- National Medical Products Administration (NMPA) Key Laboratory for Quality Monitoring and Evaluation of Vaccines and Biological Products, Guangzhou, China
- Key Laboratory of Tropical Diseases Control, Sun Yat-Sen University, Ministry of Education, Guangzhou, China
- Research Institute of Sun Yat-Sen University in Shenzhen, Shenzhen, China
- Hainan Medical University ' One Health' " Research Center, Hainan Medical University, Hainan, China
- *Correspondence: Jiahai Lu, ; Zhongmin Guo,
| |
Collapse
|
18
|
Chen Y, Li N, Lourenço J, Wang L, Cazelles B, Dong L, Li B, Liu Y, Jit M, Bosse NI, Abbott S, Velayudhan R, Wilder-Smith A, Tian H, Brady OJ. Measuring the effects of COVID-19-related disruption on dengue transmission in southeast Asia and Latin America: a statistical modelling study. THE LANCET. INFECTIOUS DISEASES 2022; 22:657-667. [PMID: 35247320 PMCID: PMC8890758 DOI: 10.1016/s1473-3099(22)00025-1] [Citation(s) in RCA: 60] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 11/10/2021] [Accepted: 01/07/2022] [Indexed: 01/19/2023]
Abstract
BACKGROUND The COVID-19 pandemic has resulted in unprecedented disruption to society, which indirectly affects infectious disease dynamics. We aimed to assess the effects of COVID-19-related disruption on dengue, a major expanding acute public health threat, in southeast Asia and Latin America. METHODS We assembled data on monthly dengue incidence from WHO weekly reports, climatic data from ERA5, and population variables from WorldPop for 23 countries between January, 2014 and December, 2019 and fit a Bayesian regression model to explain and predict seasonal and multi-year dengue cycles. We compared model predictions with reported dengue data January to December, 2020, and assessed if deviations from projected incidence since March, 2020 are associated with specific public health and social measures (from the Oxford Coronavirus Government Response Tracer database) or human movement behaviours (as measured by Google mobility reports). FINDINGS We found a consistent, prolonged decline in dengue incidence across many dengue-endemic regions that began in March, 2020 (2·28 million cases in 2020 vs 4·08 million cases in 2019; a 44·1% decrease). We found a strong association between COVID-19-related disruption (as measured independently by public health and social measures and human movement behaviours) and reduced dengue risk, even after taking into account other drivers of dengue cycles including climatic and host immunity (relative risk 0·01-0·17, p<0·01). Measures related to the closure of schools and reduced time spent in non-residential areas had the strongest evidence of association with reduced dengue risk, but high collinearity between covariates made specific attribution challenging. Overall, we estimate that 0·72 million (95% CI 0·12-1·47) fewer dengue cases occurred in 2020 potentially attributable to COVID-19-related disruption. INTERPRETATION In most countries, COVID-19-related disruption led to historically low dengue incidence in 2020. Continuous monitoring of dengue incidence as COVID-19-related restrictions are relaxed will be important and could give new insights into transmission processes and intervention options. FUNDING National Key Research and Development Program of China and the Medical Research Council.
Collapse
Affiliation(s)
- Yuyang Chen
- State Key Laboratory of Remote Sensing Science, Center for Global Change and Public Health, College of Global Change and Earth System Science, Beijing Normal University, Beijing, China
| | - Naizhe Li
- State Key Laboratory of Remote Sensing Science, Center for Global Change and Public Health, College of Global Change and Earth System Science, Beijing Normal University, Beijing, China; MOE Key Laboratory for Biodiversity Science and Ecological Engineering, College of Life Sciences, Beijing Normal University, Beijing, China
| | - José Lourenço
- Biosystems and Integrative Sciences Institute, University of Lisbon, Lisbon, Portugal
| | - Lin Wang
- Department of Genetics, University of Cambridge, Cambridge, UK; Mathematical Modelling of Infectious Diseases Unit, Institut Pasteur, UMR2000, CNRS, Paris, France
| | - Bernard Cazelles
- Institut de Biologie de l'École Normale Supérieure UMR8197, Eco-Evolutionary Mathematics, École Normale Supérieure, Paris, France; Unité Mixte Internationnale 209, Mathematical and Computational Modeling of Complex Systems, Sorbonne Université, Paris, France
| | - Lu Dong
- MOE Key Laboratory for Biodiversity Science and Ecological Engineering, College of Life Sciences, Beijing Normal University, Beijing, China
| | - Bingying Li
- State Key Laboratory of Remote Sensing Science, Center for Global Change and Public Health, College of Global Change and Earth System Science, Beijing Normal University, Beijing, China
| | - Yang Liu
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene & Tropical Medicine, London, UK; Department of Infectious Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, UK
| | - Mark Jit
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene & Tropical Medicine, London, UK; Department of Infectious Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, UK
| | - Nikos I Bosse
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene & Tropical Medicine, London, UK; Department of Infectious Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, UK
| | - Sam Abbott
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene & Tropical Medicine, London, UK; Department of Infectious Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, UK
| | - Raman Velayudhan
- Department of Control of Neglected Tropical Diseases, WHO, Geneva, Switzerland
| | - Annelies Wilder-Smith
- Department of Disease Control, London School of Hygiene & Tropical Medicine, London, UK; Heidelberg Institute of Global Health, University of Heidelberg, Heidelberg, Germany
| | - Huaiyu Tian
- State Key Laboratory of Remote Sensing Science, Center for Global Change and Public Health, College of Global Change and Earth System Science, Beijing Normal University, Beijing, China.
| | - Oliver J Brady
- Centre for Mathematical Modelling of Infectious Diseases, London School of Hygiene & Tropical Medicine, London, UK; Department of Infectious Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, UK.
| |
Collapse
|
19
|
Aguiar M, Anam V, Blyuss KB, Estadilla CDS, Guerrero BV, Knopoff D, Kooi BW, Srivastav AK, Steindorf V, Stollenwerk N. Mathematical models for dengue fever epidemiology: A 10-year systematic review. Phys Life Rev 2022; 40:65-92. [PMID: 35219611 PMCID: PMC8845267 DOI: 10.1016/j.plrev.2022.02.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 02/08/2022] [Indexed: 01/11/2023]
Abstract
Mathematical models have a long history in epidemiological research, and as the COVID-19 pandemic progressed, research on mathematical modeling became imperative and very influential to understand the epidemiological dynamics of disease spreading. Mathematical models describing dengue fever epidemiological dynamics are found back from 1970. Dengue fever is a viral mosquito-borne infection caused by four antigenically related but distinct serotypes (DENV-1 to DENV-4). With 2.5 billion people at risk of acquiring the infection, it is a major international public health concern. Although most of the cases are asymptomatic or mild, the disease immunological response is complex, with severe disease linked to the antibody-dependent enhancement (ADE) - a disease augmentation phenomenon where pre-existing antibodies to previous dengue infection do not neutralize but rather enhance the new infection. Here, we present a 10-year systematic review on mathematical models for dengue fever epidemiology. Specifically, we review multi-strain frameworks describing host-to-host and vector-host transmission models and within-host models describing viral replication and the respective immune response. Following a detailed literature search in standard scientific databases, different mathematical models in terms of their scope, analytical approach and structural form, including model validation and parameter estimation using empirical data, are described and analyzed. Aiming to identify a consensus on infectious diseases modeling aspects that can contribute to public health authorities for disease control, we revise the current understanding of epidemiological and immunological factors influencing the transmission dynamics of dengue. This review provide insights on general features to be considered to model aspects of real-world public health problems, such as the current epidemiological scenario we are living in.
Collapse
Affiliation(s)
- Maíra Aguiar
- Basque Center for Applied Mathematics, Alameda de Mazarredo 14, Bilbao, E-48009, Basque Country, Spain; Dipartimento di Matematica, Università degli Studi di Trento, Via Sommarive 14, Povo, Trento, 38123, Italy; Ikerbasque, Basque Foundation for Science, Bilbao, Spain.
| | - Vizda Anam
- Basque Center for Applied Mathematics, Alameda de Mazarredo 14, Bilbao, E-48009, Basque Country, Spain
| | - Konstantin B Blyuss
- VU University, Faculty of Science, De Boelelaan 1085, NL 1081, HV Amsterdam, the Netherlands
| | - Carlo Delfin S Estadilla
- Basque Center for Applied Mathematics, Alameda de Mazarredo 14, Bilbao, E-48009, Basque Country, Spain
| | - Bruno V Guerrero
- Basque Center for Applied Mathematics, Alameda de Mazarredo 14, Bilbao, E-48009, Basque Country, Spain
| | - Damián Knopoff
- Basque Center for Applied Mathematics, Alameda de Mazarredo 14, Bilbao, E-48009, Basque Country, Spain; Centro de Investigaciones y Estudios de Matemática CIEM, CONICET, Medina Allende s/n, Córdoba, 5000, Argentina
| | - Bob W Kooi
- University of Sussex, Department of Mathematics, Falmer, Brighton, UK
| | - Akhil Kumar Srivastav
- Basque Center for Applied Mathematics, Alameda de Mazarredo 14, Bilbao, E-48009, Basque Country, Spain
| | - Vanessa Steindorf
- Basque Center for Applied Mathematics, Alameda de Mazarredo 14, Bilbao, E-48009, Basque Country, Spain
| | - Nico Stollenwerk
- Basque Center for Applied Mathematics, Alameda de Mazarredo 14, Bilbao, E-48009, Basque Country, Spain; Dipartimento di Matematica, Università degli Studi di Trento, Via Sommarive 14, Povo, Trento, 38123, Italy
| |
Collapse
|
20
|
Sallas J, Elidio GA, Costacurta GF, Frank CHM, Rohlfs DB, Pacheco FC, Guilhem DB. Decréscimo nas notificações compulsórias registradas pela Rede Nacional de Vigilância Epidemiológica Hospitalar do Brasil durante a pandemia da COVID-19: um estudo descritivo, 2017-2020. EPIDEMIOLOGIA E SERVIÇOS DE SAÚDE 2022; 31:e2021303. [DOI: 10.1590/s1679-49742022000100011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 10/25/2021] [Indexed: 11/22/2022] Open
Abstract
Resumo Objetivo: Descrever as notificações compulsórias de doenças, agravos e eventos de saúde pública (DAEs) registradas pela Rede Nacional de Vigilância Epidemiológica Hospitalar (Renaveh) do Brasil antes e durante a pandemia de COVID-19. Métodos: Estudo ecológico descritivo, com registros do Sistema de Informação de Agravos de Notificação (Sinan) no período correspondente às Semanas Epidemiológicas (SEs) 1 de 2017 (1º de janeiro de 2017) a 52 de 2020 (26 de dezembro de 2020). Resultados: No período de 2017 a 2020, a Renaveh notificou 1.258.455 fichas de DAEs, das quais apenas 225.081 (17,9%) foram notificadas em 2020, representando um decréscimo de 146.340 registros em relação às notificações de 2019. Na análise temporal por SE, houve decréscimo maior que mil registros nas notificações a partir da SE 12. Conclusão: Houve decréscimo nas notificações compulsórias de DAEs registradas pela Renaveh em todo o período analisado, com destaque para o ano de 2020.
Collapse
|
21
|
Yuan HY. Preparing for and preventing dengue explosion in East Asia after border reopening. THE LANCET REGIONAL HEALTH. WESTERN PACIFIC 2022; 19:100378. [PMID: 35072127 PMCID: PMC8760925 DOI: 10.1016/j.lanwpc.2021.100378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hsiang-Yu Yuan
- Department of Biomedical Sciences, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Hong Kong SAR, China
- Centre for Applied One Health Research and Policy Advice, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Hong Kong SAR, China
- Guy Carpenter Asia-Pacific Climate Impact Centre, City University of Hong Kong, Hong Kong SAR, China
- Correspondence: Hsiang-Yu Yuan, Department of Biomedical Sciences, Jockey Club College of Veterinary Medicine and Life Sciences, City University of Hong Kong, Hong Kong SAR, China
| |
Collapse
|
22
|
Abstract
Despite COVID-19-related disruptions in controlling dengue, efforts need to be maintained to prevent vector-borne diseases during this pandemic. Although travel restrictions brought a global halt to mobility and therefore also a substantial decline of imported and travel-associated dengue, dengue will become dominant again in travel medicine as soon as international travel resumes.
Collapse
Affiliation(s)
- Annelies Wilder-Smith
- Institute of Social and Preventive Medicine, University of Bern, Switzerland.,Heidelberg Institute of Global Health, University of Heidelberg Germany
| |
Collapse
|
23
|
Barzon L, Gobbi F, Capelli G, Montarsi F, Martini S, Riccetti S, Sinigaglia A, Pacenti M, Pavan G, Rassu M, Padovan MT, Manfrin V, Zanella F, Russo F, Foglia F, Lazzarini L. Autochthonous dengue outbreak in Italy 2020: clinical, virological and entomological findings. J Travel Med 2021; 28:6354471. [PMID: 34409443 PMCID: PMC8499737 DOI: 10.1093/jtm/taab130] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 08/08/2021] [Accepted: 08/09/2021] [Indexed: 12/02/2022]
Abstract
BACKGROUND In August 2020, in the context of COVID-19 pandemics, an autochthonous dengue outbreak was identified for the first time in Italy. METHODS Following the reporting of the index case of autochthonous dengue, epidemiological investigation, vector control and substances of human origin safety measures were immediately activated, according to the national arbovirus surveillance plan. Dengue cases were followed-up with weekly visits and laboratory tests until recovery and clearance of viral RNA from blood. RESULTS The primary dengue case was identified in a young woman, who developed fever after returning from Indonesia to northern Italy, on 27 July 2020. She spent the mandatory quarantine for COVID-19 at home with relatives, six of whom developed dengue within two weeks. Epidemiological investigation identified further five autochthonous dengue cases among people who lived or stayed near the residence of the primary case. The last case of the outbreak developed fever on 29 September 2020. Dengue cases had a mild febrile illness, except one with persistent asthenia and myalgia. DENV-1 RNA was detected in blood and/or urine in all autochthonous cases, up to 35 days after fever onset. All cases developed IgM and IgG antibodies which cross-reacted with West Nile virus (WNV) and other flaviviruses. Sequencing of the full viral genome from blood samples showed over 99% nucleotide identity with DENV-1 strains isolated in China in 2014-2015; phylogenetic analysis classified the virus within Genotype I. Entomological site inspection identified a high density of Aedes albopictus mosquitoes, which conceivably sustained local DENV-1 transmission. Aedes koreicus mosquitoes were also collected in the site. CONCLUSIONS Areas in Europe with high density of Aedes mosquitoes should be considered at risk for dengue transmission. The presence of endemic flaviviruses, such as WNV, might pose problems in the laboratory diagnosis.
Collapse
Affiliation(s)
- Luisa Barzon
- Veneto Region Arbovirosis Task Force, Dorsoduro, 3493 - Rio Nuovo - 30123 Venezia, Italy.,Department of Molecular Medicine, University of Padova, via A. Gabelli 63, 35121 Padova, Italy.,Microbiology and Virology Unit, Padova University Hospital, Via Giustiniani 2, 35128 Padova, Italy
| | - Federico Gobbi
- Veneto Region Arbovirosis Task Force, Dorsoduro, 3493 - Rio Nuovo - 30123 Venezia, Italy.,Department of Infectious/Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Via Luigi Rizzardi 4, 37024, Negrar di Valpolicella, Verona, Italy
| | - Gioia Capelli
- Veneto Region Arbovirosis Task Force, Dorsoduro, 3493 - Rio Nuovo - 30123 Venezia, Italy.,Istituto Zooprofilattico Sperimentale delle Venezie, Viale dell'Università 10, 35020 Legnaro, Padova, Italy
| | - Fabrizio Montarsi
- Veneto Region Arbovirosis Task Force, Dorsoduro, 3493 - Rio Nuovo - 30123 Venezia, Italy.,Istituto Zooprofilattico Sperimentale delle Venezie, Viale dell'Università 10, 35020 Legnaro, Padova, Italy
| | - Simone Martini
- Veneto Region Arbovirosis Task Force, Dorsoduro, 3493 - Rio Nuovo - 30123 Venezia, Italy.,Entostudio s.r.l., Viale del Lavoro, 66, 35020 Ponte San Nicolò, Padova, Italy
| | - Silvia Riccetti
- Department of Molecular Medicine, University of Padova, via A. Gabelli 63, 35121 Padova, Italy
| | - Alessandro Sinigaglia
- Department of Molecular Medicine, University of Padova, via A. Gabelli 63, 35121 Padova, Italy
| | - Monia Pacenti
- Microbiology and Virology Unit, Padova University Hospital, Via Giustiniani 2, 35128 Padova, Italy
| | - Giacomina Pavan
- Department of Microbiology, St. Bortolo Hospital, Viale Ferdinando Rodolfi 37, 36100 Vicenza, Italy
| | - Mario Rassu
- Department of Microbiology, St. Bortolo Hospital, Viale Ferdinando Rodolfi 37, 36100 Vicenza, Italy
| | - Maria Teresa Padovan
- Department of Public Health, Azienda AULSS8 Berica, Viale Ferdinando Rodolfi 37, 36100 Vicenza, Italy
| | - Vinicio Manfrin
- Department of Infectious Diseases, St. Bortolo Hospital, Viale Ferdinando Rodolfi 37, 36100 Vicenza, Italy
| | - Francesca Zanella
- Veneto Region Arbovirosis Task Force, Dorsoduro, 3493 - Rio Nuovo - 30123 Venezia, Italy.,Direzione Prevenzione, Sicurezza Alimentare Veterinaria, Dorsoduro, 3493 - Rio Nuovo - 30123 Venice, Italy
| | - Francesca Russo
- Veneto Region Arbovirosis Task Force, Dorsoduro, 3493 - Rio Nuovo - 30123 Venezia, Italy.,Direzione Prevenzione, Sicurezza Alimentare Veterinaria, Dorsoduro, 3493 - Rio Nuovo - 30123 Venice, Italy
| | - Felice Foglia
- Department of Public Health, Azienda AULSS8 Berica, Viale Ferdinando Rodolfi 37, 36100 Vicenza, Italy
| | - Luca Lazzarini
- Department of Infectious Diseases, St. Bortolo Hospital, Viale Ferdinando Rodolfi 37, 36100 Vicenza, Italy
| |
Collapse
|
24
|
Chavhan SS, Kashyap V, Gokhale CN, Adsul BB, Gomare M, Kumbhar M, Kadam N, Dhikale PT, Kinge KV. Epidemiological study to assess the impact of COVID-19 pandemic on the occurrence of monsoon-related diseases in the city of Mumbai. J Family Med Prim Care 2021; 10:3595-3599. [PMID: 34934652 PMCID: PMC8653436 DOI: 10.4103/jfmpc.jfmpc_151_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 06/10/2021] [Accepted: 06/20/2021] [Indexed: 11/04/2022] Open
Abstract
Background The onset of monsoons in Mumbai poses an additional health disease burden in the form of rising vector-borne and water-borne diseases such as dengue, malaria, leptospirosis, hepatitis, typhoid, chikungunya, and acute gastroenteritis. These monsoon-related illnesses are preventable with hygienic and sanitation measures that are likely to have been adopted during COVID-19 pandemic. Aim To assess the impact of COVID-19 pandemic on the occurrence of monsoon-related diseases in the city of Mumbai and find out determinants of variations if any. Material and Methods This was a retrospective descriptive study. Universal sampling was done using secondary data collected from the Epidemiological Cell of Municipal Corporation of Greater Mumbai (MCGM). Data mining was performed to obtain the trends of the monsoon-related diseases in Mumbai. Results COVID-19 pandemic has remarkably affected the city of Mumbai with approximately 3 lakh cases till December 2020. MCGM has taken a lot of efforts resulting in a recovery rate of close to 95% with less than 3% mortality. With the effective use of social behavior change communication, which focused on masks, frequent hand washing, and social distancing, there seems to be a decline in monsoon-related illnesses in the year 2020 as compared to the previous two years of 2018 and 2019. Conclusion Monsoon-related illnesses are impacted by behavior and lifestyle modifications like hygiene and environmental sanitation practiced during the COVID-19 pandemic. This study highlights the importance of these universal hygienic practices and their utility in the long-term reduction of monsoon-related illnesses.
Collapse
Affiliation(s)
- Smita S Chavhan
- Community Medicine, HBTMC and RNCH, Mumbai, Maharashtra, India
| | - Vandana Kashyap
- Community Medicine, HBTMC and RNCH, Mumbai, Maharashtra, India
| | | | | | - Mangala Gomare
- Executive Health Officer, Municipal Corporation of Greater Mumbai, Mumbai, Maharashtra, India
| | - Maharudra Kumbhar
- Officer on Special Duty, Seven Hills DCH, Municipal Corporation of Greater Mumbai, Mumbai, Maharashtra, India
| | - Neelam Kadam
- Deputy Executive Health Officer, Municipal Corporation of Greater Mumbai, Mumbai, Maharashtra, India
| | | | - Kirti V Kinge
- Community Medicine, HBTMC and RNCH, Mumbai, Maharashtra, India
| |
Collapse
|
25
|
Sheng ZY, Li M, Yang R, Liu YH, Yin XX, Mao JR, Brown HE, Zhou HN, Wang PG, An J. COVID-19 prevention measures reduce dengue spread in Yunnan Province, China, but do not reduce established outbreak. Emerg Microbes Infect 2021; 11:240-249. [PMID: 34935597 PMCID: PMC8745368 DOI: 10.1080/22221751.2021.2022438] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The COVID-19 pandemic and measures against it provided a unique opportunity to understand the transmission of other infectious diseases and to evaluate the efficacy of COVID-19 prevention measures on them. Here we show a dengue epidemic in Yunnan, China, during the pandemic of COVID-19 was dramatically reduced compared to non-pandemic years and, importantly, spread was confined to only one city, Ruili. Three key features characterized this dengue outbreak: (i) the urban-to-suburban spread was efficiently blocked; (ii) the scale of epidemic in urban region was less affected; (iii) co-circulation of multiple strains was attenuated. These results suggested that countermeasures taken during COVID-19 pandemic are efficient to prevent dengue transmission between cities and from urban to suburban, as well to reduce the co-circulation of multiple serotypes or genotypes. Nevertheless, as revealed by the spatial analysis, once the dengue outbreak was established, its distribution was very stable and resistant to measures against COVID-19, implying the possibility to develop a precise prediction method.
Collapse
Affiliation(s)
- Z Y Sheng
- Department of Microbiology, School of Basic Medical Sciences, Capital Medical University, Beijing, PR China
| | - M Li
- Yunnan Provincial Key Laboratory of Vector-borne Disease Control and Research, Yunnan Institute of Parasitic Diseases, Simao Pu'er, Yunnan, PR China
| | - R Yang
- Yunnan Provincial Key Laboratory of Vector-borne Disease Control and Research, Yunnan Institute of Parasitic Diseases, Simao Pu'er, Yunnan, PR China
| | - Y H Liu
- Ruili Center of Disease Prevention and Control, Ruili, Yunnan, PR China
| | - X X Yin
- Ruili Center of Disease Prevention and Control, Ruili, Yunnan, PR China
| | - J R Mao
- Ruili People's Hospital, Ruili, Yunnan, PR China
| | - Heidi E Brown
- Department of Epidemiology and Biostatistics, College of Public Health, University of Arizona
| | - H N Zhou
- Yunnan Provincial Key Laboratory of Vector-borne Disease Control and Research, Yunnan Institute of Parasitic Diseases, Simao Pu'er, Yunnan, PR China
| | - P G Wang
- Department of Microbiology, School of Basic Medical Sciences, Capital Medical University, Beijing, PR China
| | - J An
- Department of Microbiology, School of Basic Medical Sciences, Capital Medical University, Beijing, PR China.,Center of Epilepsy, Beijing Institute for Brain Disorders, Beijing, China
| |
Collapse
|
26
|
Nicolete VC, Rodrigues PT, Johansen IC, Corder RM, Tonini J, Cardoso MA, de Jesus JG, Claro IM, Faria NR, Sabino EC, Castro MC, Ferreira MU. Interacting Epidemics in Amazonian Brazil: Prior Dengue Infection Associated With Increased Coronavirus Disease 2019 (COVID-19) Risk in a Population-Based Cohort Study. Clin Infect Dis 2021; 73:2045-2054. [PMID: 33956939 PMCID: PMC8135953 DOI: 10.1093/cid/ciab410] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Immunity after dengue virus (DENV) infection has been suggested to cross-protect from severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and mortality. METHODS We tested whether serologically proven prior DENV infection diagnosed in September-October 2019, before the coronavirus disease 2019 (COVID-19) pandemic, reduced the risk of SARS-CoV-2 infection and clinically apparent COVID-19 over the next 13 months in a population-based cohort in Amazonian Brazil. Mixed-effects multiple logistic regression analysis was used to identify predictors of infection and disease, adjusting for potential individual and household-level confounders. Virus genomes from 14 local SARS-CoV-2 isolates were obtained using whole-genome sequencing. RESULTS Anti-DENV immunoglobulin G (IgG) was found in 37.0% of 1285 cohort participants (95% confidence interval [CI]: 34.3% to 39.7%) in 2019, with 10.4 (95% CI: 6.7-15.5) seroconversion events per 100 person-years during the follow-up. In 2020, 35.2% of the participants (95% CI: 32.6% to 37.8%) had anti-SARS-CoV-2 IgG and 57.1% of the 448 SARS-CoV-2 seropositives (95% CI: 52.4% to 61.8%) reported clinical manifestations at the time of infection. Participants aged >60 years were twice more likely to have symptomatic COVID-19 than children under 5 years. Locally circulating SARS-CoV-2 isolates were assigned to the B.1.1.33 lineage. Contrary to the cross-protection hypothesis, prior DENV infection was associated with twice the risk of clinically apparent COVID-19 upon SARS-CoV-2 infection, with P values between .025 and .039 after adjustment for identified confounders. CONCLUSIONS Higher risk of clinically apparent COVID-19 among individuals with prior dengue has important public health implications for communities sequentially exposed to DENV and SARS-CoV-2 epidemics.
Collapse
Affiliation(s)
- Vanessa C Nicolete
- Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Priscila T Rodrigues
- Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Igor C Johansen
- Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Rodrigo M Corder
- Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Juliana Tonini
- Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Marly A Cardoso
- Department of Nutrition, School of Public Health, University of São Paulo, São Paulo, Brazil
| | - Jaqueline G de Jesus
- Institute of Tropical Medicine and Department of Infectious and Parasitic Diseases, Medical School, University of São Paulo, São Paulo, Brazil
| | - Ingra M Claro
- Institute of Tropical Medicine and Department of Infectious and Parasitic Diseases, Medical School, University of São Paulo, São Paulo, Brazil
| | - Nuno R Faria
- Institute of Tropical Medicine and Department of Infectious and Parasitic Diseases, Medical School, University of São Paulo, São Paulo, Brazil.,Department of Infectious Disease Epidemiology, Imperial College London, ,London, UK.,Department of Zoology, University of Oxford, Oxford, UK
| | - Ester C Sabino
- Institute of Tropical Medicine and Department of Infectious and Parasitic Diseases, Medical School, University of São Paulo, São Paulo, Brazil
| | - Marcia C Castro
- Department of Global Health and Population, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Marcelo U Ferreira
- Department of Parasitology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| |
Collapse
|
27
|
Has COVID-19 suppressed dengue transmission in Nepal? Epidemiol Infect 2021; 150:e196. [PMID: 36444137 PMCID: PMC9744445 DOI: 10.1017/s0950268822001790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Following the report of the first COVID-19 case in Nepal on 23 January 2020, three major waves were documented between 2020 and 2021. By the end of July 2022, 986 596 cases of confirmed COVID-19 and 11 967 deaths had been reported and 70.5% of the population had received at least two doses of a COVID-19 vaccine. Prior to the pandemic, a large dengue virus (DENV) epidemic affected 68 out of 77 districts, with 17 932 cases and six deaths recorded in 2019. In contrast, the country's Epidemiology and Disease Control Division reported 530 and 540 dengue cases in the pandemic period (2020 and 2021), respectively. Furthermore, Kathmandu reported just 63 dengue cases during 2020 and 2021, significantly lower than the 1463 cases reported in 2019. Serological assay showed 3.2% positivity rates for anti-dengue immunoglobulin M antibodies during the pandemic period, contrasting with 26.9-40% prior to it. Real-time polymerase chain reaction for DENV showed a 0.5% positive rate during the COVID-19 pandemic which is far lower than the 57.0% recorded in 2019. Continuing analyses of dengue incidence and further strengthening of surveillance and collaboration at the regional and international levels are required to fully understand whether the reduction in dengue incidence/transmission were caused by movement restrictions during the COVID-19 pandemic.
Collapse
|
28
|
Navero-Castillejos J, Benitez R, Torner N, Muñoz J, Camprubí-Ferrer D, Peiró-Mestres A, Sulleiro E, Silgado A, Gonzalo V, Falgueras T, Alejo-Cancho I, Roldán M, Plasencia V, Albarracin R, Perez J, Navarro A, Calderón A, Rubio R, Navarro M, Micó M, Llaberia J, Navarro M, Barrachina J, Vilamala A, Martí C, Pulido MÁ, Sanchez-Seco MP, Vazquez A, Martínez A, Jané M, Martínez MJ. Molecular Characterization of Imported and Autochthonous Dengue in Northeastern Spain. Viruses 2021; 13:1910. [PMID: 34696340 PMCID: PMC8539074 DOI: 10.3390/v13101910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/10/2021] [Accepted: 09/13/2021] [Indexed: 12/26/2022] Open
Abstract
Dengue is the most significant arbovirus worldwide and a public health threat to non-endemic areas in which Aedes vectors are present. Autochthonous dengue transmission has been reported in several European countries in the last decade. Infected travelers from endemic regions arriving to areas colonized by Aedes albopictus in Europe need to be monitored in surveillance and control programs. We aimed to perform molecular characterization of RT-PCR-positive dengue cases detected in Catalonia, northeastern Spain, from 2013 to 2018. The basic demographic information and the geographical regions of importation were also analyzed. One-hundred four dengue cases were studied (103 imported infections and the first autochthonous case in our region). The dengue virus strains detected were serotyped and genotyped using molecular methods, and phylogenetic analyses were conducted. All four dengue serotypes were detected in travelers, including up to 10 different genotypes, reflecting the global circulation of dengue in endemic areas. The primary travel-related case of the 2018 autochthonous transmission was not identified, but the molecular analysis revealed dengue serotype 1, genotype I of Asian origin. Our results highlight the diversity of imported dengue virus strains and the role of molecular epidemiology in supporting arbovirus surveillance programs.
Collapse
Affiliation(s)
- Jessica Navero-Castillejos
- Department of Clinical Microbiology, Hospital Clinic de Barcelona, 08036 Barcelona, Spain; (J.N.-C.); (A.P.-M.); (V.G.); (I.A.-C.); (R.A.); (A.N.); (M.N.); (J.B.)
- Barcelona Institute for Global Health (ISGlobal), Hospital Clinic de Barcelona, Universitat de Barcelona, 08036 Barcelona, Spain; (J.M.); (D.C.-F.); (M.R.)
| | - Rosa Benitez
- North Metropolitan International Health Unit PROSICS, Hospital Universitari Germans Trias i Pujol, 08916 Badalona, Spain;
| | - Nuria Torner
- CIBER Epidemiology and Public Health CIBERESP, University of Barcelona, 08036 Barcelona, Spain;
| | - José Muñoz
- Barcelona Institute for Global Health (ISGlobal), Hospital Clinic de Barcelona, Universitat de Barcelona, 08036 Barcelona, Spain; (J.M.); (D.C.-F.); (M.R.)
| | - Daniel Camprubí-Ferrer
- Barcelona Institute for Global Health (ISGlobal), Hospital Clinic de Barcelona, Universitat de Barcelona, 08036 Barcelona, Spain; (J.M.); (D.C.-F.); (M.R.)
| | - Aida Peiró-Mestres
- Department of Clinical Microbiology, Hospital Clinic de Barcelona, 08036 Barcelona, Spain; (J.N.-C.); (A.P.-M.); (V.G.); (I.A.-C.); (R.A.); (A.N.); (M.N.); (J.B.)
| | - Elena Sulleiro
- Department of Microbiology, Vall d’Hebron University Hospital, PROSICS, 08035 Barcelona, Spain; (E.S.); (A.S.)
| | - Aroa Silgado
- Department of Microbiology, Vall d’Hebron University Hospital, PROSICS, 08035 Barcelona, Spain; (E.S.); (A.S.)
| | - Verónica Gonzalo
- Department of Clinical Microbiology, Hospital Clinic de Barcelona, 08036 Barcelona, Spain; (J.N.-C.); (A.P.-M.); (V.G.); (I.A.-C.); (R.A.); (A.N.); (M.N.); (J.B.)
| | - Teresa Falgueras
- Hospital Municipal de Badalona, Badalona Serveis Assistencials, 08911 Badalona, Spain; (T.F.); (A.C.)
| | - Izaskun Alejo-Cancho
- Department of Clinical Microbiology, Hospital Clinic de Barcelona, 08036 Barcelona, Spain; (J.N.-C.); (A.P.-M.); (V.G.); (I.A.-C.); (R.A.); (A.N.); (M.N.); (J.B.)
| | - Montserrat Roldán
- Barcelona Institute for Global Health (ISGlobal), Hospital Clinic de Barcelona, Universitat de Barcelona, 08036 Barcelona, Spain; (J.M.); (D.C.-F.); (M.R.)
| | - Virginia Plasencia
- Microbiology Laboratory, Catlab, 08232 Viladecavalls, Spain; (V.P.); (J.P.); (R.R.)
| | - Rosa Albarracin
- Department of Clinical Microbiology, Hospital Clinic de Barcelona, 08036 Barcelona, Spain; (J.N.-C.); (A.P.-M.); (V.G.); (I.A.-C.); (R.A.); (A.N.); (M.N.); (J.B.)
| | - Josefa Perez
- Microbiology Laboratory, Catlab, 08232 Viladecavalls, Spain; (V.P.); (J.P.); (R.R.)
| | - Alexander Navarro
- Department of Clinical Microbiology, Hospital Clinic de Barcelona, 08036 Barcelona, Spain; (J.N.-C.); (A.P.-M.); (V.G.); (I.A.-C.); (R.A.); (A.N.); (M.N.); (J.B.)
| | - Ana Calderón
- Hospital Municipal de Badalona, Badalona Serveis Assistencials, 08911 Badalona, Spain; (T.F.); (A.C.)
| | - Rosa Rubio
- Microbiology Laboratory, Catlab, 08232 Viladecavalls, Spain; (V.P.); (J.P.); (R.R.)
| | - Mireia Navarro
- Department of Clinical Microbiology, Hospital Clinic de Barcelona, 08036 Barcelona, Spain; (J.N.-C.); (A.P.-M.); (V.G.); (I.A.-C.); (R.A.); (A.N.); (M.N.); (J.B.)
- Barcelona Institute for Global Health (ISGlobal), Hospital Clinic de Barcelona, Universitat de Barcelona, 08036 Barcelona, Spain; (J.M.); (D.C.-F.); (M.R.)
| | - Miguel Micó
- Microbiology Department, Xarxa Assistencial Universitària de Manresa, 08243 Manresa, Spain;
| | - Jaume Llaberia
- Hospital de Barcelona, Societat Cooperativa d’Instal·lacions Assistencials Sanitàries (SCIAS), 08034 Barcelona, Spain;
| | - María Navarro
- Microbiology Department, Hospital Universitari de Vic, 08500 Barcelona, Spain; (M.N.); (A.V.)
| | - Josep Barrachina
- Department of Clinical Microbiology, Hospital Clinic de Barcelona, 08036 Barcelona, Spain; (J.N.-C.); (A.P.-M.); (V.G.); (I.A.-C.); (R.A.); (A.N.); (M.N.); (J.B.)
| | - Anna Vilamala
- Microbiology Department, Hospital Universitari de Vic, 08500 Barcelona, Spain; (M.N.); (A.V.)
| | - Carmina Martí
- Hospital General de Granollers, 08402 Granollers, Spain; (C.M.); (M.Á.P.)
| | | | - María Paz Sanchez-Seco
- Centro Nacional de Microbiología, Instituto de Salud Carlos III, 28222 Madrid, Spain; (M.P.S.-S.); (A.V.)
| | - Ana Vazquez
- Centro Nacional de Microbiología, Instituto de Salud Carlos III, 28222 Madrid, Spain; (M.P.S.-S.); (A.V.)
- Centro de Investigación Biomédica en Red en Epidemiología y Salud Pública (CIBERESP), 28029 Madrid, Spain
| | - Ana Martínez
- Public Health Agency of Catalonia, Generalitat of Catalonia, 08005 Barcelona, Spain; (A.M.); (M.J.)
| | - Mireia Jané
- Public Health Agency of Catalonia, Generalitat of Catalonia, 08005 Barcelona, Spain; (A.M.); (M.J.)
| | - Miguel Julián Martínez
- Department of Clinical Microbiology, Hospital Clinic de Barcelona, 08036 Barcelona, Spain; (J.N.-C.); (A.P.-M.); (V.G.); (I.A.-C.); (R.A.); (A.N.); (M.N.); (J.B.)
- Barcelona Institute for Global Health (ISGlobal), Hospital Clinic de Barcelona, Universitat de Barcelona, 08036 Barcelona, Spain; (J.M.); (D.C.-F.); (M.R.)
| |
Collapse
|
29
|
Dengue at the time of COVID-19 in the Philippines. Western Pac Surveill Response J 2021; 12:38-39. [PMID: 34540310 PMCID: PMC8421742 DOI: 10.5365/wpsar.2020.11.2.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|
30
|
Stone CM. Highlights of Medical Entomology, 2020. JOURNAL OF MEDICAL ENTOMOLOGY 2021; 58:2006-2011. [PMID: 34342359 PMCID: PMC8385844 DOI: 10.1093/jme/tjab103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Indexed: 06/13/2023]
Abstract
Medical Entomology as a field is inherently global - thriving on international and interdisciplinary collaborations and affected dramatically by arthropod and pathogen invasions and introductions. This past year also will be remembered as the year in which the SARS-CoV-2 COVID-19 pandemic affected every part of our lives and professional activities and impacted (or changed, sometimes in good ways) our ability to collaborate and detect or respond to invasions. This incredible year is the backdrop for the 2020 Highlights in Medical Entomology. This article highlights the broad scope of approaches and disciplines represented in the 2020 published literature, ranging from sensory and chemical ecology, population genetics, impacts of human-mediated environmental change on vector ecology, life history and the evolution of vector behaviors, to the latest developments in vector surveillance and control.
Collapse
Affiliation(s)
- Chris M Stone
- Illinois Natural History Survey, University of Illinois at Urbana-Champaign, 1816 S. Oak Drive, Champaign, IL 61820, USA
| |
Collapse
|
31
|
Li N, Feng Y, Vrancken B, Chen Y, Dong L, Yang Q, Kraemer MU, Pybus OG, Zhang H, Brady OJ, Tian H. Assessing the impact of COVID-19 border restrictions on dengue transmission in Yunnan Province, China: an observational epidemiological and phylogenetic analysis. THE LANCET REGIONAL HEALTH. WESTERN PACIFIC 2021; 14:100259. [PMID: 34528006 PMCID: PMC8387751 DOI: 10.1016/j.lanwpc.2021.100259] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 07/15/2021] [Accepted: 07/21/2021] [Indexed: 12/15/2022]
Abstract
BACKGROUND In response to the COVID-19 pandemic, China implemented strict restrictions on cross-border travel to prevent disease importation. Yunnan, a Chinese province that borders dengue-endemic countries in Southeast Asia, experienced unprecedented reduction in dengue, from 6840 recorded cases in 2019 to 260 in 2020. METHODS Using a combination of epidemiological and virus genomic data, collected from 2013 to 2020 in Yunnan and neighbouring countries, we conduct a series of analyses to characterise the role of virus importation in driving dengue dynamics in Yunnan and assess the association between recent international travel restrictions and the decline in dengue reported in Yunnan in 2020. FINDINGS We find strong evidence that dengue incidence between 2013-2019 in Yunnan was closely linked with international importation of cases. A 0-2 month lag in incidence not explained by seasonal differences, absence of local transmission in the winter, effective reproductive numbers < 1 (as estimated independently using genetic data) and diverse cosmopolitan dengue virus phylogenies all suggest dengue is non-endemic in Yunnan. Using a multivariate statistical model we show that the substantial decline in dengue incidence observed in Yunnan in 2020 but not in neighbouring countries is closely associated with the timing of international travel restrictions, even after accounting for other environmental drivers of dengue incidence. INTERPRETATION We conclude that Yunnan is a regional sink for DENV lineage movement and that border restrictions may have substantially reduced dengue burden in 2020, potentially averting thousands of cases. Targeted testing and surveillance of travelers returning from high-risk areas could help to inform public health strategies to minimise or even eliminate dengue outbreaks in non-endemic settings like southern China. FUNDING Funding for this study was provided by National Key Research and Development Program of China, Beijing Science and Technology Planning Project (Z201100005420010); Beijing Natural Science Foundation (JQ18025); Beijing Advanced Innovation Program for Land Surface Science; National Natural Science Foundation of China (82073616); Young Elite Scientist Sponsorship Program by CAST (YESS) (2018QNRC001); H.T., O.P.G. and M.U.G.K. acknowledge support from the Oxford Martin School. O.J.B was supported by a Wellcome Trust Sir Henry Wellcome Fellowship (206471/Z/17/Z). Chinese translation of the abstract (Appendix 2).
Collapse
Affiliation(s)
- Naizhe Li
- State Key Laboratory of Remote Sensing Science, Center for Global Change and Public Health, College of Global Change and Earth System Science, Beijing Normal University, Beijing, China,College of Life Sciences, Beijing Normal University, Beijing, China
| | - Yun Feng
- Yunnan Institute of Endemic Diseases Control and Prevention, Yunnan Provincial Key Laboratory for Zoonosis Control and Prevention, Dali, China
| | - Bram Vrancken
- Department of Microbiology and Immunology, Rega Institute, Laboratory of Evolutionary and Computational Virology, KU Leuven, Leuven, Belgium
| | - Yuyang Chen
- State Key Laboratory of Remote Sensing Science, Center for Global Change and Public Health, College of Global Change and Earth System Science, Beijing Normal University, Beijing, China,College of Life Sciences, Beijing Normal University, Beijing, China
| | - Lu Dong
- College of Life Sciences, Beijing Normal University, Beijing, China
| | - Qiqi Yang
- Department of Ecology and Evolutionary Biology, Princeton University, Princeton, NJ, USA
| | - Moritz U.G. Kraemer
- Department of Zoology, University of Oxford, Oxford, UK,Harvard Medical School, Harvard University, Boston, MA, USA,Boston Children's Hospital, Boston, MA, USA
| | - Oliver G. Pybus
- Department of Zoology, University of Oxford, Oxford, UK,Department of Pathobiology and Population Science, The Royal Veterinary College, London, UK
| | - Hailin Zhang
- Yunnan Institute of Endemic Diseases Control and Prevention, Yunnan Provincial Key Laboratory for Zoonosis Control and Prevention, Dali, China,Corresponding author
| | - Oliver J. Brady
- Centre for the Mathematical Modelling of Infectious Diseases, London School of Hygiene & Tropical Medicine, London, UK,Department of Infectious Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, London, UK,Corresponding author
| | - Huaiyu Tian
- State Key Laboratory of Remote Sensing Science, Center for Global Change and Public Health, College of Global Change and Earth System Science, Beijing Normal University, Beijing, China,College of Life Sciences, Beijing Normal University, Beijing, China,Corresponding author
| |
Collapse
|
32
|
Cavany SM, España G, Vazquez-Prokopec GM, Scott TW, Perkins TA. Pandemic-associated mobility restrictions could cause increases in dengue virus transmission. PLoS Negl Trop Dis 2021; 15:e0009603. [PMID: 34370734 PMCID: PMC8375978 DOI: 10.1371/journal.pntd.0009603] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 08/19/2021] [Accepted: 06/28/2021] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The COVID-19 pandemic has induced unprecedented reductions in human mobility and social contacts throughout the world. Because dengue virus (DENV) transmission is strongly driven by human mobility, behavioral changes associated with the pandemic have been hypothesized to impact dengue incidence. By discouraging human contact, COVID-19 control measures have also disrupted dengue vector control interventions, the most effective of which require entry into homes. We sought to investigate how and why dengue incidence could differ under a lockdown scenario with a proportion of the population sheltered at home. METHODOLOGY & PRINCIPAL FINDINGS We used an agent-based model with a realistic treatment of human mobility and vector control. We found that a lockdown in which 70% of the population sheltered at home and which occurred in a season when a new serotype invaded could lead to a small average increase in cumulative DENV infections of up to 10%, depending on the time of year lockdown occurred. Lockdown had a more pronounced effect on the spatial distribution of DENV infections, with higher incidence under lockdown in regions with higher mosquito abundance. Transmission was also more focused in homes following lockdown. The proportion of people infected in their own home rose from 54% under normal conditions to 66% under lockdown, and the household secondary attack rate rose from 0.109 to 0.128, a 17% increase. When we considered that lockdown measures could disrupt regular, city-wide vector control campaigns, the increase in incidence was more pronounced than with lockdown alone, especially if lockdown occurred at the optimal time for vector control. CONCLUSIONS & SIGNIFICANCE Our results indicate that an unintended outcome of lockdown measures may be to adversely alter the epidemiology of dengue. This observation has important implications for an improved understanding of dengue epidemiology and effective application of dengue vector control. When coordinating public health responses during a syndemic, it is important to monitor multiple infections and understand that an intervention against one disease may exacerbate another.
Collapse
Affiliation(s)
- Sean M. Cavany
- Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana, United States of America
| | - Guido España
- Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana, United States of America
| | | | - Thomas W. Scott
- Department of Entomology and Nematology, University of California, Davis, Davis, California, United States of America
| | - T Alex Perkins
- Department of Biological Sciences, University of Notre Dame, Notre Dame, Indiana, United States of America
| |
Collapse
|
33
|
Tanveer M, Ahmed A, Siddiqui A, Gudi SK. The mystery of plummeting cases of measles during COVID-19 pandemic in Pakistan: Hidden impact of collateral damage. J Med Virol 2021; 93:5236-5238. [PMID: 33942340 PMCID: PMC8242366 DOI: 10.1002/jmv.27045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 04/23/2021] [Indexed: 12/14/2022]
Affiliation(s)
- Maria Tanveer
- Department of Pharmacy, Quaid I Azam University, Islamabad, Pakistan
| | - Ali Ahmed
- School of Pharmacy, Monash University, Subang Jaya, Selangor, Malaysia
| | - Adeel Siddiqui
- Department of Pharmacy, Shaukat Khanum Memorial Cancer Hospital & Research Centre, Lahore, Pakistan
| | | |
Collapse
|