Question

Match each mode of transmission with an effective method of blocking it.

Answer 1

Answer:

Mode of transmission       Method of blocking

Indirect Contact -----------→  washing food (A)

Direct Contact -------------→   getting vaccinated (B)

Animal Vector --------------→  using insect repellent (C)

Explanation:

Transmissible infectious diseases are those caused by pathogenic biological agents and can be prevented by preventive measures. Three forms of contagion are direct contact, indirect contact and vector transmission.

Direct contact: occurs with direct exposure to a sick person, their breathing or their secretions. The flu is a disease transmitted by direct contact.

Indirect contact: a sick person contaminates an object or food, which is then handled or consumed by another person, acquiring the disease. Food poisoning or intestinal parasitosis can be transmitted by the consumption of contaminated food by a sick person.

Vector transmission: Some insects, such as mosquitoes, carry diseases that can be transmitted through their bite to a healthy person. Dengue fever is vector-borne.

The preventive measures or to block the spread of diseases, according to the mechanism of transmission, are:

• Transmission by direct contact can be prevented or blocked by immunization or vaccination.
• Properly washing food prevents the spread of disease through indirect contact.
• The use of insect repellent prevents the vector of a disease from spreading it through its bite.