Rabies vaccine disadvantages are mostly mild, common side effects like soreness, redness, swelling, or itching at the injection site, headaches, muscle aches, nausea, dizziness, and fever, which usually resolve quickly. Serious disadvantages like severe allergic reactions (anaphylaxis) or Guillain-Barré Syndrome (GBS) are extremely rare, but require immediate medical attention for symptoms like hives, facial swelling, or difficulty breathing. The benefits of preventing deadly rabies far outweigh these risks.

Is there any harm in getting rabies vaccines?

Serious problems from rabies vaccine are very rare. Other nervous system disorders, such as Guillain Barré syndrome (GBS), have been reported after rabies vaccine, but this happens so rarely that it is not known whether they are related to the vaccine.

What are the disadvantages of rabies vaccines?

Slight side effects like fever, weakness, headache, nausea, local pain and swelling usually occurred in patients following rabies vaccination, among whom patients aged younger than 15 years old were more often suffered from fever, vomiting and cough.

What happens if I don't get a rabies shot?

For individuals who have been exposed to the rabies virus, failing to get post exposure prophylaxis is almost invariably fatal. Rabies has the highest case fatality rate of any infectious disease.

Who shouldn't take the rabies vaccine?

People who are moderately or severely ill should usually wait until they recover before getting a routine (pre-exposure) dose of rabies vaccine. If you have been exposed to rabies virus, you should get vaccinated regardless of concurrent illnesses, pregnancy, breastfeeding, or weakened immune system.

Is Rabies Vaccine Harming Your Pets?

Is it worth getting a rabies vaccine?

The rabies vaccine can help stop you getting symptoms if there's a chance you've been exposed to rabies (for example, you've been bitten by a dog in a country where rabies is common). Get medical help as soon as possible if you think you may have been exposed to rabies.

When was the last human rabies case in the US?

In November 2024, a California art teacher died from rabies, about a month after being bitten by a bat she found in her classroom. In 2024, there was also a rabies human death in Minnesota (contracted from a bat), and a rabies human death in Kentucky (believed to have been acquired abroad).

Do I really need a rabies shot?

Any mammal can get rabies, but some are at higher risk. Your health department can determine if you should get vaccinated. People who need the vaccine and don't get it before symptoms start will most likely die, so assessment is critical.

What are the first signs of rabies in humans?

Early signs of rabies in humans are often flu-like (fever, headache, weakness, discomfort) and include unusual tingling, itching, or pain at the bite site, lasting several days before more severe neurological symptoms like anxiety, confusion, and hallucinations develop as the virus reaches the brain.
 

What not to do after rabies vaccine?

Avoid strenuous activities: Avoid heavy physical activities, such as lifting weights or intense exercise, immediately after your vaccination. Resting helps your body focus on processing the vaccine.

What neurological conditions can rabies vaccines trigger?

Rabies vaccines containing neural elements of animals are associated with neurological complications like encephalitis, encephalomyelitis, myeloradiculitis and polyradiculitis. Newer generation cell culture rabies vaccines should be preferred over neural tissue rabies vaccines for post-exposure prophylaxis.

What are the bad side effects of rabies vaccines?

Soreness, redness, swelling, or itching at the site of the injection, and headache, nausea, abdominal pain, muscle aches, or dizziness can happen after rabies vaccine. Hives, pain in the joints, or fever sometimes happen after booster doses.

Is 7 days too late for rabies vaccine?

Even if you have been bitten a few days, weeks or months ago, it is never too late to start. The rabies virus can incubate for several years before it causes symptoms. If you wait until you get symptoms, it will be too late – there is no treatment for established rabies …

Has anyone died from rabies in 2025?

Rabies is almost always fatal without postexposure prophylaxis (PEP). What is added by this report? In February 2025, CDC confirmed a fatal rabies case in a patient who had received a transplanted kidney from a deceased donor with undiagnosed rabies.

Why can't the body fight off rabies?

HOST IMMUNE RESPONSE

Rabies virus does cause immunosuppression of the CMI response through enhancement of suppressor T-cell action. A state of anergy develops in which cytotoxic T-cells fail to act against rabies and other antigens.

What is the deadliest virus on Earth?

Using the “case fatality rate” metric to determine what virus is the deadliest, rabies would likely come out on top. That's because, if an infection becomes symptomatic, rabies is fatal to humans in more than 99 percent of cases. Globally, approximately 59,000 people die from rabies every year.

How common is rabies in the US?

In the U.S., around 4,000 animal rabies cases are reported each year, with more than 90% occurring in wildlife like bats, raccoons, skunks, and foxes. This is a big change from the 1960s, when domestic animals, mainly dogs, represented most of the rabies cases.

What is the truth about the rabies vaccine?

Scientists don't know exactly why rabies vaccines don't provide long-term protection, but they do know that its shape-shifting proteins are a problem. Like a Swiss Army knife, the rabies glycoprotein has sequences that unfold and flip upward when needed.

Should you get a rabies shot just to be safe?

Yes. Pre-exposure prophylaxis vaccination is recommended for people who work directly with animals that could have rabies—such as veterinarians or wildlife workers—or for travelers visiting parts of the world where the disease is common and access to emergency medical care is limited.

Why can't we cure rabies?

Why is there no cure for rabies? There's no cure for rabies once it's moved to your brain because it's protected by your blood-brain barrier. Your blood-brain barrier is a layer between your brain and the blood vessels in your head.

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