The World Health Organization records 1.4 million new infections in July and August, an 80 percent increase from the previous month.
COVID-19 cases are rising again, as are coronavirus variants.
The magnitude is less than before, but the latest figures show that the incidence of the disease is increasing.
There are also many variants, as the virus mutates and grows as it spreads.
This presents challenges for scientists working to develop vaccines that can deal with new threats.
The World Health Organization wants its experts to return to China to learn more about the origins of the disease.
So how dangerous is this wave?
Presenter: Mohammed Jamjoom
Dr Paul Hunter – Professor of Medicine at the University of East Anglia
Dr Patrick Tang – Head of Microbiology Division at Sidra Medicine, Doha
Dr Gabriel Scally – Professor of Public Health at the University of Bristol