What Factors Influence Person-to-Person Transmission?

Several factors can affect the likelihood and efficiency of person-to-person transmission:

Infectious agent characteristics: The type of pathogen, its virulence, and its ability to survive outside the host are critical factors.
Host susceptibility: Age, immune status, underlying health conditions, and vaccination status can influence an individual's susceptibility to infection.
Environmental conditions: Temperature, humidity, and ventilation can impact the survival and spread of infectious agents.
Behavioral factors: Human behaviors such as hand hygiene, social distancing, and the use of personal protective equipment (PPE) play a significant role.
Social and economic factors: Population density, healthcare access, and socioeconomic status can also influence transmission dynamics.