Thursday 26 March 2020

Modes of contact and risk of transmission in COVID-19 among close contacts

A new preprint on medRxiv examines the modes of contact and the level of transmission among close contacts of persons infected with COVID-19. The study follows just under 5,000 close contacts in Guangzhou, China. Of the close contacts identified, 2.6% of cases developed symptoms during their quarantine, the majority of which were mild or moderate cases (89.9%) and a small portion of which were asymptomatic (6.2%). They authors found that contacts within the same household were at the highest risk of contracting COVID-19.

Read here (Medrxiv, March 26, 2020)

Note: As the Covid-19 situation worsens in the US, Europe and other countries, our students and other citizens are coming home in large numbers. They are being told to self-quarantine. Many are doing it at home, in which case they may infect others if they are carrying the virus. Some are sending their folks to AirBNBs.

Worst ever Covid variant? Omicron

John Campbell shares his findings on Omicron.  View here (Youtube, Nov 27, 2021)