WHO rules plasma out as Covid-19 treatment

An Indonesian man who has recovered from Covid-19 donates his plasma in this filepic. The WHO recommends against using such plasma to treat Covid-19 patients as it has not been shown to improve survival or prevent the need for mechanical ventilation. — Xinhua

Convalescent plasma (a transfusion of blood plasma from someone who has recovered from Covid-19) is not recommended for patients with Covid-19, says a World Health Organization (WHO) Guideline Development Group of international experts.

Despite its initial promise, current evidence shows that it does not improve survival nor reduces the need for mechanical ventilation.