Indonesia, which uses the Sinovac vaccine as its main Covid-19 inoculation, is considering providing a booster shot, as a study showed antibodies provided by the two-dose shot fade over time, a senior Health Ministry official said yesterday.

Indonesia, which has become Asia's Covid-19 epicentre with record infections and deaths this month, relies heavily on the Sinovac vaccine that accounts for more than fourth-fifths of 173 million doses of vaccine supplies it has received so far...