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SUMMARY:Epidemiology and control of COVID-19 in Hong Kong - Professor Benj
 amin Cowling\, School of Public Health\, University of Hong Kong
DTSTART:20220223T130000Z
DTEND:20220223T140000Z
UID:TALK170486@talks.cam.ac.uk
CONTACT:Paul Browne
DESCRIPTION:Click on the following link to register in advance for this fr
 ee online seminar:\n\nhttps://us02web.zoom.us/meeting/register/tZAkcOmqrzk
 pEtWuJN-8FVEKhOSq1s3t0gSw\n\nIn early 2020\, Hong Kong was one of the firs
 t-affected locations outside of mainland China. However\, in the first two
  years of the pandemic timely public health measures as part of a “Dynam
 ic Zero Covid” strategy were able to successfully control a number of su
 rges in daily case numbers\, restricting confirmed cases to well below 1% 
 of the population. Epidemiological analyses have improved our understandin
 g of disease dynamics and the impact of control measures. For example\, on
 e of the most interesting phenomena in transmission has been “super-spre
 ading”\, in which we have determined that a minority of infections are r
 esponsible for a majority of transmission events.\n\nIn recent work\, we h
 ave been examining how and why superspreading dynamics might vary over tim
 e. While mass vaccination provides a pathway back to a new normal in most 
 parts of the world\, the Hong Kong government has followed the strategy in
  mainland China of continuing “Dynamic Zero Covid” even when vaccine c
 overage reaches a high level. Our community studies provide evidence on le
 vels of infections and immunity\, and allow us to contrast the difference 
 in effectiveness of the inactivated vaccine (Sinovac) and the mRNA vaccine
  (BioNTech/Fosun Pharma/Pfizer) being used in Hong Kong
LOCATION: Webinar  (via Zoom online)
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