May

1. Serial intervals and case isolation delays for COVID-19: a systematic review and meta-analysis
   Clinical Infectious Diseases
   Ali S.T., Yeung A., Shan S., Wang L., Gao H., Du Z., Xu X., Wu P., Lau E.H.Y. and Cowling B.J.

2. Smoking and nasopharyngeal cancer: individual data meta-analysis of six prospective studies on 334 935 men
   International Journal of Epidemiology
   Lin JH, Wen CP, Jiang CQ, Yuan, Chen CJ, Ho SY, Gao WN, Zhang WX, Wang RW, Chien YC, Xu L, Wu XF, Jin YL, Koh WP, Hsu WL, Zhu F, Wen C, Zhu T, Lee JH, Mai ZM, Lung ML, Lam TH. 

3. Virology, transmission, and pathogenesis of SARS-CoV-2
   BMJ
   Cevik M, Kuppalli K, Kindrachuk J, Peiris M. 
4. Diagnostic performance of different sampling approaches for SARS-CoV-2 RT-PCR testing: a systematic review and meta-analysis
   The Lancet Infectious Diseases
   Tsang NNY, So HC, Ng KY, Cowling BJ, Leung GM, Ip DKM
5. Assessing asymptomatic, pre-symptomatic and symptomatic transmission risk of SARS-CoV-2
   Clinical Infectious Diseases
   Wu P., Liu F., Chang Z., Lin Y., Ren M., Zheng C., Li Y., Peng Z., Qin Y., Yu J., Geng M., Yang X., Zhao H., Li Z., Zhou S., Ran L., Cowling B.J., Lai S., Chen Q., Wang L., Tsang K.L.T. and Li Z.
6. Changing disparities in COVID-19 burden in the ethnically homogeneous population of Hong Kong through pandemic waves: an observational study
   Clinical Infectious Diseases
   Yang B, Wu P, Lau EHY, Wong JY, Ho F, Gao H, Xiao J, Adam DC, Ng TWY, Quan J, Tsang TK, Liao Q, Cowling BJ, Leung GM
7. Case fatality risk of the first pandemic wave of novel coronavirus disease 2019 (COVID-19) in China
   Clinical Infectious Diseases
   Deng X., Yang J., Wang W., Wang X., Zhou J., Chen Z., Li J., Chen Y., Yan H., Zhang J., Zhang Y., Wang Y., Qiu Q., Gong H., Wei X., Wang L., Sun K., Wu P., Ajelli M., Cowling B.J., Viboud C. and Yu H.

January –April

1. Long-term exposure to fine particulate matter and dementia incidence: A cohort study in Hong Kong
   Environmental Pollution
   Ran J., Schooling C.M., Han L., Sun S., Zhao S., Zhang X., Chan K.P., Guo F., Lee R.S., Qiu Y. and Tian L.

2. T-cell responses to MERS coronavirus infection in people with occupational exposure to dromedary camels in Nigeria: an observational cohort study
   Lancet Infectious Diseases
   Mok CKP, Zhu A, Zhao J, Lau EHY, Wang J, Chen Z, Zhuang Z, Wang Y, Alshukairi AN, Baharoon SA, Wang W, Tan W, Liang W, Oladipo JO, Perera RAPM, Kuranga SA, Peiris M, Zhao J. 

3. The transfer and decay of maternal antibodies against enterovirus A71, and dynamics of antibodies due to later natural infections in Chinese infants: a longitudinal, paired mother-neonate cohort study
   Lancet Infectious Diseases
   Wei X., Yang J., Gao L., Wang L., Liao Q., Qiu Q., Luo K., Yu S., Zhou Y., Liu F., Chen Q., Zhang J., Dai B., Yang H., Zhou J., Xing W., Chen X., He M., Ren L., Guo J., Luo L., Wu P., Chen Z., van Doorn H.R., Cauchemez S.T., Cowling B.J. and Yu H.

4. Comparative cost-effectiveness of SARS-CoV-2 testing strategies in the USA: a modelling study
   The Lancet Public Health
   Du Z., Pandey A., Bai Y., Fitzpatrick M.C., Chinazzi M., Pastore y Piontti A., Lachmann M., Vespignani A., Cowling B.J., Galvani A.P. and Meyers L.C.

5. Intra-host variation and evolutionary dynamics of SARS-CoV-2 population in COVID-19 patients
   Genome Medicine
   Wang Y., Wang D., Zhang L., Sun W., Zhang Z., Chen W., Zhu A., Huang Y., Xiao F., Yao J., Gan M., Li F., Luo L., Huang X., Zhang Y., Wong S.S., Cheng X., Ji J., Ou Z., Xiao M., Li M., Li J., Ren P., Deng Z., Zhong H., Xu X., Song T., Mok C.K.P., Peiris J.S.M., Zhong N., Zhao J., Li Y., Li J. and Zhao J.

6. Immunogenicity of standard, high-dose, MF59-adjuvanted, and recombinant-HA seasonal influenza vaccination in older adults
   NPJ Vaccines
   LI P.Y.A., Cohen C.A., Leung N.H.L., Fang J., Gangappa S., Sambhara S., Levine M.Z., Iuliano A.D., Perera R.A.P.M., Ip D.K.M., Peiris J.S.M., Thompson M.G., Cowling B.J. and Doak S.A.V.

7. Neutralizing antibody titres in SARS-CoV-2 infections
   Nature Communications
   Lau E.H.Y., Tsang O.T.Y., Hui D.S.C., Kwan M.Y.W., Chan W.H., Chiu S.S.S., Ko L.W.R., Chan K.H., Cheng M.S., Perera R.A.P.M., Cowling B.J., Poon L.M.L. and Peiris J.S.M.

1. The transfer and decay of maternal antibodies against enterovirus A71, and dynamics of antibodies due to later natural infections in Chinese infants: a longitudinal, paired mother–neonate cohort study
   The Lancet Infectious Diseases
   Wei X., Yang J., Gao L., Wang L., Liao Q., Qiu Q., Luo K., Yu S., Zhou Y., Liu F., Chen Q., Zhang J., Dai B., Yang H., Zhou J., Xing W., Chen X., He M., Ren L., Guo J., Luo L., Wu P., Chen Z., van Doorn H.R., Cauchemez S.T., Cowling B.J. and Yu H.
2. Clustering and superspreading potential of SARS-CoV-2 infections in Hong Kong
   Nature Medicine
   Adam D.C., Wu P., Wong Y.T., Lau E.H.Y., Tsang K.L.T., Cauchemez S.T., Leung G.M. and Cowling B.J.
3. Pathogenesis and transmission of SARS-CoV-2 in golden hamsters
   Nature
   Sia S.F., Yan L., Chin W.H., Fung H.Y.K., Choy K.T., Wong A.Y., Wong A.Y., Perera R.A.P.M., Poon L.M.L., Nicholls J.M., Peiris J.S.M. and Yen H.
4. Maternal antibodies against influenza in cord blood and protection against laboratory-confirmed influenza in infants
   Clinical Infectious Diseases
   Cowling B.J., Perera R.A.P.M., Fang J., Chu K.W., Hui P.W., Yeung A.P.C., Peiris J.S.M., Wong W.H.S., Shiu E.Y.C. and Chiu S.S.S.
5. Comparative immunogenicity of several enhanced influenza vaccine options for older adults: A randomized, controlled trial
   Clinical Infectious Diseases
   Cowling BJ, Perera RAPM, Valkenburg SA, Leung NHL, Iuliano AD, Tam YH, Wong JHF, Fang VJ, Li APY, So HC, Ip DKM, Azziz-Baumgartner E, Fry AM, Levine MZ, Gangappa S, Sambhara S, Barr IG, Skowronski DM, Peiris JSM, Thompson MG
6. ORF8 and ORF3b antibodies are accurate serological markers of early and late SARS-CoV-2 infection
   Nature Immunology
   Hachim A, Kavian N, Cohen CA, Chin AWH, Chu DKW, Mok CKP, Tsang OTY, Yeung YC, Perera RAPM, Poon LLM, Peiris JSM, Valkenburg SA
7. The impact of the Syrian conflict on population well-being
   Nature Communications
   Cheung F., Kube A., Tay L., Diener E., Jackson J.J., Lucas R.E., Ni M.Y. and Leung G.M.
8. Serial interval of SARS-CoV-2 was shortened over time by nonpharmaceutical interventions
   Science
   Ali ST, Wang L, Lau EHY, Xu XK, Du Z, Wu Y, Leung GM, Cowling BJ
9. Identifying SARS-CoV-2-related coronaviruses in Malayan pangolins
   Nature
   Lam TT, Shum MH, Zhu HC, Tong YG, Ni XB, Liao YS, Wei W, Cheung WY, Li WJ, Li LF, Leung GM, Holmes EC, Hu YL, Guan Y.
10. Evolving epidemiology and transmission dynamics of coronavirus disease 2019 outside Hubei province, China: a descriptive and modelling study
    The Lancet Infectious Diseases
    Zhang J., Litvinova M., Wang W., Wang Y., Deng X., Chen X., Li M., Zheng W., Yi L., Chen X., Wu Q., Liang Y., Wang X., Yang J., Sun K., Longini I.M., Halloran M.E., Wu P., Cowling B.J., Merler S., Viboud C., Vespignani A., Ajelli M. and Yu H.
11. Viral dynamics in mild and severe cases of COVID-19
    The Lancet Infectious Diseases
    Liu Y, Yan LM, Wan L, Xiang TX, Le A, Liu JM, Peiris M, Poon LLM, Zhang W.
12. First-wave COVID-19 transmissibility and severity in China outside Hubei after control measures, and second-wave scenario planning: a modelling impact assessment
    The Lancet
    Leung K, Wu JT, Liu D, Leung GM
13. A highly conserved cryptic epitope in the receptor binding domains of SARS-CoV-2 and SARS-CoV
    Science
    Yuan M, Wu NC, Zhu X, Lee CD, So RTY, Lv H, Mok CKP, Wilson IA.
14. Estimating clinical severity of COVID-19 from the transmission dynamics in Wuhan, China
    Nature Medicine
    Wu J.T.K., Leung S.M.K., Bushman M., Kishore N., Niehus R., de Salazar P.M., Cowling B.J., Lipsitch M. and Leung G.M.
15. Temporal dynamics in viral shedding and transmissibility of COVID-19
    Nature Medicine
    He X, Lau EHY, Wu P, Deng X, Wang J, Hao X, Lau YC, Wong JY, Guan Y, Tan X, Mo X, Chen Y, Liao B, Chen W, Hu F, Zhang Q, Zhong M, Wu Y, Zhao L, Zhang F, Cowling BJ, Li F, Leung GM
16. Respiratory virus shedding in exhaled breath and efficacy of face masks
    Nature Medicine
    Nancy H. L. Leung, Daniel K. W. Chu, Eunice Y. C. Shiu, Kwok-Hung Chan, James J. McDevitt, Benien J. P. Hau, Hui-Ling Yen, Yuguo Li, Dennis K. M. Ip, J. S. Malik Peiris, Wing-Hong Seto, Gabriel M. Leung, Donald K. Milton, Benjamin J. Cowling.
17. SARS-CoV-2 viral load in upper respiratory specimens of infected patients
    New England Journal of Medicine
    Zou L, Ruan F, Huang M, Liang L, Huang H, Hong Z, Yu J, Kang M, Song Y, Xia J, Guo Q, Song T, He J, Yen HL, Peiris JSM, Wu J.
18. Detection of influenza and other respiratory viruses in air sampled from a university campus: a longitudinal study
    Clinical Infectious Diseases
    Xie C., Lau E.H.Y., Yoshida T., Yu H., Wang X., Wu H., Wei J., Cowling B.J., Peiris J.S.M., Li Y. and Yen H.L.
19. Avian influenza virus detection rates in poultry and environment at live poultry markets, Guangdong, China
    Emerging Infectious Diseases
    Cheng K.L., Wu J., Shen W.L., Wong A.Y.L., Guo Q., Yu J., Zhuang X., Su W., Song T., Peiris J.S.M., Yen H.L. and Lau E.H.Y.
20. Early transmission dynamics in Wuhan, China, of novel coronavirus–infected pneumonia
    New England Journal of Medicine
    Li Q.., Guan X., Wu P., Wang X., Zhou L., Tong Y., Ren R., Leung S.M.K., Lau E.H.Y., Wong Y.T., Xing X., Xiang N., Wu Y., Li C., Chen Q., Li D., Liu T., Zhao J.I.N.G., Liu M., Tu W., Chen C., Jin L., Yang R., Wang Q., Zhou S., Wang R., Liu H., Luo Y., Liu Y., Shao G., Li H., Tao Z., Yang Y., Deng Z., Liu B., Ma Z., Zhang Y., Shi G., Lam T.Y., Wu J.T.K., Gao G.F., Cowling B.J., Yang B., Leung G.M. and Feng Z.
21. Nowcasting and forecasting the potential domestic and international spread of the 2019-nCoV outbreak originating in Wuhan, China: a modelling study
    The Lancet
    Wu JT, Leung K, Leung GM
22. Depression and post-traumatic stress during major social unrest in Hong Kong: a 10-year prospective cohort study
    The Lancet
    Ni M.Y., Yao X., Leung S.M.K., Yau C.Y.S., Leung M.C., Lun K.Y.P., Flores F.P.C., Chang W.C., Cowling B.J. and Leung G.M.
23. The association of early-life exposure to air pollution with lung function at ~17.5 years in the “Children of 1997” Hong Kong Chinese Birth Cohort
    Environment International
    He B., Huang J., Kwok M.K., Au Yeung S.L.R., Hui L.L., Li A.M., Leung G.M. and Schooling C.M.