The continuing politicization of COVID-19 vaccines is undermining medical science and the international response to the pandemic. “Vaccine nationalism is very troubling,” Jeremy Levin, chair of the Biotechnology Innovation Organization’s (BIO) executive committee, told BioWorld.

CAJICA, Colombia – Authorities in Brazil released new efficacy data for Sinovac Biotech Ltd.'s COVID-19 vaccine Coronavac that surprised on the downside, suggesting the vaccine could be much less effective than initially indicated for preventing symptomatic infections.

CAJICA, Colombia – Brazil's Butantan Institute and the government of the state of Sao Paulo released efficacy results on Jan. 7 for Coronavac, developed by China’s Sinovac Biotech Ltd., that suggest the COVID-19 vaccine is more than 78% effective.

CAJICA, Colombia – Brazil's Butantan Institute and the government of the state of Sao Paulo released efficacy results on Jan. 7 for Coronavac, developed by China’s Sinovac Biotech Ltd., that suggest the COVID-19 vaccine is more than 78% effective.

HONG KONG and BEIJING – China’s Sinovac Biotech Ltd. delayed releasing trial data from its Coronavac COVID-19 vaccine while the National Medical Products Administration (NMPA) accepted an NDA from China National Biotec Group (CNBG) for its own vaccine, BBIBP-CorV.

HONG KONG and BEIJING – China’s Sinovac Biotech Ltd. delayed releasing trial data from its Coronavac COVID-19 vaccine while the National Medical Products Administration (NMPA) accepted an NDA from China National Biotec Group (CNBG) for its own vaccine, BBIBP-CorV.

CAJICA, Colombia – The 33 countries across Latin America, Central America and the Caribbean are taking vastly different approaches to secure, acquire and distribute COVID-19 vaccines. A handful of the region’s wealthier countries have signed deals with vaccine suppliers or plan to manufacture them, but it is unclear how others will source or distribute vaccines to protect roughly 657 million people. Many are counting on the COVAX initiative.

BOGOTA, Colombia and VANCOUVER, Canada – Anvisa, Brazil’s health care surveillance agency, re-started phase III trials for Coronavac, the COVID-19 vaccine candidate developed by China-based Sinovac Biotech Ltd., after a suspension of just two days. “Anvisa understands that it has sufficient subsidies to allow the resumption of vaccination,” the regulator said on Nov. 11. Anvisa said it plans to continue monitoring “the possible relationship of causality” between an unexpected serious adverse event and the vaccine.