Which one of the following is caused by a bacterial pathogen?

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AIDS

Dengue fever

COVID-19

Typhoid fever

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This question was previously asked in

UPSC NDA-1 – 2022

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Typhoid fever is caused by the bacterium *Salmonella Typhi*. AIDS is caused by the Human Immunodeficiency Virus (HIV). Dengue fever is caused by the Dengue virus. COVID-19 is caused by the SARS-CoV-2 virus. Therefore, Typhoid fever is the only disease among the options caused by a bacterial pathogen.

Pathogens can be viruses, bacteria, fungi, or parasites. It is important to know the type of pathogen causing common diseases.

Typhoid fever is typically spread through contaminated food or water. It is a serious illness characterized by high fever, fatigue, abdominal pain, and sometimes a rash. Antibiotics are used to treat bacterial infections like typhoid fever.

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