Several countries, including the US, have seen a surge in Covid infections over recent weeks

Chronic wasting disease (CWD) was first discovered in November at Yellowstone National Park in Wyoming

The rare fungal infection called 'Candida auris' is spreading rapidly across the US, with a

Experts have described the fungal disease as a "global health threat"

C. auris, a type of yeast that can cause severe illness, is a "global health