Dangerous coronavirus variants identified in Africa, Europe and South America
Coronavirus can cause increased sperm cell death, inflammation and oxidative stress
New president reversing order from Trump in his final days in office
Like all viruses, SARS-CoV-2 mutates in order to maximise its survival chances
The robot, which constitutes a rubber head and 8 tentacles, was created by a 3D printer
A record 1,610 deaths were recorded on Tuesday
The blood test measures levels of mitochondrial DNA
California expands eligibility for shots
Highly infectious new variant spreading nationwide
US has marked 20.4 million cases overall and just under 350,000 deaths