Omicron may be less severe in South Africa. The omicron variant may end up acting differently in the U.S. Omicron brings less severe disease in South Africa First, let's look more closely at all that good news from South Africa. "Thus, omicron enters a South African population with considerably more immunity than any prior SARS-CoV-2 variant," concluded Dr. Roby Bhattacharyya, …
Imagine that it is 2022. Creating a test that estimates the amount of immunity requires having what immunologists call correlates of immune protection — biomarkers that serve as measures of the ability to prevent infection or symptomatic Covid-19. Three different approaches point to neutralising antibody levels correlating with immune protection. The goal here is to compare the two sets of …
Community serological surveys are aimed at estimating prevalence of infection in a given region and thereby guiding strategies to prevent its spread. “Not all anti-RBD IgGs will be neutralising antibodies, but the bulk of them would be.” Aurnab Ghose pointed out this interesting fact to Frontline in an email correspondence when queried on the need to actually carry out such …
