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The Sims 4 My First Pet Stuff: All About The Rabid Rodent Fever

Many Simmers will remember the terrifying and deadly Guinea Pig Disease from The Sims: Livin’ Large. Well fast forward to the new My First Pet Stuff stuff pack and the deadly disease is back. Appropriately named Rabid Rodent Fever this article will take you through the various stages of the disease, what you can do to protect your Sims from becoming a victim of it and how to ultimately avoid death!

So your Sims have recently purchased a new friendly family rodent and you’re excited to have them in your home but you may be wondering how does Rabid Rodent Fever occur and how do you prevent your Sims from getting it. The simplest way to put it is if you don’t look after your little friend and don’t clean their cages then they will bite you and then it is a matter of Sim hours until your Sim starts to show symptoms.

Waiting for your rodent’s cage to become dirty can take a while. Once the cage is dirty, I found that the easiest way to get bitten by your rodent friend is to have a negative relationship with them and then to interact with them by playing with them. It can sometimes take a few interactions with your pet before you become bitten.

Now that you’ve been bitten by your pet you start the waiting game. You’ll initially get a Tense +1 moodlet stating that you’ve been bitten and it usually lasts for around two Sim hours before turning into a Transmissible Rodent Disease.

Day One:

Feeling Fuzzy: “Your Sim doesn’t feel so good… Their head is pounding and they can’t shake this cough” Becomes Fuzzy Fever in: 22 Hours (Uncomfrotable +1)

Once the Tense moodlet has run out you are presented with a new Uncomfortable +1 moodlet and also a notification stating that your Sim has contracted a serious sickness. This new moodlet will last for twenty-four hours before turning into the next stage of the fever. At this stage, it is important to note that if your Sim heads over to the computer they can research about Rabid Rodent Fever and help prevent it and find a treatment. You’ll also notice that your Sim will be coughing and sneezing and their needs still managable.

Day Two:

Fuzzy Fever: “Your Sim’s cough has turned into a full blown fever. Those dizzy spells can’t be a good sign, and they are losing control of their bladder. They should research their fever on a computer to find a cure” Becomes Rabid Rodent Fever in: 23 Hours (Uncomfortable +2)

Although day two is very similar to the first twenty-four hours of the disease you will notice that your Sim is more uncomfortable and this is due to the Uncomfortable +2 moodlet. You will also notice that your Sims bladder and hygiene needs will decreaser a lot quicker than normal. You Sim will notcibly be coughing, sneezing and have some dizzy spells.

Day Three:

Rabid Rodent Fever: “It’s a full blown outbreak of Rabid Rodent Fever! Your Sim looks delirious, and they are dangerously contagious. Their condition is rapidly deteriorating; they should use a computer to research their illness or consult with a veterinarian immediately. Failure to seek help could result in grave consequences…” Death in 24 Hours (Dazed +2)

The final twenty-four hours you will find that your Sim is highly contagious and other Sims (Teen, Young Adult, Adult and Elder) can contract the deadly disease. There is still time to treat any Sims that have the disease whether this is via the computer or visiting a Vet Clinic. Without treatment a visit from our favourite Grim Reaper is certain!

Your Sims will still be sneezing, coughing, feeling dizzy, feeling very hot and being sick. Their needs will be tricky to control and you’ll find them in the bathroom very often.


The Death its self is pretty horrifying the first time, to be honest. You’ll get the notification that your Sim has passed away due to Rabid Rodent Fever and you will then find them foaming at the mouth before falling to the floor. You will, of course, get a visit from the Grim Reaper. Grim may allow you to come back as a somewhat terrifying Ghost Hamster who will also be foaming at the mouth. Don’t worry though you’ll be able to turn your Sim back into a ‘Normal Ghost Sim’ by drinking the inoculation serum that you can purchase via the computer.

Tips to Avoid Rabid Rodent Fever:

  • Keep your Pet’s cage clean.
  • Be nice to your Pet, interact with them and don’t forget to feed them.
  • If your Sim gets bitten and it starts to turn into a fever reasearch it as soon as you can on a computer.
  • If a Sim becomes contagious because of Rabid Rodent Fever make sure they are not around other Sims.
  • You can order an inoculation for Rabid Rodent Fever which will permanently protect your Sim from getting the disease.

About the author


Hi I'm Krista aka LeeksEverywhere. I'm a Community Reporter for Sims Community and a longtime fan of The Sims. If I'm not gaming or writing I'm usually searching for unicorns.


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  • Interesting, I came here because every single one of my Sims is getting this Rodent Fever and it’s tedious having to go to every household to fix this. They own ZERO pets, they DON’T come in contact with any pets, they ALL are getting this dumb flu they have to worry about. That’s a lot of Sims I need to vaccine. I wish Sims 4 would grow up already and stop doing stupid stuff.