Being unvaccinated poses significant health risks to both individuals and their communities, including a much higher likelihood of contracting serious, potentially fatal, diseases.

What happens if you are unvaccinated?

Unvaccinated children can infect pregnant women, the elderly, and immune-compromised people who may not be able to get vaccinated or would have a weak immune response. During disease outbreaks, unvaccinated children may be excluded from school or child care to protect them and others.

What are the risks of not being vaccinated?

And if it weren't for vaccinations, many children could become seriously ill or even die from diseases such as measles, mumps and whooping cough. See "The Diseases Vaccines Prevent and How" for more information.

Do unvaccinated kids get sick more?

The prevalence of allergic diseases and non-specific infections in children and adolescents was not found to depend on vaccination status.

What will happen if there are no vaccines?

However, the viruses and bacteria that cause vaccine-preventable disease and death still exist and can be passed on to people who are not protected by vaccines. Vaccine-preventable diseases have many social and economic costs: sick children miss school and can cause parents to lose time from work.

What I learned from parents who don't vaccinate their kids | Jennifer Reich | TEDxMileHigh

Can you live a healthy life without vaccines?

If you skip vaccines, you may be at risk for diseases including flu, measles, and HPV and hepatitis B–both leading causes of cancer. Like eating healthy and exercising, vaccines help play a vital role in protecting your health.

What are the disadvantages of vaccination?

So, what about the cons of vaccinations?

• No one wants to be jabbed in the arm – it hurts.
• Some vaccines require more than one dose or top ups – this can be time consuming.
• You can experience mild to moderate symptoms and in very occasional cases, a severe reaction.

Is it safe to have no vaccines?

Other diseases like measles and diphtheria have reduced to a very low number of cases each year since vaccines were introduced. These cases are often related to travel. However, if people stop having vaccines, it's possible for infectious diseases to quickly spread again.

When did people start refusing vaccines?

The Anti-Vaccination Society of America was founded in 1879, after a visit to the United States by British anti-vaccine activist William Tebb, and opposed compulsory smallpox vaccination for smallpox from the final decades of the 19th century through the 1910s.

What countries do not vaccinate children?

Disease prevention

According to data published by the World Health Organization (WHO) and UNICEF, North Korea, Papua New Guinea, Somalia, the Central African Republic, and Sudan are the countries where the proportion of children not vaccinated against diphtheria, tetanus, and pertussis was the highest.

What happens if I stop vaccinating my child?

Delaying or refusing some or all vaccines for your child puts their health and life at risk. It also risks the health of other people. Those most at risk include: People with weakened immune systems due to other diseases or medications they are taking.

Is it bad to not get baby vaccines?

Vaccines protect people from serious infectious diseases that once harmed many infants, children, and adults and caused deaths every year. Without vaccines, your child is at risk of getting seriously ill and suffering ongoing complications, and even death from diseases like measles and whooping cough.

What are the cons of not getting vaccinated?

Vaccines can prevent infectious diseases that once killed or harmed many infants, children, and adults. Without vaccines, your child is at risk for getting seriously ill and suffering pain, disability, and even death from diseases like measles and whooping cough.

When to avoid vaccination?

People with minor illnesses, such as a cold, may be vaccinated. People who are moderately or severely ill should usually wait until they recover before getting influenza vaccine. Your health care provider can give you more information. Talk with your health care provider.

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.

Do I really need to vaccinate my child?

Research shows that following U.S. vaccine recommendations is beneficial for children, their communities and the economy: A 2024 CDC report indicates, “Among children born [in the United States] during 1994–2023, routine childhood vaccinations will have prevented approximately 508 million lifetime cases of illness, 32 ...

Do vaccines affect your immune system?

Immunization with vaccines, like natural infections, typically induces long-lived immunity. But unlike natural infection, immunization does not extract such a high price for immunity; that is, immunization does not cause pneumonia, intellectual disability, birth defects, cancer or death.

What diseases are coming back due to lack of vaccination?

Recent Outbreaks

Get the latest on measles outbreaks, and make sure your family is up-to-date on MMR vaccination to prevent measles. Whooping Cough: So far in 2025, there are more than double the number of cases of pertussis, or whooping cough, as in the same time period in 2024.

Do unvaccinated children get sick less?

The best protection against complications and death from these diseases are vaccines. Waiting to vaccinate a baby or child against these diseases puts them at increased risk of becoming severely ill, or even dying, if and when they are exposed.

Can doctors refuse to treat unvaccinated children?

In general, no, a physician should not refuse a patient simply because the individual is not vaccinated or declines to be vaccinated.

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