Serology tests for Covid-19 should be introduced in regular health screenings, especially for government-subsidised programmes such as Screen for Life and Project Silver Screen.

There is a possible link between Covid-19 and the risk of thrombosis - the formation of blood clots - in patients (Growing concern over link between virus and blood clots, May 29).

Asymptomatic patients may be unaware that they are at risk.

Including serology tests for Covid-19 in health screenings would become part of the defences in place to protect vulnerable seniors after the pandemic blows over.

Lim Teck Koon