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Yin Z, Wen T, Fang Q, Zheng C, Gong X, Li J, Wang S, Xiang Z. Assessment of mumps-containing vaccine effectiveness by dose during 2006 to 2020 in Quzhou, China. Hum Vaccin Immunother 2022; 18:2086774. [PMID: 35675040 PMCID: PMC9621056 DOI: 10.1080/21645515.2022.2086774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 06/03/2022] [Indexed: 11/21/2022] Open
Abstract
Mumps cases were reported frequently when a routine dose measles-mumps-rubella(MMR) achieved high coverage in Quzhou. The supplementary immunization activities (SIA) using measles mumps (MM) was conducted to control mumps outbreaks. The effectiveness of one and two doses of mumps-containing vaccine (MuCV) was assessed using surveillance data in this study. Mumps cases and immunization information were retrieved from the National Notifiable Disease Reporting System (NNDRS) and the Zhejiang Provincial Immunization Information System (ZJIIS), respectively. Mumps cases of children born from 2006 to 2010 were included. Vaccine effectiveness by dose was calculated using the screening method. A total of 956 mumps cases were identified, of whom 754 (78.9%) had received one dose of MuCV; 108 (11.3%) had received two doses; 94 (9.8%) were unvaccinated. The coverage of one-dose MuCV in the 2006-2010 birth cohorts ranged from 91.6% to 98.9%. Except the 2009 birth cohort in which the coverage of two doses of MuCV was 55.1%, the others were less than 10%. Vaccine effectiveness (VE) of one dose ranged from 47.4% to 86.0%, while VE of two doses ranged from 64.0% to 92.4%. The VE of one and two doses of MuCV waned over time, but the VE of two doses was consistently higher than that of one dose in the same period. The vaccine schedule with two-dose MMR should be implemented among children in Quzhou. The optimal age for the second dose needs to be further evaluated.
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Affiliation(s)
- Zhiying Yin
- Department of Immunity, Quzhou Center for Disease Control and Prevention, Quzhou, Zhejiang Province, China
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, China
| | - Tingcui Wen
- School of Public Health, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, China
| | - Quanjun Fang
- Department of Immunity, Quzhou Center for Disease Control and Prevention, Quzhou, Zhejiang Province, China
| | - Canjie Zheng
- Department of Immunity, Quzhou Center for Disease Control and Prevention, Quzhou, Zhejiang Province, China
| | - Xiaoying Gong
- Department of Immunity, Quzhou Center for Disease Control and Prevention, Quzhou, Zhejiang Province, China
| | - Junji Li
- Department of Immunity, Quzhou Center for Disease Control and Prevention, Quzhou, Zhejiang Province, China
| | - Shuangqing Wang
- Department of Immunity, Quzhou Center for Disease Control and Prevention, Quzhou, Zhejiang Province, China
| | - Ziling Xiang
- Department of Immunity, Quzhou Center for Disease Control and Prevention, Quzhou, Zhejiang Province, China
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A Multi-Age-Group Interrupted Time-Series Study for Evaluating the Effectiveness of National Expanded Program on Immunization on Mumps. Vaccines (Basel) 2022; 10:vaccines10101587. [PMID: 36298452 PMCID: PMC9610758 DOI: 10.3390/vaccines10101587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 09/18/2022] [Accepted: 09/19/2022] [Indexed: 11/16/2022] Open
Abstract
The national Expanded Program on Immunization (EPI) in China has covered vaccines for measles, mumps, and rubella, among children aged 18–24 months since September 2008. However, no previous studies have quantified the effectiveness of the EPI on mumps incidence. There are methodological challenges in assessing the effect of an intervention that targets a subpopulation but finally influences the whole population. In this study, monthly data on mumps incidence were collected in Guangzhou, China, during 2005–2019. We proposed a multi-age-group interrupted time-series design, setting the starting time of exerting effect separately for 14 different age groups. A mixed-effects quasi-Poisson regression was applied to analyze the effectiveness of the EPI on mumps incidence, after controlling for long-term and seasonal trends, and meteorological factors. The model also accounted for the first-order autocorrelation within each age group. Between-age-group correlations were expressed using the contact matrix of age groups. We found that 70,682 mumps cases were reported during 2005–2019, with an annual incidence rate of 37.91 cases per 100,000 population. The effect of EPI strengthened over time, resulting in a decrease in the incidence of mumps by 16.6% (EPI-associated excess risk% = −16.6%, 95% CI: −27.0% to −4.7%) in September 2009 to 40.1% (EPI-associated excess risk% = −40.1%, 95% CI: −46.1% to −33.3%) in September 2019. A reverse U-shape pattern was found in age-specific effect estimates, with the largest reduction of 129 cases per 100,000 population (95% CI: 14 to 1173) in those aged 4–5 years. The EPI is effective in reducing the mumps incidence in Guangzhou. The proposed modeling strategy can be applied for simultaneous assessment of the effectiveness of public health interventions across different age groups, with adequate adjustment for within- and between-group correlations.
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3
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Hoshina T, Kawase M, Watanabe S, Shibahara J, Kojiro M, Miyake T, Sakaguchi Y, Kajiwara Y, Kusuhara K. Trends in voluntary vaccination coverage in a Japanese city. Pediatr Int 2021; 63:1466-1471. [PMID: 33780596 DOI: 10.1111/ped.14712] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 03/18/2021] [Accepted: 03/26/2021] [Indexed: 11/25/2022]
Abstract
BACKGROUND Large numbers of patients with diseases preventable by voluntary vaccines have been reported in Japan. However, it is difficult to analyze the impact of voluntary vaccination on disease prevention, as governments do not aggregate the number of recipients of vaccines that are not included in the national immunization program. This study investigated the association between the coverage rates of two voluntary vaccines (rotavirus and mumps vaccines) and the incidence of the diseases preventable by these vaccines. METHODS We performed a prospective questionnaire-based observational study to investigate the presumptive coverage rates of the rotavirus vaccine in infancy and the mumps vaccine at 1 year of age in Kitakyushu City from 2015 to 2018. The number of children admitted to a secondary medical institution for rotavirus-associated gastroenteritis and the incidence of mumps infection in sentinel medical institutions were also analyzed during the investigation period. RESULTS The rotavirus and mumps vaccine coverage rates since 2016 were 61-63% and late 28-30%, respectively (52.6% and 20.3% in 2015, respectively). The yearly number of children hospitalized for rotavirus-associated gastroenteritis from 2015 to 2018 declined by 41.4% compared with that during the pre-vaccination period (2009-2011). The incidence of mumps infection remained unchanged during the investigation period. CONCLUSION The coverage rates of two voluntary vaccines were not high enough to control the infections. The incorporation of voluntary vaccines into the routine immunization program should be considered as the one of the effective ways to increase vaccination coverage.
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Affiliation(s)
- Takayuki Hoshina
- Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
| | - Mayumi Kawase
- Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan.,Department of Pediatrics, Kitakyushu General Hospital, Kitakyushu, Japan
| | - Shunsuke Watanabe
- Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan.,Department of Pediatrics, Kitakyushu General Hospital, Kitakyushu, Japan
| | - Junpei Shibahara
- Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan.,Department of Pediatrics, Kitakyushu General Hospital, Kitakyushu, Japan
| | - Masumi Kojiro
- Department of Pediatrics, Kitakyushu General Hospital, Kitakyushu, Japan
| | - Takumi Miyake
- Kitakyushu Society of Child Health, Kitakyushu, Japan.,Miyake Clinic, Kitakyushu, Japan
| | - Yusuke Sakaguchi
- Kitakyushu Society of Child Health, Kitakyushu, Japan.,Sakaguchi Children Clinic, Kitakyushu, Japan
| | - Yasuhiro Kajiwara
- Kitakyushu Society of Child Health, Kitakyushu, Japan.,Department of Pediatrics, Tobata General Hospital, Kitakyushu, Japan
| | - Koichi Kusuhara
- Department of Pediatrics, School of Medicine, University of Occupational and Environmental Health, Japan, Kitakyushu, Japan
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4
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Wang Q, Cheng X, Liu D, Chen C, Yao K. One single-center serological survey on measles, rubella and mumps antibody levels of people in Youyang, China. Hum Vaccin Immunother 2021; 17:4203-4209. [PMID: 34623932 DOI: 10.1080/21645515.2021.1924522] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
Although measles, rubella and mumps elimination had achieved great progress in recent years, outbreaks were still reported worldwide. Serological surveillance on the remaining susceptibility in the population is essential to evaluate the preventive policy, estimate the current risk of infection, and predict evolutions in the future. In this study, we aimed to investigate the prevalence of seropositivity of antibodies against measles, rubella and mumps in a population of all ages in Youyang, southwest China. A cross-sectional hospital-based study was conducted among 657 cases who attended to Youyang Hospital from Sep 2018 to Aug 2019. Sero IgG antibodies were measured by ELISA. No difference in the seropositivity of antibodies against measles, rubella and mumps was found between neither urban vs. rural, nor male vs. female. The overall seropositivity of anti-measles, rubella, mumps IgG antibodies was 81.1% (95% CI: 78.0-83.9), 65.9% (95% CI: 62.2-69.4) and 63.2% (95% CI: 59.4-66.8), respectively. The IgG seropositivity varied with age significantly. In this study, the seropositivity of antibodies against measles, rubella and mumps among the participants was insufficient in the population, especially among infants, teenagers and productive women, who were suggested to booster the immunity. To better control and eliminate measles, mumps and rubella-related diseases, nation-wide active laboratory-supported surveillance, outbreak investigation and revaccination for vulnerable population are needed.
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Affiliation(s)
- Qing Wang
- Key Laboratory of Major Diseases in Children, Ministry of Education, National Key Discipline of Pediatrics (Capital Medical University), Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Xiaoping Cheng
- Clinical Laboratory, Youyang County People's Hospital, Chongqing, China
| | - Dandan Liu
- Key Laboratory of Major Diseases in Children, Ministry of Education, National Key Discipline of Pediatrics (Capital Medical University), Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
| | - Changhui Chen
- Department of Pediatrics, Youyang County People's Hospital, Chongqing, China
| | - Kaihu Yao
- Key Laboratory of Major Diseases in Children, Ministry of Education, National Key Discipline of Pediatrics (Capital Medical University), Beijing Pediatric Research Institute, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing, China
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Liu Y, Xiong Y, Liang Y, Deng X, Hu Y, Hu R, Chen Q, Tang F, Wang Z, Sun X, Guo H, Zhang L, Zhu FC. Waning immunity and potential asymptomatic infection in 3-7 years old children who received one dose of measles-mumps-rubella vaccine: A 4-year prospective study. Vaccine 2021; 39:3509-3515. [PMID: 33994238 DOI: 10.1016/j.vaccine.2021.05.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 04/29/2021] [Accepted: 05/03/2021] [Indexed: 01/25/2023]
Abstract
BACKGROUND Mumps outbreaks in adolescents who received two doses of measles-mumps-rubella vaccine (MMR) during childhood have been reported worldwide. In China, one dose of MMR administered in children aged among 18-24 months has a limited effect on the mumps epidemic. There are limited prospective studies evaluating the mumps immunity profile of children aged 3-7 years who received one dose of MMR. This study aimed to describe mumps immunity profile over a span of 4-years in kindergarten and primary school children. METHODS An observational, prospective study on one-dose MMR in children aged 3-7 years who underwent blood sample collection in 2015, 2016, and 2018 was conducted from 2015 to 2018. The seropositivity and geometric mean concentration of mumps IgG antibodies over time were analyzed. RESULTS A total of 3346 eligible children aged 3-7 years who underwent three rounds of blood sample collection were included. The overall seropositivity (79.6%) in 2015 was significantly higher than those recorded in 2016 (73.1%) and 2018 (71.4%). Approximately 11.6-15.9% of the participants were seropositive for mumps in 2015, and converted to negative in 2016. Meanwhile, 11.1-14.6% of the participants were seropositive for mumps in 2016, and the results converted to negative in 2018. Over 6.1-7.4% of the participants had asymptomatic infection from 2015 to 2016, while 9.0-9.9% of the participants were infected without clinical symptoms from 2016 to 2018. CONCLUSIONS Kindergarten and primary school children who only received one dose of MMR were at higher risk of developing mumps. Waning immunity, seronegative conversion, and asymptomatic infection coexist in children who received one dose MMR. Determining the optimal age for administering the second dose of MMR in children should be prioritized to improve the control and prevention of mumps in China.
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Affiliation(s)
- Yuanbao Liu
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Department of Expanded Programme on Immunization, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - Yan Xiong
- Qinhuai District Center for Disease Control and Prevention, Nanjing 210029, China
| | - Yaqiong Liang
- Department of Expanded Programme on Immunization, Nanjing Center for Disease Control and Prevention, Nanjing 210009, China
| | - Xiuying Deng
- Department of Expanded Programme on Immunization, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - Ying Hu
- Department of Expanded Programme on Immunization, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - Ran Hu
- Department of Expanded Programme on Immunization, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - Qiang Chen
- Department of Expanded Programme on Immunization, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - Fenyang Tang
- Department of Expanded Programme on Immunization, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - Zhiguo Wang
- Department of Expanded Programme on Immunization, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - Xiang Sun
- Department of Expanded Programme on Immunization, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - Hongxiong Guo
- Department of Expanded Programme on Immunization, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - Lei Zhang
- Department of Expanded Programme on Immunization, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - Feng-Cai Zhu
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing 211166, China; Department of Expanded Programme on Immunization, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China.
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6
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Wu H, Wang F, Tang D, Han D. Mumps Orchitis: Clinical Aspects and Mechanisms. Front Immunol 2021; 12:582946. [PMID: 33815357 PMCID: PMC8013702 DOI: 10.3389/fimmu.2021.582946] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 03/04/2021] [Indexed: 12/12/2022] Open
Abstract
The causative agent of mumps is a single-stranded, non-segmented, negative sense RNA virus belonging to the Paramyxoviridae family. Besides the classic symptom of painfully swollen parotid salivary glands (parotitis) in mumps virus (MuV)-infected men, orchitis is the most common form of extra-salivary gland inflammation. Mumps orchitis frequently occurs in young adult men, and leads to pain and swelling of the testis. The administration of MuV vaccines in children has been proven highly effective in reducing the incidence of mumps. However, a recent global outbreak of mumps and the high rate of orchitis have recently been considered as threats to male fertility. The pathogenesis of mumps orchitis remains largely unclear due to lack of systematic clinical data analysis and animal models studies. The alarming increase in the incidence of mumps orchitis and the high risk of the male fertility have thus become a major health concern. Recent studies have revealed the mechanisms by which MuV-host cells interact and MuV infection induces inflammatory responses in testicular cells. In this mini-review, we highlight advances in our knowledge of the clinical aspects and possible mechanisms of mumps orchitis.
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Affiliation(s)
- Han Wu
- Department of Immunology, Shenzhen University School of Medicine, Shenzhen, China.,Institute of Basic Medical Sciences, School of Basic Medicine, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Fei Wang
- Institute of Basic Medical Sciences, School of Basic Medicine, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Dongdong Tang
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Daishu Han
- Institute of Basic Medical Sciences, School of Basic Medicine, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
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Development of Improved Mumps Vaccine Candidates by Mutating Viral mRNA Cap Methyltransferase Sites in the Large Polymerase Protein. Virol Sin 2020; 36:521-536. [PMID: 33284397 PMCID: PMC7719854 DOI: 10.1007/s12250-020-00326-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Accepted: 10/20/2020] [Indexed: 10/26/2022] Open
Abstract
Although a live attenuated vaccine is available for controlling mumps virus (MuV), mumps still outbreaks frequently worldwide. The attenuated MuV vaccine strain S79 is widely used in mumps vaccination in China, but still with many shortcomings, among which the most prominent are the side effects and decreased immunity. Therefore, there is a need to further improve the safety and efficacy of the current MuV vaccine. In the present study, we further attenuated MuV S79 vaccine strain by inhibiting viral mRNA methyltransferase (MTase). We generated a panel of eight recombinant MuVs (rMuVs) carrying mutations in the MTase catalytic site or S-adenosylmethionine (SAM) binding site in the large (L) polymerase protein. These rMuVs are genetically stable and seven rMuVs are more attenuated in replication in cell culture and five rMuVs are more attenuated in replication in lungs of cotton rats compared with the parental vaccine strain S79. Importantly, cotton rats vaccinated with these seven rMuV mutants produced high levels of serum neutralizing antibodies and were completely protected against challenge with a wild-type MuV strain (genotype F). Therefore, our results demonstrate that alteration in the MTase catalytic site or SAM binding site in MuV L protein improves the safety or the immunogenicity of the MuV vaccine and thus mRNA cap MTase may be an effective target for the development of new vaccine candidates for MuV.
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Zhou C, Song W, Yin Z, Li S, Gong X, Fang Q, Wang S. Assessing the Changes of Mumps Characteristics with Different Vaccination Strategies Using Surveillance Data: Importance to Introduce the 2-Dose Schedule in Quzhou of China. J Immunol Res 2020; 2020:8130760. [PMID: 32300606 PMCID: PMC7140127 DOI: 10.1155/2020/8130760] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2019] [Revised: 02/20/2020] [Accepted: 03/03/2020] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND From 2005 to 2016, the prevention and control of mumps in China have undergone three stages of transition. These include the use of MuCV as a self-supported vaccine, the introduction of one-dose MMR to the Expanded Program on Immunization (EPI), and the administration of two-dose MuCV following supplementary immunization activities (SIAs) using MM. Here, using surveillance data, we assessed the epidemiology of mumps during the three stages. METHODS Children in Quzhou of China born from 2005 to 2016 and registered in the Zhejiang Provincial Immunization Information System (ZJIIS) were included. We analyzed the epidemic data and calculated incidence and MuCV coverage via birth cohorts. RESULTS The average incidence of mumps in 2005-2006, 2007-2010, and 2011-2016 was 51.57, 41.02, and 12.53 per 100,000 individuals, respectively. The highest incidence was in children aged 6-14 years from 2005-2016, of which the majority were school students (67.84%). Approximately 90% of the reported outbreaks occurred in school children (primary school/middle school). The seasonal characteristics of mumps were less obvious from 2011 to 2016. The coverage of one-dose MMR in the 2005 birth cohort was 71.38%. For the 2006-2010 birth cohort, the coverage of one-dose MuCV was 96.82% and the coverage of two-dose MuCV was 17.68%. The children born from 2011 to 2016 were only free vaccinated with MMR; the coverage of one-dose MuCV was 99.10%. The mumps incidence in the three birth cohorts significantly declined (X 2 = 805.90, P < 0.001 for trend). Except the children less than two years old, the mumps incidence for the children born from 2006 to 2010 was higher than that for the children born from 2011 to 2016. CONCLUSION The mumps incidence significantly declined following the introduction of one-dose MMR. The SIA using MM led to a rapid reduction of mumps cases. Therefore, we recommend a two-dose MuCV routine immunization schedule and improved vaccination coverage.
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Affiliation(s)
- Chunting Zhou
- Women & Children Health Care Hospital of Quzhou, Quzhou, 324000 Zhejiang, China
| | - Wei Song
- Women & Children Health Care Hospital of Quzhou, Quzhou, 324000 Zhejiang, China
| | - Zhiying Yin
- Department of Immunization, Quzhou Center for Disease Control and Prevention, Quzhou, 324000 Zhejiang, China
| | - Sheng Li
- Women & Children Health Care Hospital of Quzhou, Quzhou, 324000 Zhejiang, China
| | - Xiaoying Gong
- Department of Immunization, Quzhou Center for Disease Control and Prevention, Quzhou, 324000 Zhejiang, China
| | - Quanjun Fang
- Department of Immunization, Quzhou Center for Disease Control and Prevention, Quzhou, 324000 Zhejiang, China
| | - Shuangqing Wang
- Department of Immunization, Quzhou Center for Disease Control and Prevention, Quzhou, 324000 Zhejiang, China
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Wu H, You E, Jiang C, Yang Y, Wang L, Niu Q, Lu X, Huang F. Effects of extreme meteorological factors on daily mumps cases in Hefei, China, during 2011-2016. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:4489-4501. [PMID: 31832956 DOI: 10.1007/s11356-019-07073-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Accepted: 11/14/2019] [Indexed: 06/10/2023]
Abstract
Mumps remains one of the worldwide major health problems over the past decade. Seasonal variations of mumps indicate that meteorological factors play an important role in the development of mumps, but few studies have investigated the relationship between extreme meteorological factors and the incidence of mumps. Daily mumps cases and meteorological factors in Hefei, China, from 2011 to 2016 were obtained. A generalized additive model combined with the distributed lag nonlinear model (DLNM) was used to quantify the risk of extreme meteorological factors on mumps incidence. Nonlinear relationships were observed among all meteorological factors and mumps incidence. We found that extremely low and high temperatures increased the risk of mumps. The relative risks (RRs) of the cumulative effects along 30 lag days were 2.02 (95%CI: 1.14-3.56) and 2.42 (95%CI: 1.37-4.24), respectively. Both short and long sunshine duration had negative correlation on mumps, with cumulative RRs of 0.64 (95%CI: 0.46-0.92) and 0.57 (95%CI: 0.44-0.74), respectively. In the subgroup analysis, males were found to be more sensitive to extreme weather, especially extreme temperatures and sunshine duration. This study suggests that extreme meteorological factors, especially extreme temperatures and sunshine duration, exert a significant impact on the incidence of mumps. When formulating and implementing effective strategies to the prevention and control of mumps, authorities should take the effect caused by extreme meteorological factors into consideration and pay more attention to susceptible populations, such as male children and teenagers.
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Affiliation(s)
- Huabing Wu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Shushan District, Hefei, 230032, Anhui, China
| | - Enqing You
- Hefei Center for Disease Control and Prevention, 86 Luan Road, Luyang District, Hefei, 230061, Anhui, China
| | - Chunxiao Jiang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Shushan District, Hefei, 230032, Anhui, China
| | - Yuwei Yang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Shushan District, Hefei, 230032, Anhui, China
| | - Ling Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Shushan District, Hefei, 230032, Anhui, China
| | - Qingshan Niu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Shushan District, Hefei, 230032, Anhui, China
| | - Xuelei Lu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Shushan District, Hefei, 230032, Anhui, China
| | - Fen Huang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Shushan District, Hefei, 230032, Anhui, China.
- Central Laboratory of Preventive Medicine, School of Public Health, Anhui Medical University, 81 Meishan Road, Shushan District, Hefei, 230032, Anhui, China.
- Laboratory for environmental Toxicology, Anhui Medical University, 81 Meishan Road, Shushan District, Hefei, 230032, Anhui, China.
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10
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Qin W, Wang Y, Yang T, Xu XK, Meng XM, Zhao CJ, Li SY, Xie SY, Li KC, Su H. Outbreak of mumps in a student population with high vaccination coverage in China: time for two-dose vaccination. Hum Vaccin Immunother 2019; 15:2106-2111. [PMID: 30779678 DOI: 10.1080/21645515.2019.1581526] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
Abstract
In 2016, an outbreak of mumps occurred in a primary school in China with a student population having high vaccination coverage. An unmatched case-control study was performed to identify risk factors contributing to this outbreak, and a retrospective cohort study was conducted to evaluate the effectiveness of mumps-containing vaccine (MuCV). A total of 97 cases were identified during the outbreak, and the overall attack rate was 8.2%. Among students with confirmed vaccination status, 90% had received at least one dose of MuCV. Cases were more likely than non-cases to report taking the school bus during the epidemic period (adjusted OR = 2.3, 95% CI: 1.4-3.7). Vaccine effectiveness (VE) was higher for two-dose MuCV (76%, 95% CI:49â€"89%) than for one-dose MuCV (59%, 95% CI: 36â€"74%. The protection afforded by both one-dose and two-dose MuCV waned over time, from 82% among students vaccinated within 5 years to 41% among those vaccinated more than 10 years previously for one-dose VE, and from 90% to 25% over the same time period for two-dose VE. We found that outbreaks of mumps can occur in schools despite high coverage of one-dose MuCV vaccination. Although the VE of both two-dose and one-dose MuCV wanes over time, the overall VE for two-dose MuCV was superior than that of one-dose MuCV. Therefore, a two-dose MuCV schedule through routine services is likely needed in order to control mumps epidemics in China.
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Affiliation(s)
- Wei Qin
- Department of Expanded Program on Immunization, Lu'an Municipal Center for Disease Control and Prevention , Lu'an , Anhui , China.,Chinese Field Epidemiology Training Program (CFETP), Chinese Center for Disease Control and Prevention , Beijing , China.,Department of Epidemiology and Health Statistics, School of Public Health, Anhui Medical University , Hefei , China
| | - Yao Wang
- Department of Expanded Program on Immunization, Lu'an Municipal Center for Disease Control and Prevention , Lu'an , Anhui , China
| | - Tao Yang
- Department of Expanded Program on Immunization, Lu'an Municipal Center for Disease Control and Prevention , Lu'an , Anhui , China
| | - Xiao-Kang Xu
- Department of Expanded Program on Immunization, Lu'an Municipal Center for Disease Control and Prevention , Lu'an , Anhui , China
| | - Xiang-Mei Meng
- Department of Expanded Program on Immunization, Lu'an Municipal Center for Disease Control and Prevention , Lu'an , Anhui , China
| | - Chang-Jun Zhao
- Department of Expanded Program on Immunization, Jin'an District Center for Disease Control and Prevention , Lu'an , Anhui , China
| | - Shao-Yi Li
- Department of Expanded Program on Immunization, Jin'an District Center for Disease Control and Prevention , Lu'an , Anhui , China
| | - Shao-Yu Xie
- Department of Expanded Program on Immunization, Lu'an Municipal Center for Disease Control and Prevention , Lu'an , Anhui , China
| | - Kai-Chun Li
- Department of Expanded Program on Immunization, Lu'an Municipal Center for Disease Control and Prevention , Lu'an , Anhui , China
| | - Hong Su
- Department of Epidemiology and Health Statistics, School of Public Health, Anhui Medical University , Hefei , China
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Impact of the MMR vaccine on the incidence of mumps in the Community of Madrid and evaluation of the effectiveness of the Jeryl-Lynn strain. Years 1998-2016. Med Clin (Barc) 2019; 153:276-280. [PMID: 30857795 DOI: 10.1016/j.medcli.2019.01.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 12/21/2018] [Accepted: 01/10/2019] [Indexed: 11/21/2022]
Abstract
INTRODUCTION Mumps is characterised by parotid inflammation and fever and is preventable by vaccination with MMR vaccine. The objective of the study is to assess the impact and effectiveness of the vaccine. MATERIAL AND METHODS Cases notified to the Notifiable Disease System between 1998 and 2016 were used for the study. The vaccine effectiveness (VE) was calculated in cohorts vaccinated with two doses of Jeryl-Lynn, and the impact was calculated by comparing incidences by age and by Rubini (1995-1998) and Jeryl-Lynn (1999-2002) cohorts during the periods 1998-2004, 2005-2009 and 2010-2015. The incidences for age group and period were compared with the previous period and the incidences for cohorts were compared within a period with incidence ratios (IR) using Poisson models. The VE was estimated using the screening method using logistic regression models. RESULTS 13,816 cases were reported. The incidence in 2005-2009 was higher than in 1998-2004 (IR: 1.46, 95% CI: 1.40-1.53), and it remained stable in 2010-2015 (IR: 0.99, 95% CI: 0.95-1.03). The average incidence rate of the Rubini cohort was 69.43 and the Jeryl-Lynn cohort was 32.24. The IR was 0.25 (95% CI: 0.22-0.29), 0.55 (95% CI: 0.49-0.61) and 0.88 (95% CI: 0.76-1.00) for each period respectively. 2,574 cases were included in the VE study. EV decreased over time reaching not significant values after seven years of follow-up (VE: 55%, 95% CI: 82 to -12%). CONCLUSIONS Parotiditis behavior is characterised by fluctuations, changes in presentation and a decrease in VE.
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Su QR, Yao KH. [Epidemiological and clinical features of vaccine-preventable diseases in vaccine era]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2019; 21:195-198. [PMID: 30907338 PMCID: PMC7389355 DOI: 10.7499/j.issn.1008-8830.2019.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 01/21/2019] [Indexed: 06/09/2023]
Abstract
In countries and regions with high vaccination coverage, several vaccine-preventable diseases have been resurged in recent years, such as measles, varicella, pertussis and mumps. Some studies have found that the clinical manifestation and epidemiological characteristics of these diseases were different from those in pre-vaccine era. This article reviewed the clinical and epidemiological features of vaccine-preventable diseases before and after wide immunization implementation, focusing on the situation in China, in order to attract the attention of clinicians, raise awareness, strengthen prevention and control, and promote in-depth research for these diseases.
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Affiliation(s)
- Qi-Ru Su
- Department of Pediatric Research Institute, Shenzhen Children's Hospital, Shenzhen, Guangdong 518038, China.
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Assessment of one-dose mumps-containing vaccine effectiveness on wild-type genotype F mumps viruses circulating in mainland China. Vaccine 2018; 36:5725-5731. [DOI: 10.1016/j.vaccine.2018.08.028] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 08/03/2018] [Accepted: 08/04/2018] [Indexed: 11/20/2022]
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