The World Health Organization on Saturday warned the coronavirus pandemic was likely to be "lengthy" after its emergency committee met to evaluate the crisis six months after sounding the international alarm.
ROME — When the coronavirus erupted in the West, Italy was the nightmarish epicenter, a place to avoid at all costs and a shorthand in the United States and much of Europe for uncontrolled contagion.
Despite never implementing a full-scale lockdown, Sweden has managed to flatten its curve, prompting its health leadership to claim victory -- but others question the cost of the strategy, as the country has a far higher death toll than its Scandinavian neighbors.
Billions of dollars are being invested in the development of vaccines against the coronavirus. Until one arrives, many scientists have turned to tried-and-true vaccines to see whether they may confer broad protection, and may reduce the risk of coronavirus infection, as well.
Old standbys like the Bacille Calmette-Guerin tuberculosis vaccine and the polio vaccine appear to help train the immune system to respond to a broad variety of infections, including from bacteria, viruses and parasites, experts say.
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