What if a simple pill could help heal from Covid-19? US pharma giants Merck and Pfizer have announced encouraging results for oral drugs, while an anti-depressant has also shown promise in what could open up a new chapter in the fight against the pandemic. - What are these treatments ? - They are pills taken orally as soon as the first symptoms of Covid-19 appear, to avoid serious forms of the illness, and therefore hospitalisation. This form of treatment has been sought since the start of th...