It is for state authorities to investigate the potential side effects of Covid-19 vaccines, World Health Organization spokeswoman Margaret Harris said on Friday. She added that some vaccines may not be suitable for certain groups.
Harris responded in a press conference to a question about a warning issued by the British MHRA not to use the recently approved vaccine from Pfizer in the UK to people who have experienced anaphylactic reactions to drugs or food in the past. This was due to a reaction in two people who received the vaccine.
"People should not worry too much. Remember that there are many potential vaccines that will enter the market at the same time. One vaccine may not be suitable for some people, but another may be," the spokeswoman added.
Harris said WHO is in the process of analyzing data from the final phase of clinical trials on several potential vaccines, but has yet to make any decision to include any of them on the approved list. At the same time, she assured that security is a priority for WHO.
The United Kingdom is the only country to date to start vaccinating with Pfizer. In the coming days, the US Food and Drug Administration (FDA) should also issue conditional approval for this vaccine. (PAP)