Correspondence, Feb 27:
Secondary attack rate and superspreading events for SARS-CoV-2
Yang Liu, Rosalind M. Eggo, Adam J. Kucharchi
“If transmission is stratified by contacts within and outside of the household, the relationship between R0 and household risk is: R0=SARHNH + SARCNC, where SARH and SARC are the secondary attack rates within household and wider community (ie, outside household), respectively, and NH and NC are the numbers of at-risk contacts made, respectively.3 An infection with a high household SAR but a modest R0 would therefore suggest transmission is driven by a relatively small number of high-risk contacts. A large household SAR further suggests that between-household transmission risk is lower; otherwise the observed R0 would be larger....”
https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(20)30462-1/fulltext
China tv grills Linda Saif - Ohio State U - and asks her several times to emphasize that COVID is not lab-created
https://www.youtube.com/watch?v=n27rmu-TPxA
and, to continue the push for China to save face, is this the world is naughty, how dare they limit flights, admonishment (and said authors can kiss the world’s hiney)
Do not violate the International Health Regulations during the COVID-19 outbreak
Roojin Habibi,Gian Luca Burci,Thana C de Campos,Danwood Chirwa,Margherita Cinà,Stéphanie Dagron,Mark Eccleston-Turner,Lisa Forman,Lawrence O Gostin,Benjamin Mason Meier,Stefania Negri,Gorik Ooms,Sharifah Sekalala,Allyn Taylor,Alicia Ely Yamin,Steven J Hoffman
https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(20)30373-1/fulltext