A patient experiences headache and nausea due to an infection. This is the _________________ of the…

➤ How does the incubation period differ from symptoms?
The incubation period is the time between exposure to a pathogen and the first appearance of symptoms. During incubation a person may feel well and sometimes still transmit the infection. Symptom onset follows incubation and signals host immune response; the length varies by pathogen, from hours to weeks, and affects public health decisions.