Airborne coronavirus spread: Five things to know

Al Jazeera 

More than seven months after the new coronavirus was first detected, scientists and health experts are still trying to get a better understanding of how it spreads and how to curb the COVID-19 respiratory disease it causes. The coronavirus is transmitted from person to person through "droplet transmission", including direct contact with someone who has been infected, indirect contact with contaminated surfaces, droplets of saliva from coughing or discharge from the nose when sneezing, according to the World Health Organization (WHO). Airborne transmission is also possible, but its effects and risks have recently sparked a scientific debate. The WHO has long said the new coronavirus spreads mainly through small droplets released from the mouth and nose that fall from the air in a short period. But some scientists and researchers are increasingly pointing out to evidence that the virus can also be transmitted by even smaller droplets called aerosols.

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