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Friday, March 20, 2020

Two CoronaVirus’ Flow Across Countries?

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Italian death toll overtakes China's as virus spreads
Italy, with a population of 60 million, recorded at least 3,405 deaths, or roughly 150 more than in China — a country with a population over 20 times larger.
Italy reached the bleak milestone the same day that Wuhan, the Chinese city where the coronavirus first emerged three months ago, recorded no new infections, a sign that the communist country's draconian lockdowns were a powerful method to stop the virus' spread.
(albeit months too late for action and notification to save many)
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Coronavirus: Are there two strains and is one more deadly?
A separate analysis by the team suggests that the L-type was derived from the older S-type. The first strain is likely to have emerged around the time the virus jumped from animals to humans. The second emerged soon after that, says the team. Both are involved in the current global outbreak. The fact that the L-type is more prevalent suggests that it is “more aggressive” than the S-type, the team say.
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The two-virus scenario would tend to explain why the infections and transmissions on the Diamond Princess cruise ship (a near perfect petri-dish coronavirus disease case)  is much lower than many other environments.
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“In addition to the low rate of disease incidence (83% didn’t get it), the curious part of Figure 2 is that there’s not a whole lot of difference between young and old passengers in terms of how many didn’t get coronavirus. For example, sixty to sixty-nine-year-old passengers stayed healthier than teenagers. And three-quarters of the oldest group, those over eighty, didn’t get the virus”
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