CHONG KC, Wang X, Liu S, Cai J, et al. Interpreting the transmissibility of the avian influenza A(H7N9) infection from 2013 to 2015 in Zhejiang Province, China. Epidemiol Infect. 2015 Dec 9:1-8.
Three epidemic waves of human influenza A(H7N9) were documented in several different provinces in China between 2013 and 2015. With limited understanding of the potential for human-to-human transmission, it was difficult to implement control measures efficiently or to inform the public adequately about the application of interventions. In this study, the human-to-human transmission rate for the epidemics that occurred between 2013 and 2015 in Zhejiang Province, China, was analysed. The reproduction number (R), a key indicator of transmission intensity, was estimated by fitting the number of infections from poultry to humans and from humans to humans into a mathematical model. The posterior mean R for human-to-human transmission was estimated to be 0·27, with a 95% credible interval of 0·14-0·44 for the first wave, whereas the posterior mean Rs decreased to 0·15 in the second and third waves. Overall, these estimates indicate that a human H7N9 pandemic is unlikely to occur in Zhejiang. The reductions in the viral transmissibility and the number of poultry-transmitted infections after the first epidemic may be attributable to the various intervention measures taken, including changes in the extent of closures of live poultry markets
See Also:
Latest articles in those days:
- Molecular characterization of influenza virus circulating in Nepal in the year 2019 9 minute(s) ago
- Seasonal antigenic prediction of influenza A H3N2 using machine learning 10 minute(s) ago
- Probable extinction of influenza B/Yamagata and its public health implications: a systematic literature review and assessment of global surveillance databases 29 minute(s) ago
- Code to reproduce analysis in Nguyen et al, Emergence and interstate spread of highly pathogenic avian influenza A (H5N1) in dairy cattle. 11 hours ago
- Pigs are highly susceptible to but do not transmit mink-derived highly pathogenic avian influenza virus H5N1 clade 2.3.4.4b 11 hours ago
[Go Top] [Close Window]