Austin recently attended a family reunion and noticed some of his family members were not feeling well. A few days later, he woke up with a fever and sore throat. What part of the natural history of disease does the first appearance of the fever and sore throat represent?
a. Inoculation point
b. Incubation period!
c. Prodromal point
d. Prodromal period

Austin recently attended a family reunion and noticed some of his family members were not feeling well. A few days later, he woke up with a fever and sore throat. The part of the natural history of disease between the first appearance of the fever and sore throat represent the Incubation period.

Explanation:

Incubation Period: this is the period between the exposure to a disease and the appearance of symptoms to the disease.

C.

Explanation:

This is not a diagnosis of a disease. Rather it is a term used to describe a point at which   sets of signs(observed by health practitioner), and symptoms (seen by patients)  experienced by a subject before   the onset of specific  signs and symptoms  associated with  a particular disease diagnosis emerged.

It is mostly used in mental illness for clinical description.

Although  Austin may  have  fever and and sore throat, these are risk factor of many disease, Thus it wrong for him that he  is likely to develop  influenza, or malaria!! , It is better he takes a medication to clear these symptoms  and then observe any manifestation that arise later on.