WHO: More dangerous coronavirus variants could appear
The delta variant of COVID-19 is a warning to the world to fight the virus quickly before it mutates again into something even worse, the…
The delta variant of COVID-19 is a warning to the world to fight the virus quickly before it mutates again into something even worse, the…
The World Health Organization (WHO) estimates that 10% of the world’s population may have been infected with the coronavirus. During the organization’s board meeting on…