Multiple choice

Infectious agents do not spread through

  1. vectors

  2. physical contact

  3. air

  4. vaccines
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Infectious agents mean the agents or organisms through which diseases or infections spread. For example, bacteria, viruses, protozoa, etc These infectious agents, i.e. microbes spread and cause diseases through vectors, physical contact and also air. But vaccines are kinds of formulations, which are used to immunise the body against diseases and control their spreading. Thus, the infectious agents do not spread through vaccines.

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