‘Blink-&-you-miss’ Covid cases on the rise

Doctors in Kolkata are reporting a sudden surge in number of patients with mild symptoms that are fading away in two-three days, quicker even than for ordinary viral fever. Most of these patients are recovering from mild fever and throat irritation even before they test positive. Experts warn that while this could be a signal of the virus losing some of its sting. But such patients pose far greater risk of passing on the infection

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