Opportunistic Infections
Opportunistic infections are illnesses caused by microorganisms such as bacteria, viruses, fungi, or parasites that exploit weaknesses in a person's immune system. This typically occurs in individuals with compromised immunity, such as those with HIV/AIDS, cancer patients undergoing chemotherapy, or people on immunosuppressive drugs. Since their immune defenses are weakened, these individuals are more susceptible to infections that a healthy person might easily fight off. Common examples include pneumonia, certain types of tuberculosis, and fungal infections. Preventing and treating these infections is crucial for maintaining health in those with weakened immune systems.
Additional Insights
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Opportunistic infections are illnesses caused by microorganisms that usually do not cause disease in healthy individuals but can take advantage of weakened immune systems. People with compromised immunity—such as those with HIV/AIDS, cancer patients, or organ transplant recipients—are at higher risk. These infections can be caused by bacteria, viruses, fungi, or parasites that the body typically controls easily. Because the immune system is less effective, these infections can become serious and even life-threatening, highlighting the importance of maintaining good health and monitoring at-risk individuals.