WHO warns of alarming resurgence of Covid-19 amid summer surge in cases and infections at Paris Olympics.
The incidence rate of coronavirus is rising.
Dr Maria Van Kerkhove, a technical adviser to the WHO, said on her personal blog that the number of people with Covid-19 has risen sharply.
Cases of coronavirus have been recorded in 84 countries.
Moreover, the level of spread of the virus is unusually high for this period.
The doctor explained that the percentage of positive tests for SARS-CoV-2 has shown an increase of up to 10% in recent weeks.
In Europe, the percentage of positive results has exceeded 20%.
New waves of Covid-19 detected in America, Europe and the Western Pacific.
Many countries have seen spikes in cases in recent months, including around the Paris Olympics.