Coronavirus: What's behind alarming new US outbreaks?

s coronavirus outbreaks are slowly brought to heel in many places around the world, the US is among a handful of countries facing a surge of new infections.First, it’s important to note that across the US, more efficient testing has played some role in the climbing case count. If lots of tests are being conducted and the spread of the coronavirus has been reduced, then the positive case rate would fall in tandem. The World Health Organization says that states should have a positive case rate at or below 5% for two weeks before they loosen restrictions on movement.Even with testing success stories, it’s clear that the southern and western US are seeing a particularly sharp spike in infections and their rate.

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