Answer:
The action that best limits the transmission of pathogens by direct contact is washing hands.
Step-by-step explanation:
Washing hands is a hygiene technique used to prevent the spread and transmission of contagious diseases, produced by pathogens.
Pathogens are germs, such as viruses, fungi, and bacteria, that are capable of producing disease. These pathogens can be carried by people or found on surfaces, which can reach the hands by contact.
The washing technique consists of using clean water and antiseptic soap for regular cleaning of both hands, because the hands are in direct contact with other people or objects that may contain pathogens.
The other options for this question, also related to disease prevention, are:
- Using mosquito netting: prevents diseases and pathogens that are transmitted by vectors, such as insects.
- Washing vegetables: prevents the consumption of food contaminated by microbes.
- Drinking only clean water: prevents the development of diseases of the digestive system.