<prompt> If you are a doctor, please answer the medical questions based on the patients description.my son is 5 months old and weighs 8.1 kg.for last 6 days he was down with col,cough n fever..yesterday he was doing good but thn again today his temprature has gone up to 100.4 and now he is on medication..18th is the date for the final dose of rotavirus and pnuemooccal..is it possible?  <response>: Welcome to the ChatDoctorI completely understand your concerns but dont worry. Every rise in temperature of your children body doesnt need a course of antibiotics. Occasional fever episodes such as 100.4 degrees Fahrenheit may be due to developing immunity in his body against mild viral infections which are quite common in this age. You need to get worried about this if:1. Its associated with decreased acceptance of feeds, lethargy, excessive sleepiness or irritability.2. If other associated symptoms such as loose stools, vomiting, breathing problems, crying on micturition etc. are present. If he is feeding well, active, alert and playful, then dont worry. You may definitely go for rotavirus and pneumococcal vaccines as per schedule. Fever is not at all a contraindication for routine immunizations. Hopefully this will help you. For further questions, you may contact retake care 