Countries should also avoid giving the Astrazeneca coronavirus vaccine to people over 60, the head of the EU drug regulator's Covid-19 task force was quoted on Sunday as saying, amid fears over rare blood clotting and as more vaccines become available
The co-founder of BioNTech said Tuesday it was "highly likely" that its vaccine against the coronavirus works against the mutated strain detected in Britain, but it could also adapt the vaccine if necessary in six weeks.
Brazil's health regulator has suspended a clinical trial for China's Sinovac coronavirus vaccine citing a severe adverse event, surprising the trial organisers who countered there had been a death but it was unrelated to the vaccine.
Pfizer Inc said on Friday it could file for US authorization of the Covid-19 vaccine it is developing with German partner BioNTech as early as late November, suggesting that it's possible a vaccine could be available in the United States this year.
President Vladimir Putin announced on Wednesday that Russia has registered its second coronavirus vaccine, while the country reported a record number of new infections.
Russia on Tuesday declared itself the first country to approve a coronavirus vaccine with President Vladimir Putin saying one of his daughters had been inoculated.
Moderna Inc said on Sunday it has received an additional $472 million from the US government's Biomedical Advanced Research and Development Authority
There is "no guarantee" that the United States will have an effective coronavirus vaccine by the start of next year, the country's top infectious disease expert said on Tuesday.
The Federal University of Sao Paulo (Unifesp) is in talks to test a potential coronavirus vaccine developed by Italian researchers, the dean of the Brazilian university told Reuters.
Chinese researchers have started a second phase human trial of a possible coronavirus vaccine, the Institute of Medical Biology at Chinese Academy of Medical Sciences (IMBCAMS) said on Sunday
Chancellor Angela Merkel said on Monday that Germany would contribute 525 million euros ($573.51 million) to a global fund-raising push to search for vaccines and for a treatment for the novel coronavirus.
German Health Minister Jens Spahn warned Sunday that the worldwide scramble to develop a coronavirus vaccine could take years.