The World Health Organization said on April 11 it is tracking a few dozen cases of two new sub-variants of the highly transmissible Omicron strain of the coronavirus to assess whether they are more infectious or dangerous.

Three new studies have been released—but not yet peer-reviewed—that support the wet market theory about the origin of COVID-19.

Jane Qiu, a freelance science writer based in Beijing, published an overview of her efforts to investigate the lab-leak theory for the origin of COVID-19. In another update, the FDA’s Vaccines and Related Biological Products Advisory Committee is scheduled to meet on February 15 to discuss an amended Emergency Use Authorization for the Pfizer-BioNTech COVID-19 vaccine for children 6 months through 4 years of age.

The head of the World Health Organization said on Feb. 5 he had discussed with Chinese Premier Li Keqiang the need for stronger collaboration on the origins of COVID-19, a subject of controversy that has strained Beijing’s relations with the West.

China must be more forthcoming with data and information related to the origin of the SARS-CoV-2 coronavirus, the head of the World Health Organization (WHO) said on December 20.

Data continue to suggest that although the Omicron variant is more infectious and more likely to evade immunity than the Delta variant, it appears to be associated with less severe illness. Meanwhile, researchers are puzzled about the origins of Omicron.

The White House said on Nov. 4 that understanding the origins of Covid-19 remains a key focus of the Biden administration and that they will continue pushing for answers.

The controversy surrounding Covid-19’s origin continues to heat up, as the National Institutes of Health’s recent removal of genetic data about the novel coronavirus virus from the NIH archive was brought into the spotlight.

World Health Organization investigators have attempted to return to the Wuhan lab but are now being blocked by the Chinese government.

China rejected on July 22 a World Health Organization (WHO) plan for a second phase of an investigation into the origin of the coronavirus, which includes the hypothesis it could have escaped from a Chinese laboratory, a top health official said.