Disease Transmission

Disease transmission is the process by which a pathogen spreads from one individual to another, causing illness. This can occur through direct contact like touching or kissing, indirect contact via surfaces or objects, respiratory droplets when an infected person coughs or sneezes, or through vectors like mosquitoes. Factors such as hygiene, immune system strength, and environment influence how easily a disease spreads. Preventive measures—like handwashing, vaccinations, masks, and sanitizing—aim to interrupt these transmission routes, reducing the risk of infection and protecting public health.