The World Health Organisation (WHO) says the agency is aware that around one in every one million people vaccinated may have a severe allergic reaction to the COVID-19 vaccine, known as anaphylaxis. According to a statement posted on the WHO website on Tuesday, the organisation stated that just like the way people react to other vaccines or drugs, they could also react to the COVID-19 vaccine. It said, “Some people could react to the vaccine, especially those with a history of anaphylaxis to one of the vaccine constituents which may have...