An F3 injection (or F3 vaccination) is a core vaccine for cats that protects against three major diseases: Feline Panleukopenia (parvovirus), Feline Calicivirus, and Feline Herpesvirus. It is considered essential for all cats, regardless of whether they are indoor or outdoor pets, and is commonly referred to as a "3-in-1" or "cat flu" vaccine, typically administered at 8, 12, and 16 weeks of age.

Do cats really need a feline leukemia vaccine?

Infected cats may suffer from anemia, immune suppression, and cancer. FeLV vaccination is considered a core vaccine for all cats less than one year of age and a non-core vaccine for cats one year of age and older that have no potential for exposure to FeLV-infected cats or cats of unknown FeLV status.

How much does the F3 vaccine cost for cats?

Consultation / Vaccination Fees

F3 vaccinations for Cats are $125 (Includes clinical health check exam.)

Why is the FIP vaccine not recommended?

The FIP Vaccine: Why We Don't Recommend It

Multiple studies have shown that the FIP vaccine has limited to no real-world efficacy, especially in multi-cat households or shelters — the very environments where the virus is most likely to mutate.

What injections do they have at 3?

Children who are in risk groups and cannot have the nasal spray will be offered a vaccination by injection. Diphtheria, tetanus, pertussis (whooping cough) and polio (dTaP/IPV or DTaP/IPV) One injection at 3 years and four months of age This is a booster dose of these vaccines.

Gonal-f Pen Injection - How to use!

How many injections is the 3 year booster?

The 4-in-1 pre-school booster is recommended for children aged 3 years, 4 months old before they start school. They're given 1 dose of the vaccine as part of the NHS vaccination schedule. If your child has missed their 4-in-1 pre-school booster, contact their GP surgery.

What are the side effects of the FIP injection?

Most cats with FIP begin showing clear signs of recovery within the first 3–7 days of GS treatment. Appetite, energy levels, and fever are usually the first signs to normalize. Some mild side effects such as fatigue, digestive changes, or skin irritation from injections may occur.

How contagious is FIP?

Symptoms still involve fevers and poor appetite with the dry form but also commonly involve deep inflammation in the eyes and nervous system. Both the wet and dry forms have been felt to have 100% mortality, though recently some newer treatments have brought some hope. IS FIP CONTAGIOUS? Very simply, the answer is no.

Is FIP the same as cat flu?

Its correlation to FIP in Cats

Feline Infectious Peritonitis (FIP) is a disease that is often mistaken for flu in cats. Although they have similar symptoms, FIP is caused by a different virus and is more severe. FIP is caused by the coronavirus that is found in cats.

Do indoor cats need F3 vaccination?

Vaccination schedule

We recommend giving a F3 booster to your kitten at 6-9 months of age to ensure complete protection. After this, indoor only cats will need a F3 booster every 3-years.

What are the side effects of the F3 shot for cats?

Usually there are no side effects to the F3. Occasionally a cat may feel lethargic or develop a localised reaction to the injection site. This is not serious, but let us know so that we can be sure to dispense appropriate medications to relieve irritation at the next vaccination.

How long does a microchip last in a cat?

Microchips are designed to last for 25 years, well over the average life expectancy for cats and dogs. This means that they will take care of your pet for their entire life. It's important to remember to update your contact information on the microchip's registry if you move or get a new phone number.

Which vaccine is not recommended for cats?

The Task Force lists the feline infectious peritonitis (FIP) vaccine as not generally recommended. This vaccine is labeled for administration from 16 weeks of age, whereas many kittens become infected with coronaviruses well before this age.

What is the 3/2/1 rule for cat vaccines?

The "3-2-1 rule" for cat vaccines is a guideline to monitor for rare, but serious, injection-site sarcomas (cancers): if a lump at the injection site lasts 3 months or longer, is bigger than 2 centimeters, or is growing larger after 1 month, it needs a biopsy to rule out cancer, as recommended by the American Animal Hospital Association (AAHA) and American Association of Feline Practitioners (AAFP) guidelines, the American Veterinary Medical Association (AVMA), and the ABCD vets (ABCD cats & vets).
 

How did my indoor cat get FIP on Reddit?

FIP is not a contagious disease. It is a mutation of the coronavirus (which nearly all cats are carriers of) and the mechanism that causes an individual cat to experience that mutation is not well understood.

Where did my cat get FIP from?

Most cats become infected with feline coronavirus through the fecal-oral route (oral contact with infected feces). It is estimated that about one-third of these cats shed the virus in their feces. Most cats only shed the virus for a few months, but a small percentage will shed the virus continuously for life.

What breeds of cats get FIP?

Our results show that certain breeds may in fact be more likely to develop FIP, particularly the Birman, Ragdoll, Bengal, Rex, Abyssinian, and Himalayan breeds.

How do cats pass FIP to each other?

The primary mode of transmission for FIV is through bite wounds from an infected cat. Casual, non-aggressive contact, such as sharing water bowls or mutual grooming, does not appear to be an efficient route of spreading the virus.

What are the first signs of FIP in cats?

Regardless of which form they ultimately progress to develop, cats infected with FIPV usually first develop nonspecific signs of disease such as loss of appetite, weight loss, depression, and fever. It is also important to note that cases of the effusive form of FIP can evolve into the non-effusive form and vice-versa.

Is a FIP injection painful?

While the medication has been effective in treating the disease, it may cause pain during administration. The composition of GS-441524 includes Ethanol, Propylene Glycol, PEG400, and water with a pH of 1.5, which can cause pain and discomfort when injected into living tissue.

What does a FIP belly look like?

A cat with wet FIP (Feline Infectious Peritonitis) gets a swollen, "pot-bellied" belly due to fluid (effusion) buildup in the abdomen, making it feel tight, inflated, and sometimes like a water balloon, despite the cat often losing weight, making their spine and hips prominent. This thick, straw-colored fluid leaks from damaged blood vessels, causing bloating and potential breathing issues if it also fills the chest.

How long is baby poop contagious after rotavirus vaccine?

The weakened rotavirus from the vaccine may be found in stools for up to 28 days after the first immunisation and up to 15 days after the second dose.

What vaccines are no longer recommended for children?

Recent major changes (early 2026) to U.S. federal vaccine guidelines removed universal recommendations for rotavirus, COVID-19, influenza, hepatitis A, hepatitis B, and meningococcal vaccines, shifting them to "shared clinical decision-making" (SCDM) or specific high-risk criteria, meaning parents must consult providers, while also reducing HPV doses. Vaccines for measles, polio, chickenpox, etc., remain routine, but families now need provider discussions for the shifted vaccines to determine individual necessity.

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