Sneezing is like a biological weapon!

Specifically, infected with microscopic droplets that are expelled by coughing and sneezing are sufficient to spread the disease. Inhaling viral particles in medical office, the workplace, on the plane or bus, can lead to an infection after an hour. This finding suggests that it is necessary to avoid waiting in hospitals because there is great risk of illness. This explains why many people often get sick at the beginning of rest after the flight, bus ride and the like.

Flu passes from person to person by direct physical contact, or if the person coughs and sneezes. Most studies have concentrated on aerosols, droplets that carry the virus and the air that quickly fall to the ground and the surrounding area.

U.S. researchers collected air samples from the clinic waiting room, three rooms in the kindergarten and three international flights. Half of the samples contained influenza virus. It was found that one cubic meter of air contains approximately 16 000 particles of virus. Inhalation of indoor air with this concentration of virus can lead to infections in just one hour.

The risk can be significantly reduced ventilation, air conditioning and ventilation. Typical cough are expelled jets 30 cm long, with about 3,000 saliva droplets at a speed of 80 km / h. Sneezing ejects approximately 40,000 droplets, some of them leave the body at a speed of 160 km / h.

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