HONG KONG – In a surprisingly candid statement, the director of China’s Centers for Disease Control conceded that the efficacy of Chinese coronavirus vaccines is "not high" and may require improvements.
If these top-line phase III results were a grade card for 12- to 15-year-olds, they would be on the honor roll: The Pfizer Inc.-Biontech SE COVID-19 vaccine is 100% effective for the age group and produced robust antibody responses. The new results play out against a backdrop of increased production and big revenue estimates.
As COVID-19 vaccinations continue to roll out, momentum builds with strong phase III data for what could become the fourth and fifth walls of defense in the U.S. With three vaccines already authorized, research reported in March offers hope for a second adenovirus vector vaccine candidate with Astrazeneca plc’s AZD-1222, as well as for the first protein subunit vaccine option with Novavax Inc.’s NVX-CoV2373.
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 BIO's executive committee, told BioWorld.
CAJICA, Colombia – Countries in Latin America have joined those in Europe expressing mixed reactions about continuing their vaccination plans with the AZD-1222 SARS-CoV-2 vaccine developed by Astrazeneca plc and the University of Oxford, following reports of alleged adverse events.
After working 24/7 to develop a COVID-19 vaccine in a historic timeframe and scale up manufacturing at an unprecedented rate, some vaccine manufacturers are now facing what appears to be a concerted Russian misinformation campaign akin to those used in the last two U.S. presidential campaigns.
With COVID-19 vaccine manufacturing still scaling up and the scarcity of some supplies, most of the vaccine doses available so far have been distributed in 75 countries while 115 countries are still waiting, World Trade Organization Director-General Ngozi Okonjo-Iweala said at the Global C19 Vaccine Supply Chain and Manufacturing Summit.
As the World Trade Organization (WTO) debate intensified this week over a demand to waive patent protections for COVID-19 vaccines and therapies, the group’s new director-general, Ngozi Okonjo-Iweala, urged members to “walk and chew gum” at the same time by working with “companies to open up and license more viable manufacturing sites now in emerging markets and developing countries. We must get them to work with us on know-how and technology transfer now.”
China’s National Medical Products Administration granted conditional approval two Chinese-developed COVID-19 vaccines in less than 24 hours on Feb. 25. One of the vaccines approved was developed by Tianjin-based Cansino Biologics Inc., and the other by China National Pharmaceutical Group (Sinopharm) through its Wuhan Institute of Biological Products subsidiary.