What is the Duration of Fever Incubation

What is the Incubation Period of Fever?

What is the Incubation Period of Fever?

Fever can arise from various causes, with the length of the fever’s onset depending on the underlying infection.

For pneumonia, the incubation period typically ranges from one day to one week. Here are the estimated incubation periods for some common bacteria and viruses associated with pneumonia and fever:

Table 1


Incubation period

Respiratory syncytial virus

1 to 4 days

Influenza virus

18 to 72 hours

Streptococcus pneumonia

1-3 days

Klebsiella Pneumonia

1-3 days

Mycoplasma Pneumonia

2-10 days

Incubation period of some of the common causes of fever is given below in table 2.

Table 2


Incubation period


10-20 days (can range from 3 to 60 days)


10 days to four weeks (range seven days after infection, or as late as several years later)

Dengue fever

The duration typically spans from 4 to 7 days, with a range of 3 to 14 days.