The widespread transmission of the Delta variant is one of the reasons why the term "herd immunity" should not be used during the Covid-19 pandemic, says Khairy Jamaluddin.
The Health Minister said that during his winding-up speech on the Royal Address in Parliament on Thursday, adding that vaccinating youths under the National Covid-19 Immunisation Programme is important as the aim now is to achieve the "broadest coverage" of vaccination.
