Coronavirus Latest News

Why mRNA Covid-19 vaccines like Pfizer’s jab should be part of a long-term public health strategy

Last week, the chief executive of Pfizer said anyone who receives its Covid-19 vaccine will probably need to have a third dose within 6-12 months after being fully immunised, and then likely one dose every year going forward.We’ll need these because it’s likely that, for many of us, immunity will begin to wane within that time frame. The vaccine will also need to be tweaked to cover new coronavirus variants as they emerge.The advantage of mRNA vaccines like Pfizer’s is they’re much easier to…

Read the original article at South China Morning Post

Related Articles

Back to top button
Close