When a virus jumps: of man, microbes and pandemics
Live MintInger Andersen, executive director of the UN Environment Programme, said last month that nature was sending humankind a “message” through the coronavirus pandemic and climate crisis. “Warm climate keeps becoming warmer and that’s what we have to prepare ourselves for.” ‘FLIGHT AS FEVER’ In the past, researchers have traced the origins of some of the deadliest animal-borne disease outbreaks to one source: bats. A study published in February in the scientific journal eLife by researchers at the University of California, Berkeley explains how fierce immune systems in bats drive viruses to higher virulence, making them deadlier in humans who have a relatively “tamer” immune system. Aaron T. Irving, a senior research fellow at the Duke-NUS Medical School in Singapore, says much of the problem is the human immune system: It’s “overreacting and killing us”. Arinjay Banerjee, a postdoctoral researcher at McMaster University’s Institute for Infectious Disease Research in Canada, says it would not be fair to describe bats as reservoirs of deadly viruses.