SINGAPORE - The four people who experienced a rapid onset of severe allergic reactions after receiving their Covid-19 vaccinations have all recovered, with none needing intensive care unit (ICU) support. Responding in Parliament on Monday (Feb 1) to questions from several MPs about the supply and side effects of the vaccine, Senior Minister of State for Health Janil Puthucheary added that the benefits of getting vaccinated outweigh the risks. Singapore's Covid-19 vaccination drive began on Dec 30. So far, front-liners such as medical personnel and aviation and maritime sector workers, and the elderly, have started receiving their Pfizer-BioNTech vaccine jabs. Dr Janil told the House that among those who have been vaccinated so far, there were four reported cases of anaphylaxis, which is the rapid onset of severe allergic reactions.