Which of the following is the most common route of transmission of respiratory infections?

Respiratory infections are most commonly transmitted through airborne droplets released when an infected person coughs, sneezes, or talks. These droplets may be inhaled directly or land on surfaces where they can be transferred to the respiratory tract. Sexual intercourse and IV drug use are associated with bloodborne or sexually transmitted infections. The fecal-oral route is common for gastrointestinal infections. The NEX Science exam frequently tests routes of transmission as part of infection control and prevention, making coughing the correct and most common route for respiratory infections.

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