What is considered a temperature in 4 month old..does vaccinations raises temperature??

Temperature: A rectal temp of 38 degrees centigrade or a temp of 100.4 F is considered a fever. Certain vaccines can cause elevated temperatures. The MMR is a prime example , although the temperature onset is delayed. The dptshot can also cause fever in some children

100.4: 100.4 F or 38 C is generally considered the threshold for the fever, regardless of age. Low-grade temperature can be a response to a vaccine, and some vaccines, such as the standard DTaP shot, can sometimes produce a high-grade fever.