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Can blood from coronavirus survivors treat the newly ill?

Hospitals are gearing up to test if a century-old treatment used to fight off flu and measles outbreaks in the days before vaccines, and tried more recently against SARS and Ebola, just might work for COVID-19, too: using blood donated from patients who’ve recovered.

Best strategies against virus: Track, isolate, communicate

Some strategies are proving more effective than others in containing the COVID-19 pandemic: pro-active efforts to track down and isolate the infected, access to basic, affordable public health care, and clear, reassuring messaging from leaders. 

China’s skies are briefly clearer while factories stay shut

China’s far-reaching efforts to control the spread of the new coronavirus have shuttered factories, emptied airports and resulted in a steep drop in carbon emissions and other pollutants. However, analysts caution that the dip in pollution is likely temporary.

Virus renews safety concerns about slaughtering wild animals

China cracked down on the sale of exotic species after an outbreak of a new virus in 2002 was linked to markets selling live animals. Now another coronavirus is spreading through China, prompting calls to permanently ban the sale of wildlife.

How a small stretch of ocean stirred a conservation movement

Following the lead of the U.S., other nations have designated marine sanctuaries and protected areas, which now cover about 6% of the world’s oceans — a bonanza for researchers but, more importantly, an important tool for safeguarding the seas.