Pestilence

Factbox: Latest on the coronavirus spreading in China and beyond - Reuters
Reuters reports: "The coronavirus outbreak that began in the central Chinese city of Wuhan has killed 42 people in China and infected more than 1,300 globally, most of them in China. The virus has caused alarm because it is still too early to know how dangerous it is and how easily it spreads between people. And because it is new, humans have not been able to build any immunity to it."]

Ancient never-before-seen viruses discovered locked up in Tibetan glacier | Live Science Live Science reports: "For the past 15,000 years, a glacier on the northwestern Tibetan Plateau of China has hosted a party for some unusual guests: an ensemble of frozen viruses, many of them unknown to modern science. Scientists recently broke up this party after taking a look at two ice cores from this Tibetan glacier, revealing the existence of 28 never-before-seen virus groups."

Comment: Two reports that tell us something very important. New virus strains are dangerous because we don't have immunity to them. But there are also OLD viruses locked in the ice that we also don't have immunity to and those viruses may be released into the environment as the ice melts.