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What are infections?

Infections occur when harmful organisms enter your body and multiply, which then creates disease. Infections can be the result of many different types of organisms, such as viruses (viral infections), bacteria (bacterial infections), parasites (parasitic infections), or fungi (fungal infections). Because there are so many types of infections, they can present with many different symptoms and treatments.

Continue Learning about Infectious Disease

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How can viruses and bacteria make me sick?
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Bacteria are single-celled organisms usually found all over the inside and outside of our bodies, ex...
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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.