Men sit on the ground with lines drawn with chalk to maintain safe distance as they wait to receive sacks of ration handouts from a distribution point of a charity welfare during a partial lockdown after Pakistan shut all markets, public places and discouraged large gatherings amid an outbreak of coronavirus disease (COVID-19), in Karachi, Pakistan, March 26, 2020. Coronavirus china virus health healthcare who world health organization disease deaths pandemic epidemic worries concerns Health virus contagious contagion viruses diseases disease lab laboratory doctor health dr nurse medical medicine drugs vaccines vaccinations inoculations technology testing test medicinal biotechnology biotech biology chemistry physics microscope research influenza flu cold common cold bug risk symptomes respiratory china iran italy europe asia america south america north washing hands wash hands coughs sneezes spread spreading precaution precautions health warning covid 19 cov SARS 2019ncov wuhan sarscow wuhanpneumonia  pneumonia outbreak patients unhealthy fatality mortality elderly old elder age serious death deathly deadly
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