Pure Science: How can bats host thousands of viruses and not fall ill?

Bats are known reservoirs of at least 10,000 types of viruses, and have spread some to humans indirectly. And yet, they do not catch the disease these viruses cause. ThePrint’s Sandhya Ramesh takes a look at how bats’ immune systems respond to these viruses and how human activity is the bigger culprit.