People arrive at the Bang Sue Grand Station in Bangkok for booster shots last month. (Photo: Apichit Jinakul)
People who want to have a third or fourth Covid-19 shot at the vaccination centre at Bang Sue Grand Station can choose to have a lighter-dose intradermal injection instead, as the centre adds more options for booster shots.
It has arranged intramuscular injections with either 15mcg or 30mcg of vaccine per dose, and intradermal injections with a 10mcg/dose.
Administering half a dose under the skin has been found to maintain a high level of efficacy while causing fewer side effects, according to Dr Mingkwan Wichaidit, director of the Institute of Dermatology.
However, recipients may develop skin irritation for a few days before they recover, she noted.
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