The effectiveness of protective barriers depends on several factors, including the type of barrier, the proper use and maintenance of the barrier, and the specific pathogen in question:
Masks: Effective in preventing respiratory infections like COVID-19 when used correctly. Hand Hygiene: Regular handwashing with soap and water or using hand sanitizers significantly reduces the spread of many pathogens. Vaccination: Provides long-term protection by stimulating the immune system to recognize and fight specific pathogens.