Cambodia will begin offering a booster shot against Covid-19, switching between the AstraZeneca and Chinese Covid-19 vaccines in an effort to fight the spread of the coronavirus in the Southeast Asian country.
AstraZeneca's Covid-19 vaccine carries a small extra risk of rare blood clots with low platelets after the first dose and no extra risk after the second, a study led and funded by the drugmaker showed on Wednesday, after worries over side-effects.
The European Commission said on Friday it is looking at ways to agree a coordinated approach to accepting the Indian version of AstraZeneca's shot, Covishield, across the European Union but will need some time.
Delayed second and third doses of the AstraZeneca vaccine boost immunity against Covid-19, a study by Oxford University, which developed the jab with the British-Swedish firm, said on Monday.
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
Europe's drug regulator on Friday advised against using AstraZeneca's Covid-19 vaccine in people with a history of a rare bleeding condition and said it was looking into heart inflammation cases after inoculation with all coronavirus shots.
India's Serum Institute will increase production of AstraZeneca Covid-19 vaccines by nearly 40% in June, officials said on Monday, in the first step towards alleviating a shortage that has worsened the country's battle with coronavirus.
A Spanish study on mixing Covid-19 vaccines has found that giving a dose of Pfizer's drug to people who already received a first shot of AstraZeneca vaccine is highly safe and effective, preliminary results showed on Tuesday.
Europe's medicines regulator said on Friday it was reviewing reports of a rare nerve-degenerating disorder in people who have received AstraZeneca's Covid-19 vaccine, and requested more detailed data on the cases from the company.
The European Commission's legal proceedings against Anglo-Swedish drugmaker AstraZeneca over vaccine supplies began at the Brussels Court of First Instance on Wednesday.
Europe's drug regulator reiterated on Friday that benefits of AstraZeneca's Covid-19 vaccine outweigh any risks, as part of a detailed guidance from ongoing reviews into rare blood clots to help individual nations determine the shot's use.
Canadian health authorities said Saturday the country has recorded a second case of rare but serious blood clotting linked to AstraZeneca's Covid-19 vaccine, but still recommend the shot for use.