Latent period

Definition

The latent period is the time interval between exposure to a pathogen and the appearance of detectable antibodies in the bloodstream. It is a crucial phase in the development of humoral immunity.

5 Must Know Facts For Your Next Test

1. During the latent period, no specific antibodies are detected despite exposure to an antigen.
2. The length of the latent period can vary depending on several factors, including the nature of the antigen and host immune response.
3. B lymphocytes are activated during this period but have not yet produced significant levels of antibodies.
4. The latent period is followed by the exponential phase where antibody levels rapidly increase.
5. Understanding the latent period is essential for vaccine development and disease diagnosis.

Review Questions

• What occurs during the latent period in adaptive immunity?
• How does the length of the latent period affect antibody production?
• Why is understanding the latent period important in vaccine development?

Related terms

B Lymphocytes:

White blood cells that play a key role in humoral immunity by producing antibodies.

Antigen:

A substance that elicits an immune response, resulting in antibody production.

Humoral Immunity:

Aspect of immunity that involves B cells and production of antibodies to fight extracellular pathogens.