Question

Droplet infection is a type of
A. Direct transmission
B. Indirect transmission
C. Vector transmission
D. None of the above

Answer 1

Hint: Airborne diseases have a droplet mode of infection. When a person sneezes or coughs, the droplets in the air released can cause infection in the other person through nose, lungs or saliva and can transmit through airdrop particles.

Complete step by step answer: Airborne diseases can have a droplet mode of transmission. Through direct transmission, if the infected person sneezes/coughs, the droplet particles can be transmitted to the nearby healthy person. And, thus, it is recommended to maintain a distance from the infected person.
i. Indirect transmission can be spread through airborne transmission and other mechanisms like from contaminated objects, food, drinking water, animal-to-person contact, environmental reservoirs, insect bites, and animal reservoirs. Disease like measles can be airborne and can be transmitted indirectly. E.coli and Clostridium botulinum are easily transmitted through contaminated food and water. Toxoplasma gondii parasite can be found in cat faeces can be transmitted to the person when it comes in contact with it. Anthrax and rabies can be transmitted from animal reservoirs.
ii. Vector transmission occurs when the infected arthropod like mosquito bites to a healthy person and causes infection. Malaria, dengue, Lyme diseases are spread through vector transmission.
Hence, the correct answer is option A.

Note: Diseases like SARS-COVID-19, common cold, flu, diphtheria, plague, rubella, etc. are caused due to direct transmission by droplet infection. The droplets can also survive on the surfaces for several hours and when contacted by the host can cause infection.