4 out of 155,000 people vaccinated had severe allergic reactions, all have recovered Toggle share menu Advertisement 4 out of 155,000 people vaccinated had severe allergic reactions, all have recovered A person receiving a dose of the COVID-19 vaccine at Tanjong Pagar Community Centre on Jan 27, 2021. (Photo: Jeremy Long) 02 Feb 2021 09:36AM) Share this content Bookmark SINGAPORE: There have been four reported cases of anaphylaxis in people who received the first dose of the Pfizer-BioNTech vaccine, Senior Minister of State for Health Janil Puthucheary said in Parliament on Monday (Feb 1) in Parliament. This is one more than the number reported last week when the Ministry of Health (MOH) gave an update on the COVID-19 vaccination programme in Singapore.