Infecting more than 2 billion people worldwide,________ are the most common causes of chronic infectious diseases.

Question

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Intestinal roundworms, also known as soil-transmitted helminths, infect over 2 billion people worldwide and are the most common causes of chronic infectious diseases. Such infections are common in areas with poor sanitation and hygiene practices. The other options, such as intestinal tapeworms, fungi, algae, and protozoa, may cause infections, but their incidence is not as high as that of intestinal roundworms.

Infecting More Than 2 Billion People Worldwide,________ Are the Most