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These days, I frequently dream about indulging in crowded, indoor gatherings. It feels so good to interact with other people in person, but even while I’m doing it I have the creeping feeling that something is wrong. After the event still dreaming I’m hit by a wave of realization, dread and guilt. A two-week ticker starts after I’ve left the gathering. I feel disappointed in myself, yet also understanding it’s so natural to want to be other people and so absolutely normal. I can see how I slipped up. Of course, in my waking life I am a hell of a lot more meticulous. As someone with an underlying condition and therefore vulnerable to COVID-19, I have been on the more extreme end of risk aversion when it comes to public spaces.
Thousands of Human Skeletons Show Us The Evolutionary War Between Man And Disease
28 FEBRUARY 2021
As the world wrestles with a global pandemic, a study of tens of thousands of ancient skeletons has revealed how the human body evolves to fight disease, and how the diseases also evolve to become less deadly over time. Its conclusions could teach experts more about how we ll adapt to cope with diseases in the future.
The researchers behind the new study say that it shows how germs mutate to replicate and ensure survival across as many human hosts as possible – but that this behaviour also then reduces the severity of the disease over time. In the end, the harmful microorganisms or pathogens end up reaching a sort of truce with the human body.
Animal diseases intensified by climate change
From Bluetongue disease in sheep to Rift Valley Fever in camels, researchers say that animal diseases are sparked and spread by climate change. What causes them, and what can people do to prevent them from spreading?
Bluetongue is transmitted by a tiny biting midge, Cullicoides immitus, similar to the way that malaria is spread by mosquitoes. Sheep with swollen, bright blue tongues: it is a surreal sight only recently spotted in Germany. Aptly dubbed Bluetongue, the deadly disease causing the coloration was previously well known in veterinary medicine as a virus specific to Africa, says Heribert Hofer, the director of the Leibniz Institute for Zoo and Wildlife Research and a professor at Free University of Berlin. It particularly occurs in sheep, cattle and goats.