Which of the following is an infectious disease?

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Multiple Choice

Which of the following is an infectious disease?

Explanation:
An infectious disease is one caused by a pathogen—such as a virus, bacteria, fungus, or parasite—that can be transmitted from person to person or through the environment. The flu is caused by the influenza virus and spreads easily through respiratory droplets when someone coughs or sneezes, making it contagious. The other options are not caused by pathogens and aren’t contagious: diabetes is a metabolic disorder with high blood sugar, hypertension is high blood pressure, and cancer involves uncontrolled cell growth. Because of its cause and ability to spread, the influenza illness is the infectious disease.

An infectious disease is one caused by a pathogen—such as a virus, bacteria, fungus, or parasite—that can be transmitted from person to person or through the environment. The flu is caused by the influenza virus and spreads easily through respiratory droplets when someone coughs or sneezes, making it contagious. The other options are not caused by pathogens and aren’t contagious: diabetes is a metabolic disorder with high blood sugar, hypertension is high blood pressure, and cancer involves uncontrolled cell growth. Because of its cause and ability to spread, the influenza illness is the infectious disease.

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