Which term describes a disease state that is present but not causing symptoms?

Which term describes a disease state that is present but not causing symptoms?

• A. Infectious disease
• B. Universal precautions
• C. Latent infection
• D. Reservoir

Answer: (C)

Latent infection describes a disease state where the pathogen is present in the body but remains dormant and not actively causing symptoms. In this state, the immune system keeps the organism in check, so there’s no active replication or tissue damage and the person feels healthy. This can persist for long periods and may later reactivate to cause illness. Examples include the herpes viruses, which hide in nerve cells and can reemerge as outbreaks, or latent tuberculosis, where bacteria remain without symptoms but can become active later. This differs from an infectious disease, which involves ongoing symptoms and often contagiousness; universal precautions are just safety practices to prevent transmission, and a reservoir is simply the environment or host where the pathogen persists.

Latent infection describes a disease state where the pathogen is present in the body but remains dormant and not actively causing symptoms. In this state, the immune system keeps the organism in check, so there’s no active replication or tissue damage and the person feels healthy. This can persist for long periods and may later reactivate to cause illness. Examples include the herpes viruses, which hide in nerve cells and can reemerge as outbreaks, or latent tuberculosis, where bacteria remain without symptoms but can become active later. This differs from an infectious disease, which involves ongoing symptoms and often contagiousness; universal precautions are just safety practices to prevent transmission, and a reservoir is simply the environment or host where the pathogen persists.