It allows our friend’s body to recognize viruses and learn how to fight them when their body encounters them. It is important for both indoor and outdoor cats. If it’s not done, when they contract a disease, treatment can be inconclusive and there have been cases that have resulted in death. It prevents infections, distemper, and colds. It helps to prevent bloody diarrhea and protects the respiratory tract and eye structures. Besides, it prevents them from becoming infected. After a 2-month-old kitten’s internal and external parasite vaccine is administered, the first dose of combination vaccine is given, and the second dose can be completed after 21 days. It is repeated 2 times during the kittenhood period and then every year. It is very normal to see weakness and fever after vaccination. If diarrhea or vomiting persists after the first day, you should visit your veterinarian. Never forget to get your little friend’s combination vaccine.