SINGAPORE - There are some groups of people who should wait to receive a Covid-19 vaccine, including those with a history of severe allergic reactions, said a panel of experts on Thursday (Dec 17).
Serious allergies usually refer to people who, in response to a specific stimulus such as a bee sting or medication, experience swelling around the mouth, eyes or face, have difficulty breathing or experience a serious drop in blood pressure, said Associate Professor Lim Poh Lian, the director of the high-level isolation unit at the National Centre for Infectious Diseases.
Others who belong to certain groups - such as pregnant women, immunocompromised persons and those under the age of 16 - should also hold off on receiving the shots, as large-scale clinical trials have not involved such volunteers. This means there is not yet enough data to evaluate the safety of a Covid-19 vaccine on these groups of people.