Question

During the 3rd stage of infection, ___ ___ is replaced by ___ ___.

a) Viral replication; bacterial colonization
b) Immune response; pathogen invasion
c) Incubation period; prodromal stage
d) Latent period; acute phase

Answer 1

The correct answer is that during the 3rd stage of infection, the incubation period is replaced by the prodromal stage. This stage is characterized by the multiplication of pathogens and the onset of general symptoms due to the immune response.

Step-by-step explanation:

During the 3rd stage of infection, the incubation period is replaced by the prodromal stage.

The periods of disease include the incubation period, the prodromal period, the period of illness, the period of decline, and the period of convalescence. The incubation period is when the pathogen first enters the host and begins to multiply, but no symptoms are apparent yet. Following this is the prodromal period, where the pathogen continues to multiply, and non-specific symptoms start showing, indicating the activation of the immune system.

After the prodromal stage, the period of illness occurs, with the most severe and clear symptoms manifesting. Finally, the decline stage leads to a decrease in pathogens and symptoms, transitioning into the convalescence period where the patient recovers.