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Delai RM, Leandro ADS, Martins CA, Fitz AFR, Rivas AV, Batista ACCA, Santos ICD, Fruehwirth M, Ferreira L, Rampazzo RDCP, Ferreira LRDP, Gonçalves DD. Adaptation of a Human Diagnostic Kit to Detect Dengue, Zika, and Chikungunya Viruses in Mosquito Samples ( Aedes aegypti and Aedes albopictus): A Contribution to Public Health in the International Triple Border (Brazil, Paraguay, and Argentina). Vector Borne Zoonotic Dis 2022; 22:520-526. [PMID: 36255416 DOI: 10.1089/vbz.2022.0019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023] Open
Abstract
Objective: The objective of this work was to adapt a diagnostic kit developed for humans to identify Dengue (DENV1, DENV2, DENV3, DENV4), Zika (ZIKV) and Chikungunya virus (CHIKV) in females of Aedes aegypti and Aedes albopictus and to verify if the occurrence of mosquitoes infected with these three arboviruses are being found in regions with high occurrence of these diseases in humans. Materials and Methods: For this purpose, live mosquitoes were captured between January and June 2020 using 3,476 traps permanently installed in the field were used. After capture, the species were identified, then the females were placed in a pool of 2 to 10 specimens and sent to the laboratory for detection of DENV1, DENV2, DENV3, DENV4, ZIKV and CHIKV by RT-PCR using a commercial human kit for arboviruses. Results: Of the 76 mosquito pools collected, six (7.9%) pools tested positive for the DENV2 virus. The DENV-positive mosquitoes were collected in regions with a high incidence of reported cases of Dengue or in adjacent areas. Conclusion: The absence of kits for the detection of these arboviruses in Aedes is a limiting factor and the adequacy of commercial kits, already used for the diagnosis of arboviruses in humans, the results presented demonstrate that it is possible to identify the presence of DENV2 in mosquitoes with the respective kit, reinforcing the use of RT-qPCR as a robust diagnostic tool for epidemiological surveillance allowing managers to receive timely results for decision-making regarding prevention and control actions.
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Affiliation(s)
- Robson Michael Delai
- One Health Laboratory, Three-Border Tropical Medicine Center, Institute of Teaching and Research, Itaiguapy Foundation, Foz do Iguaçu, Brazil
- Postgraduate Program in Animal Science with Emphasis on Bioactive Products, Universidade Paranaense, Umuarama, Brazil
| | - André de Souza Leandro
- Zoonoses Surveillance Unit, Municipal Secretary of Health, Foz do Iguaçu, Brazil
- Laboratory of Hematozoan Transmitters, Oswaldo Cruz Institute, Fiocruz, Rio de Janeiro, Brazil
| | | | - Andressa Faria Rahyn Fitz
- One Health Laboratory, Three-Border Tropical Medicine Center, Institute of Teaching and Research, Itaiguapy Foundation, Foz do Iguaçu, Brazil
| | - Açucena Veleh Rivas
- One Health Laboratory, Three-Border Tropical Medicine Center, Institute of Teaching and Research, Itaiguapy Foundation, Foz do Iguaçu, Brazil
- Postgraduate Program in Experimental Pathology, Department of Biological Sciences, State University of Londrina, Londrina, Brazil
| | - Aline Cristiane Cechinel Assing Batista
- One Health Laboratory, Three-Border Tropical Medicine Center, Institute of Teaching and Research, Itaiguapy Foundation, Foz do Iguaçu, Brazil
- Postgraduate Program in Animal Science with Emphasis on Bioactive Products, Universidade Paranaense, Umuarama, Brazil
| | - Isabela Carvalho Dos Santos
- Postgraduate Program in Animal Science with Emphasis on Bioactive Products, Universidade Paranaense, Umuarama, Brazil
| | - Marcelo Fruehwirth
- One Health Laboratory, Three-Border Tropical Medicine Center, Institute of Teaching and Research, Itaiguapy Foundation, Foz do Iguaçu, Brazil
| | - Leonardo Ferreira
- One Health Laboratory, Three-Border Tropical Medicine Center, Institute of Teaching and Research, Itaiguapy Foundation, Foz do Iguaçu, Brazil
| | | | | | - Daniela Dib Gonçalves
- Postgraduate Program in Animal Science with Emphasis on Bioactive Products, Universidade Paranaense, Umuarama, Brazil
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Lin D, Zheng X, Sanogo B, Ding T, Sun X, Wu Z. Bacterial composition of midgut and entire body of laboratory colonies of Aedes aegypti and Aedes albopictus from Southern China. Parasit Vectors 2021; 14:586. [PMID: 34838108 PMCID: PMC8626967 DOI: 10.1186/s13071-021-05050-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Accepted: 10/01/2021] [Indexed: 01/21/2023] Open
Abstract
BACKGROUND Aedes aegypti and Aedes albopictus are invasive mosquito species and significantly impact human health in southern China. Microbiota are confirmed to affect the development and immunity of mosquitoes. However, scientists have focused more on midgut microbiota of female mosquitoes and bacterial differences between female and male Aedes mosquitoes. The relationship between the midgut and entire body microbiota of Aedes is unclear. In this study, we collected mosquito samples reared under the same laboratory conditions and compared the microbial composition of midgut and entire bodies of Aedes aegypti and Aedes albopictus using 16S rRNA gene sequencing. METHODS In this study, we collected mosquito samples reared under the same laboratory conditions and compared the microbial composition of midgut and entire bodies of Aedes aegypti and Aedes albopictus using 16S rRNA gene sequencing. RESULTS A total of 341 OTUs were identified, showing that Proteobacteria was the dominant phylum and Methylobacterium the dominant genus in both Aedes aegypti and Aedes albopictus. The bacterial diversity and community structures of the entire bodies were similar between males and females in both Aedes aegypti and Aedes albopictus. Conversely, the bacterial compositions of male and female Aedes aegypti and Aedes albopictus were significantly different. NMDS analysis, UPGMA analysis, diversity indices and OTU distribution demonstrated that compositions and structures in midgut microbiota were similar but significantly different in the entire bodies of Aedes aegypti and Aedes albopictus. Functional prediction analysis showed that metabolism and environmental information processing were the dominant KEGG pathways at level 1. Our study showed that there were significantly different level 2 and 3 KEGG pathways in the midgut microbiota (16 level 2 and 24 level 3) and the entire bodies (33 level 2 and 248 level 3) between female Aedes albopictus and Aedes Aegypti. CONCLUSIONS Our findings that Aedes aegypti and Aedes albopictus reared in the same laboratory harbor a similar gut bacterial microbiome but different entire body microbiota imply that the gut microbiota of adult mosquitoes is environmentally determined regardless of the host genotype, but the entire body microbiota is more genetically determined. Our findings improved the understanding of the microbiota in the entire and partial tissues of Aedes mosquitoes.
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Affiliation(s)
- Datao Lin
- Department of Parasitology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong, China.,Key Laboratory of Tropical Disease Control, Ministry of Education, Provincial Engineering Technology Research Center for Diseases-Vectors Control, Guangzhou, Guangdong, China.,Chinese Atomic Energy Agency Center of Excellence on Nuclear Technology Applications for Insect Control, Sun Yat-sen University, Guangzhou, China
| | - Xiaoying Zheng
- Department of Parasitology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong, China.,Key Laboratory of Tropical Disease Control, Ministry of Education, Provincial Engineering Technology Research Center for Diseases-Vectors Control, Guangzhou, Guangdong, China.,Chinese Atomic Energy Agency Center of Excellence on Nuclear Technology Applications for Insect Control, Sun Yat-sen University, Guangzhou, China
| | - Benjamin Sanogo
- Department of Parasitology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong, China.,Key Laboratory of Tropical Disease Control, Ministry of Education, Provincial Engineering Technology Research Center for Diseases-Vectors Control, Guangzhou, Guangdong, China
| | - Tao Ding
- Key Laboratory of Tropical Disease Control, Ministry of Education, Provincial Engineering Technology Research Center for Diseases-Vectors Control, Guangzhou, Guangdong, China
| | - Xi Sun
- Department of Parasitology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong, China. .,Key Laboratory of Tropical Disease Control, Ministry of Education, Provincial Engineering Technology Research Center for Diseases-Vectors Control, Guangzhou, Guangdong, China.
| | - Zhongdao Wu
- Department of Parasitology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong, China. .,Key Laboratory of Tropical Disease Control, Ministry of Education, Provincial Engineering Technology Research Center for Diseases-Vectors Control, Guangzhou, Guangdong, China. .,Chinese Atomic Energy Agency Center of Excellence on Nuclear Technology Applications for Insect Control, Sun Yat-sen University, Guangzhou, China.
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Norman FF, Henríquez-Camacho C, Díaz-Menendez M, Chamorro S, Pou D, Molina I, Goikoetxea J, Rodríguez-Guardado A, Calabuig E, Crespillo C, Oliveira I, Pérez-Molina JA, López-Velez R. Imported Arbovirus Infections in Spain, 2009-2018. Emerg Infect Dis 2021; 26:658-666. [PMID: 32186486 PMCID: PMC7101102 DOI: 10.3201/eid2604.190443] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
To determine the epidemiologic and clinical characteristics of patients in Spain with imported arbovirus infections, we analyzed 22,655 records from a collaborative network for January 2009-December 2018. Among 861 arbovirus infections, 845 were monoinfections (456 [53%] dengue, 280 [32.5%] chikungunya, 109 [12.7%] Zika) and 16 (1.8%) were co-infections. Most patients were travelers (56.3%) or immigrants returning to Spain after visiting friends or relatives (31.3%). Median patient age was 37 years; most (62.3%) were women and some (28.6%) had received pretravel advice. Only 12 patients were immunosuppressed. Six cases (all dengue monoinfections, none in immunosuppressed patients) were severe. Since 2014, nondengue arbovirus infections increased; until 2016, chikungunya and Zika were most common. Imported arbovirus infections (mostly dengue) were frequently diagnosed, although increased chikungunya and Zika virus infections coincided with their introduction and spread in the Americas. A large proportion of cases occurred in women of childbearing age, some despite receipt of pretravel advice.
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Lee SK, Hong HS. Text network analysis of research topics and trends on global health nursing literature from 1974 -2017. J Adv Nurs 2020; 77:1325-1334. [PMID: 33617029 DOI: 10.1111/jan.14685] [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: 04/06/2020] [Revised: 10/06/2020] [Accepted: 11/06/2020] [Indexed: 11/29/2022]
Abstract
AIMS The purpose of this study is to examine the relationship between keywords in existing global health nursing studies during 44 years (1974-2017) and to develop schematic diagrams of the relationship between these keywords from a macro perspective. It is to identify the trend of the literature in global health nursing field. DESIGN A descriptive bibliometric analysis of publications in global health nursing. METHODS The keywords from 7,115 articles and literatures were examined using the Text Rank Analyzer via the applied text network analysis with NetMiner 4.0. RESULTS As for global health nursing, keywords with the most frequent appearance and the highest networking degree in centrality were 'study', 'patient', 'nurse', and 'women'. Six central keywords were also found highly related to other keywords: 'global health nursing', 'study', 'patient', 'care', 'nurse', and 'education'. By measuring the degree of keywords connected to other keywords in centrality, six clusters were established. Then, emerging topics assessed by time periods were identified as follows: the beginning phase ('breastfeeding', 'women', and 'children'), the development phase ('quality', 'life', and 'human immunodeficiency virus'), the maturation phase ('mental health', 'depression', and 'global health'), and the expansion phase ('pregnancy', 'palliative care', and 'infectious disease'). CONCLUSION The identified trends on this study will help nurse leaders to grasp the trends and insights for global health and to train future nurses to serve clients better in the practice fields. IMPACT Keywords with the highest appearance and centrality in the network were found in the global health articles. The bibliometric analysis showed various subjects according to the following phases: beginning development maturation and expansion. The awareness of the trend change in the global health helps nursing researchers and educators modify the curriculum of global health nursing and train future nurses to be equipped with the global health competencies.
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Affiliation(s)
- Soo-Kyoung Lee
- College of Nursing, Keimyung University, Daegu, Republic of Korea
| | - Hye Sun Hong
- College of Nursing, Keimyung University, Daegu, Republic of Korea
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de Oliveira Figueiredo P, Stoffella-Dutra AG, Barbosa Costa G, Silva de Oliveira J, Dourado Amaral C, Duarte Santos J, Soares Rocha KL, Araújo Júnior JP, Lacerda Nogueira M, Zazá Borges MA, Pereira Paglia A, Desiree LaBeaud A, Santos Abrahão J, Geessien Kroon E, Bretas de Oliveira D, Paiva Drumond B, de Souza Trindade G. Re-Emergence of Yellow Fever in Brazil during 2016-2019: Challenges, Lessons Learned, and Perspectives. Viruses 2020; 12:E1233. [PMID: 33143114 PMCID: PMC7692154 DOI: 10.3390/v12111233] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/20/2020] [Accepted: 10/23/2020] [Indexed: 12/15/2022] Open
Abstract
Yellow fever (YF) is a re-emerging viral zoonosis caused by the Yellow Fever virus (YFV), affecting humans and non-human primates (NHP). YF is endemic in South America and Africa, being considered a burden for public health worldwide despite the availability of an effective vaccine. Acute infectious disease can progress to severe hemorrhagic conditions and has high rates of morbidity and mortality in endemic countries. In 2016, Brazil started experiencing one of the most significant YF epidemics in its history, with lots of deaths being reported in regions that were previously considered free of the disease. Here, we reviewed the historical aspects of YF in Brazil, the epidemiology of the disease, the challenges that remain in Brazil's public health context, the main lessons learned from the recent outbreaks, and our perspective for facing future YF epidemics.
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Affiliation(s)
- Poliana de Oliveira Figueiredo
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil; (P.d.O.F.); (J.S.d.O.); (C.D.A.); (J.S.A.); (E.G.K.); (B.P.D.)
| | - Ana Gabriella Stoffella-Dutra
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil; (P.d.O.F.); (J.S.d.O.); (C.D.A.); (J.S.A.); (E.G.K.); (B.P.D.)
| | - Galileu Barbosa Costa
- Laboratório de Patologia e Biologia Molecular, Instituto Gonçalo Moniz, Oswaldo Cruz Foundation, Rua Waldemar Falcão, 121, Candeal, Salvador Bahia 40296-710, Brazil
| | - Jaqueline Silva de Oliveira
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil; (P.d.O.F.); (J.S.d.O.); (C.D.A.); (J.S.A.); (E.G.K.); (B.P.D.)
| | - Carolina Dourado Amaral
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil; (P.d.O.F.); (J.S.d.O.); (C.D.A.); (J.S.A.); (E.G.K.); (B.P.D.)
| | - Juliane Duarte Santos
- Centro Integrado de Pesquisa em Saúde, Faculdade de Medicina, Universidade Federal dos Vales do Jequitinhonha e Mucuri Campus JK, Diamantina, Minas Gerais, Rodovia MGT 367, Km 583, nº 5.000 Alto da Jacuba 39100-000, Brazil; (J.D.S.); (K.L.S.R.); (D.B.d.O.)
| | - Kamila Lorene Soares Rocha
- Centro Integrado de Pesquisa em Saúde, Faculdade de Medicina, Universidade Federal dos Vales do Jequitinhonha e Mucuri Campus JK, Diamantina, Minas Gerais, Rodovia MGT 367, Km 583, nº 5.000 Alto da Jacuba 39100-000, Brazil; (J.D.S.); (K.L.S.R.); (D.B.d.O.)
| | - João Pessoa Araújo Júnior
- Departamento de Microbiologia e Imunologia, Institute of Biotechnology, Universidade Estadual Paulista Júlio de Mesquita Filho, Rio Claro, São Paulo Avenida 24A, 1515, Bela Vista 13506-900, Brazil;
| | - Maurício Lacerda Nogueira
- Laboratório de Pesquisas em Virologia, Departamento de Doenças Infecciosas e Parasitárias, Faculdade de Medicina de São José do Rio Preto, São José do Rio Preto, São Paulo 15090-000, Brazil;
| | - Magno Augusto Zazá Borges
- Centro de Ciências Biológicas e da Saúde, Universidade Estadual de Montes Claros, Montes Claros, Minas Gerais, Avenida Prof. Rui Braga, s/n, Vila Mauriceia 39408-354, Brazil;
| | - Adriano Pereira Paglia
- Laboratório de Ecologia e Conservação, Departamento de Biologia Geral, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil;
| | - Angelle Desiree LaBeaud
- Department of Pediatrics, Division of Infectious Diseases, Stanford University School of Medicine, 300 Pasteur Dr Rm G312 MC 5208, Stanford, CA 94305, USA;
| | - Jônatas Santos Abrahão
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil; (P.d.O.F.); (J.S.d.O.); (C.D.A.); (J.S.A.); (E.G.K.); (B.P.D.)
| | - Erna Geessien Kroon
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil; (P.d.O.F.); (J.S.d.O.); (C.D.A.); (J.S.A.); (E.G.K.); (B.P.D.)
| | - Danilo Bretas de Oliveira
- Centro Integrado de Pesquisa em Saúde, Faculdade de Medicina, Universidade Federal dos Vales do Jequitinhonha e Mucuri Campus JK, Diamantina, Minas Gerais, Rodovia MGT 367, Km 583, nº 5.000 Alto da Jacuba 39100-000, Brazil; (J.D.S.); (K.L.S.R.); (D.B.d.O.)
| | - Betânia Paiva Drumond
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil; (P.d.O.F.); (J.S.d.O.); (C.D.A.); (J.S.A.); (E.G.K.); (B.P.D.)
| | - Giliane de Souza Trindade
- Laboratório de Vírus, Departamento de Microbiologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901, Brazil; (P.d.O.F.); (J.S.d.O.); (C.D.A.); (J.S.A.); (E.G.K.); (B.P.D.)
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Absence of YF-neutralizing antibodies in vulnerable populations of Brazil: A warning for epidemiological surveillance and the potential risks for future outbreaks. Vaccine 2020; 38:6592-6599. [PMID: 32788140 DOI: 10.1016/j.vaccine.2020.07.077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 07/30/2020] [Accepted: 07/31/2020] [Indexed: 01/13/2023]
Abstract
Yellow Fever (YF) is an acute febrile illness caused by yellow fever virus (YFV), a mosquito-borne flavivirus transmitted to humans and non-human primates. In Brazil, YF is a public health threat and may cause recurrent epidemics, even with the availability of a vaccine. We evaluated the sero-status for YFV in 581 individuals living in a risk area for YF in Brazil. The area presents history of cases and is located in the southeast region of country where outbreaks of YF have been reported since 2016. Through, a PRNT assay, we found 25.8% of individuals lacking YF-neutralizing antibodies. Furthermore, neutralizing antibodies were not detected in 10 individuals with proven vaccination. Our findings reinforce the importance of surveillance systems and the need of an urgent intensification of immunization programs in regions with YFV circulation. Monitoring susceptible individuals that could act as potential disseminators for YFV in risk areas should also be considered.
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Nasir A, Shaukat K, Hameed IA, Luo S, Alam TM, Iqbal F. A Bibliometric Analysis of Corona Pandemic in Social Sciences: A Review of Influential Aspects and Conceptual Structure. IEEE ACCESS : PRACTICAL INNOVATIONS, OPEN SOLUTIONS 2020; 8:133377-133402. [PMID: 34812340 PMCID: PMC8545329 DOI: 10.1109/access.2020.3008733] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 07/06/2020] [Indexed: 05/07/2023]
Abstract
Corona pandemic has affected the whole world, and it is a highly researched area in biological sciences. As the current pandemic has affected countries socially and economically, the purpose of this bibliometric analysis is to provide a holistic review of the corona pandemic in the field of social sciences. This study aims to highlight significant, influential aspects, research streams, and themes. We have reviewed 395 journal articles related to coronavirus in the field of social sciences from 2003 to 2020. We have deployed 'biblioshiny' a web-interface of the 'bibliometrix 3.0' package of R-studio to conduct bibliometric analysis and visualization. In the field of social sciences, we have reported influential aspects of coronavirus literature. We have found that the 'Morbidity and Mortality Weekly Report' is the top journal. The core article of coronavirus literature is 'Guidelines for preventing health-care-associated pneumonia'. The most commonly used word, in titles, abstracts, author's keywords, and keywords plus, is 'SARS'. Top affiliation is 'The University of Hong Kong'. Hong Kong is a leading country based on citations, and the USA is on top based on total publications. We have used a conceptual framework to identify potential research streams and themes in coronavirus literature. Four research streams are found by deploying a co-occurrence network. These research streams are 'Social and economic effects of epidemic disease', 'Infectious disease calamities and control', 'Outbreak of COVID 19,' and 'Infectious diseases and the role of international organizations'. Finally, a thematic map is used to provide a holistic understanding by dividing significant themes into basic or transversal, emerging or declining, motor, highly developed, but isolated themes. These themes and subthemes have proposed future directions and critical areas of research.
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Affiliation(s)
- Adeel Nasir
- Department of Management SciencesLahore College for Women UniversityLahore54000Pakistan
| | - Kamran Shaukat
- School of Electrical Engineering and ComputingThe University of NewcastleCallaghanNSW2308Australia
- Punjab University College of Information Technology, University of the PunjabLahore54590Pakistan
| | - Ibrahim A. Hameed
- Department of ICT and Natural SciencesNorwegian University of Science and Technology7491TrondheimNorway
| | - Suhuai Luo
- School of Electrical Engineering and ComputingThe University of NewcastleCallaghanNSW2308Australia
| | - Talha Mahboob Alam
- Department of Computer ScienceUniversity of Engineering and TechnologyLahore54890Pakistan
| | - Farhat Iqbal
- Punjab University College of Information Technology, University of the PunjabLahore54590Pakistan
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Babatunde S, Oloruntoba R, Agho K. Healthcare commodities for emergencies in Africa: review of logistics models, suggested model and research agenda. JOURNAL OF HUMANITARIAN LOGISTICS AND SUPPLY CHAIN MANAGEMENT 2020. [DOI: 10.1108/jhlscm-09-2019-0064] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
PurposeEnormous numbers of people suffer from the effects of disasters and humanitarian crises in Africa, including medical and healthcare emergencies. International response to the 2014–2016 Ebola pandemic in West Africa and COVID 19 pandemic vividly demonstrates the need for efficient and effective logistics and supply chain systems in bringing succor to impacted and vulnerable communities. This paper critically reviews the academic literature on logistics models for sourcing, delivery and distribution of medical and healthcare products for humanitarian emergencies in Africa from 1990 to 2018. The paper suggests areas for further research and proposes an effective logistics model useful for international and national humanitarian organizations as well as public health authorities in Africa and developing areas.Design/methodology/approachThe viewpoint paper draws upon a structured comprehensive and critical review of the academic literature on logistics and supply chain management and a qualitative analysis of the literature in 13 leading academic databases covering over 5,550 articles.FindingsThe paper finds significant gaps in the body of logistics and supply chain management research on practical deployable logistics models for sourcing, delivery, and distribution of medical and healthcare products for humanitarian emergencies. The paper suggests a model worthy of consideration by humanitarian and disaster response stakeholders as well as public health authorities in developing countries.Research limitations/implicationsThis is a critical literature review paper based on a comprehensive literature research and analysis for the period from 1990 to 2018 from which a viewpoint is formed.Social implicationsThis paper advocates for further research on appropriate models of logistics for the sourcing, delivery and distribution of medical and healthcare products to enhance the basic human rights and dignity of vulnerable people in developing countries.Originality/valueThe paper contributes directly to policy on logistics, humanitarian aid, disaster management, public health and health security policy in the developing world including Africa.
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Nyaruaba R, Mwaliko C, Mwau M, Mousa S, Wei H. Arboviruses in the East African Community partner states: a review of medically important mosquito-borne Arboviruses. Pathog Glob Health 2019; 113:209-228. [PMID: 31664886 PMCID: PMC6882432 DOI: 10.1080/20477724.2019.1678939] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Mosquito-borne diseases, including arbovirus-related diseases, make up a large proportion of infectious disease cases worldwide, causing a serious global public health burden with over 700,000 deaths annually. Mosquito-borne arbovirus outbreaks can range from global to regional. In the East African Community (EAC) region, these viruses have caused a series of emerging and reemerging infectious disease outbreaks. Member states in the EAC share a lot in common including regional trade and transport, some of the factors highlighted to be the cause of mosquito-borne arbovirus disease outbreaks worldwide. In this review, characteristics of 24 mosquito-borne arboviruses indigenous to the EAC are reviewed, including lesser or poorly understood viruses, like Batai virus (BATV) and Ndumu virus (NDUV), which may escape their origins under perfect conditions to establish a foothold in new geographical locations. Factors that may influence the future spread of these viruses within the EAC are addressed. With the continued development observed in the EAC, strategies should be developed by the Community in improving mosquito and mosquito-borne arbovirus surveillance to prevent future outbreaks.
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Affiliation(s)
- Raphael Nyaruaba
- Key Laboratory of Special Pathogens and Biosafety, Center for Emerging Infectious Diseases, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, Hubei, China
- International college, University of Chinese Academy of Sciences, Beijing, China
| | - Caroline Mwaliko
- Key Laboratory of Special Pathogens and Biosafety, Center for Emerging Infectious Diseases, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, Hubei, China
- International college, University of Chinese Academy of Sciences, Beijing, China
| | - Matilu Mwau
- Center for Infectious and Parasitic Diseases Control Research, Kenya Medical Research Institute, Busia, Kenya
| | - Samar Mousa
- Key Laboratory of Special Pathogens and Biosafety, Center for Emerging Infectious Diseases, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, Hubei, China
- International college, University of Chinese Academy of Sciences, Beijing, China
| | - Hongping Wei
- Key Laboratory of Special Pathogens and Biosafety, Center for Emerging Infectious Diseases, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, Hubei, China
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Using Twitter for Public Health Surveillance from Monitoring and Prediction to Public Response. DATA 2018. [DOI: 10.3390/data4010006] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Twitter is a social media platform where over 500 million people worldwide publish their ideas and discuss diverse topics, including their health conditions and public health events. Twitter has proved to be an important source of health-related information on the Internet, given the amount of information that is shared by both citizens and official sources. Twitter provides researchers with a real-time source of public health information on a global scale, and can be very important in public health research. Classifying Twitter data into topics or categories is helpful to better understand how users react and communicate. A literature review is presented on the use of mining Twitter data or similar short-text datasets for public health applications. Each method is analyzed for ways to use Twitter data in public health surveillance. Papers in which Twitter content was classified according to users or tweets for better surveillance of public health were selected for review. Only papers published between 2010–2017 were considered. The reviewed publications are distinguished by the methods that were used to categorize the Twitter content in different ways. While comparing studies is difficult due to the number of different methods that have been used for applying Twitter and interpreting data, this state-of-the-art review demonstrates the vast potential of utilizing Twitter for public health surveillance purposes.
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Cakar F, Zingl FG, Schild S. Silence is golden: gene silencing of V. cholerae during intestinal colonization delivers new aspects to the acid tolerance response. Gut Microbes 2018; 10:228-234. [PMID: 30110191 PMCID: PMC6546326 DOI: 10.1080/19490976.2018.1502538] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 06/20/2018] [Accepted: 07/09/2018] [Indexed: 02/03/2023] Open
Abstract
Bacterial pathogens of the gastrointestinal tract alter their expression profile upon ingestion by the host and activate a variety of factors enhancing colonization and virulence. However, gene silencing during infection might be as important as gene activation to achieve full colonization fitness. Thus, we developed and successfully applied a reporter technology to identify 101 in vivo repressed (ivr) genes of the bacterial pathogen Vibrio cholerae. In depth analysis of the in vivo repressed H+/Cl- transporter ClcA revealed an inverse requirement along gastrointestinal colonization. ClcA could be linked to acid tolerance response required during stomach passage, but ClcA expression is detrimental during subsequent colonization of the lower intestinal tract as it exploits the proton-motive force in alkaline environments. The study summarized in this addendum demonstrates that constitutive expression of ivr genes can reduce intestinal colonization fitness of V. cholerae, highlighting the necessity to downregulate these genes in vivo.
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Affiliation(s)
- Fatih Cakar
- Institute of Molecular Biosciences, University of Graz, Graz, Austria
| | - Franz G. Zingl
- Institute of Molecular Biosciences, University of Graz, Graz, Austria
| | - Stefan Schild
- Institute of Molecular Biosciences, University of Graz, Graz, Austria
- BioTechMed-Graz, Austria
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Tappero JW, Cassell CH, Bunnell RE, Angulo FJ, Craig A, Pesik N, Dahl BA, Ijaz K, Jafari H, Martin R. US Centers for Disease Control and Prevention and Its Partners' Contributions to Global Health Security. Emerg Infect Dis 2018; 23. [PMID: 29155656 PMCID: PMC5711315 DOI: 10.3201/eid2313.170946] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
To achieve compliance with the revised World Health Organization International Health Regulations (IHR 2005), countries must be able to rapidly prevent, detect, and respond to public health threats. Most nations, however, remain unprepared to manage and control complex health emergencies, whether due to natural disasters, emerging infectious disease outbreaks, or the inadvertent or intentional release of highly pathogenic organisms. The US Centers for Disease Control and Prevention (CDC) works with countries and partners to build and strengthen global health security preparedness so they can quickly respond to public health crises. This report highlights selected CDC global health protection platform accomplishments that help mitigate global health threats and build core, cross-cutting capacity to identify and contain disease outbreaks at their source. CDC contributions support country efforts to achieve IHR 2005 compliance, contribute to the international framework for countering infectious disease crises, and enhance health security for Americans and populations around the world.
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Cornel AJ, Lee Y, Almeida APG, Johnson T, Mouatcho J, Venter M, de Jager C, Braack L. Mosquito community composition in South Africa and some neighboring countries. Parasit Vectors 2018; 11:331. [PMID: 29859109 PMCID: PMC5984792 DOI: 10.1186/s13071-018-2824-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 03/28/2018] [Indexed: 11/25/2022] Open
Abstract
Background A century of studies have described particular aspects of relatively few mosquito species in southern Africa, mostly those species involved with disease transmission, specifically malaria and arboviruses. Patterns of community composition such as mosquito abundance and species diversity are often useful measures for medical entomologists to guide broader insights and projections regarding disease dynamics and potential introduction, spread or maintenance of globally spreading pathogens. However, little research has addressed these indicators in southern Africa. Results We collected 7882 mosquitoes from net and light traps at 11 localities comprising 66 species in 8 genera. We collected an additional 8 species using supplementary collection techniques such as larval sampling, sweep-netting and indoor pyrethrum knockdown catches. Highest diversity and species richness was found in the Okavango Delta of Botswana and in South Africa’s Kruger National Park, while the lowest diversity and abundances were in the extreme southern tip of South Africa and in semi-desert Kalahari close to the South Africa border with Botswana. Species composition was more similar between proximal localities than distant ones (Linear model P-value = 0.005). Multiple arbovirus vector species were detected in all localities we surveyed (proportion of vector mosquito numbers were > 0.5 in all locations except Shingwedzi). Their proportions were highest (> 90%) in Vilankulo and Kogelberg. Conclusions Multiple known arbovirus vector species were found in all study sites, whereas anopheline human malaria vector species in only some sites. The combination of net traps and light traps effectively sampled mosquito species attracted to carbon-dioxide or light, accounting for 89% of the 74 species collected. The 11% remaining species were collected using supplementary collection techniques mentioned above. The diversity of species weas highest in savanna type habitats, whereas low diversities were found in the drier Kalahari sands regions and the southern Cape fynbos regions. Electronic supplementary material The online version of this article (10.1186/s13071-018-2824-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Anthony J Cornel
- Department of Entomology & Nematology, University of California, Davis, USA. .,UP Institute for Sustainable Malaria Control & MRC Collaborating Centre for Malaria Research, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa.
| | - Yoosook Lee
- Department of Entomology & Nematology, University of California, Davis, USA
| | - António Paulo Gouveia Almeida
- Global Health and Tropical Medicine, GHTM, Institute for Hygiene and Tropical Medicine, IHMT, Universidade Nova de Lisboa, UNL, Lisbon, Portugal.,Centre for Viral Zoonoses, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Todd Johnson
- Centre for Viral Zoonoses, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Joel Mouatcho
- UP Institute for Sustainable Malaria Control & MRC Collaborating Centre for Malaria Research, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Marietjie Venter
- Centre for Viral Zoonoses, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Christiaan de Jager
- UP Institute for Sustainable Malaria Control & MRC Collaborating Centre for Malaria Research, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Leo Braack
- UP Institute for Sustainable Malaria Control & MRC Collaborating Centre for Malaria Research, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
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Zhang D, Lin G, Zhang K, Yi L, Zhang R, Xie J, Li J. Implications of and lessons learned from external assurance of eight influenza diagnostics in China. Virus Res 2018; 249:110-115. [PMID: 29608994 DOI: 10.1016/j.virusres.2018.03.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 02/19/2018] [Accepted: 03/29/2018] [Indexed: 11/16/2022]
Abstract
This study evaluated the ability of laboratories in the Chinese mainland to conduct molecular detection of seasonal A(H1N1), A(H1N1)pdm09, A(H3N2), A(H5N1), A(H7N9), A(H9N2), B(Victoria), and B(Yamagata). Based on a genetically engineered system of virus-like particles (VLPs), the National Center for Clinical Laboratories of China (NCCLs) developed an external quality assessment (EQA) panel. The panel was distributed to 35 laboratories in mainland China to investigate the proficiency of the 16 assays for influenza molecular detection. Using genetic engineering technology, VLPs encapsulating the 37 target genes of 8 influenza viruses were generated. After verification and quantification, 26 influenza virus surrogates with different concentrations were prepared for EQA. Among the 35 participating laboratories, 319 datasets were returned to the NCCLs. Overall, 95.6% (305/319) of datasets correctly reported all 30 samples, while 2.2% (7/319) of datasets with more than one incorrect result were considered as "improvable". A total of 16 misdiagnosed and 18 undiagnosed results were reported. The data analyzed in this study showed good reproducibility in China, but improvements are needed to decrease misdiagnosed and undiagnosed cases, particularly for the A(H9N2) NA gene. Moreover, VLPs are a good alternative specimen type for assay training and proficiency testing purposes.
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Affiliation(s)
- Dong Zhang
- National Center for Clinical Laboratories, Beijing Hospital, Beijing, People's Republic of China; Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, People's Republic of China; Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences, National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, Beijing, People's Republic of China
| | - Guigao Lin
- National Center for Clinical Laboratories, Beijing Hospital, Beijing, People's Republic of China; Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, People's Republic of China
| | - Kuo Zhang
- National Center for Clinical Laboratories, Beijing Hospital, Beijing, People's Republic of China; Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, People's Republic of China
| | - Lang Yi
- National Center for Clinical Laboratories, Beijing Hospital, Beijing, People's Republic of China; Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, People's Republic of China
| | - Rui Zhang
- National Center for Clinical Laboratories, Beijing Hospital, Beijing, People's Republic of China; Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, People's Republic of China
| | - Jiehong Xie
- National Center for Clinical Laboratories, Beijing Hospital, Beijing, People's Republic of China; Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, People's Republic of China
| | - Jinming Li
- National Center for Clinical Laboratories, Beijing Hospital, Beijing, People's Republic of China; Beijing Engineering Research Center of Laboratory Medicine, Beijing Hospital, Beijing, People's Republic of China; Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences, National Center for Clinical Laboratories, Beijing Hospital, National Center of Gerontology, Beijing, People's Republic of China.
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Braack L, Gouveia de Almeida AP, Cornel AJ, Swanepoel R, de Jager C. Mosquito-borne arboviruses of African origin: review of key viruses and vectors. Parasit Vectors 2018; 11:29. [PMID: 29316963 PMCID: PMC5759361 DOI: 10.1186/s13071-017-2559-9] [Citation(s) in RCA: 138] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Accepted: 11/27/2017] [Indexed: 12/28/2022] Open
Abstract
Key aspects of 36 mosquito-borne arboviruses indigenous to Africa are summarized, including lesser or poorly-known viruses which, like Zika, may have the potential to escape current sylvatic cycling to achieve greater geographical distribution and medical importance. Major vectors are indicated as well as reservoir hosts, where known. A series of current and future risk factors is addressed. It is apparent that Africa has been the source of most of the major mosquito-borne viruses of medical importance that currently constitute serious global public health threats, but that there are several other viruses with potential for international challenge. The conclusion reached is that increased human population growth in decades ahead coupled with increased international travel and trade is likely to sustain and increase the threat of further geographical spread of current and new arboviral disease.
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Affiliation(s)
- Leo Braack
- School of Health Systems & Public Health, University of Pretoria, Pretoria, South Africa.
| | - A Paulo Gouveia de Almeida
- Instituto de Higiene e Medicina Tropical, Universidade Nova de Lisboa, Lisbon, Portugal.,Department of Medical Virology, University of Pretoria, Pretoria, South Africa
| | - Anthony J Cornel
- School of Health Systems & Public Health, University of Pretoria, Pretoria, South Africa.,Department of Entomology and Nematology, Mosquito Control Research Laboratory, Kearney Agricultural Center, UC Davis, Parlier, CA, USA
| | - Robert Swanepoel
- Department of Veterinary Tropical Diseases, University of Pretoria, Pretoria, South Africa
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Tappero JW, Cassell CH, Bunnell RE, Angulo FJ, Craig A, Pesik N, Dahl BA, Ijaz K, Jafari H, Martin R. US Centers for Disease Control and Prevention and Its Partners’ Contributions to Global Health Security. Emerg Infect Dis 2017. [DOI: 10.3201/eid23s1.170946] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
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