Which type of pathogens can cause droplet transmission?

Droplet transmission occurs when infectious pathogens are expelled from an infected person through respiratory activities such as talking, coughing, or sneezing, and then travel a short distance (typically up to six feet) before landing on a new host. Respiratory viruses are the primary pathogens associated with this mode of transmission because they are commonly found in the respiratory tract and are spread through respiratory droplets. Examples of respiratory viruses include influenza and SARS-CoV-2, which can easily transmit between individuals in close proximity.

The other options refer to different types of diseases or pathogens that do not primarily spread through droplet transmission. Endocarditis is often caused by bacteria entering the bloodstream and is generally associated with direct contact or medical procedures rather than respiratory droplet spread. Gastrointestinal pathogens mainly spread through fecal-oral routes, often through contaminated food or water, and do not utilize droplet transmission. Staphylococcus infections may involve skin or other tissues and typically require direct contact or other modes of transmission, not airborne or droplet spread. Therefore, respiratory viruses are distinctly linked to droplet transmission, making this option the correct answer.