Cancer Fighting Vaccines Parents Must Know

Cancer Fighting Vaccines Parents Must Know. A Complete Guide to Vaccines That Help Prevent Cancer

Cancer is one of the most feared diseases worldwide. However, many people are unaware that certain cancers can actually be prevented through vaccination. Modern medical science has identified specific viral infections that can trigger cancer development years later. By preventing these infections early, vaccines can dramatically reduce future cancer risk.

Today, the World Health Organization (WHO) and the U.S. Food and Drug Administration (FDA) recommend and approve vaccines that protect against major cancer-causing infections. These vaccines are considered among the greatest achievements in preventive medicine.

This article explains:

• Which vaccines help prevent cancer
• FDA and WHO approved cancer-preventing vaccines
• How they work
• Who should receive them
• Their safety and effectiveness
• Global recommendations

What Are Cancer-Preventing Vaccines?

Cancer-preventing vaccines are vaccines designed to stop infections that are known to increase cancer risk.

Unlike cancer treatment vaccines, preventive vaccines work before disease develops. They protect healthy individuals from infection-related cancers.

Currently, the two major globally recognized cancer-preventing vaccines are:

1. HPV Vaccine (Human Papillomavirus Vaccine)
2. Hepatitis B Vaccine (HBV Vaccine)

Both are strongly supported by the WHO and approved by major international regulatory authorities including the FDA.

Why Are Some Infections Linked to Cancer?

Certain viruses can:

• Enter body cells
• Damage DNA
• Cause chronic inflammation
• Trigger abnormal cell growth
• Lead to cancer over time

These cancers may develop years or even decades after infection.

Preventing the infection early can therefore reduce cancer risk significantly.

1. HPV Vaccine — The Most Important Cancer Prevention Vaccine

What Is HPV?

Human Papillomavirus (HPV) is one of the most common viral infections worldwide.

More than 100 HPV types exist, but certain “high-risk” strains are strongly associated with cancer.

Persistent HPV infection can lead to:

• Cervical cancer
• Anal cancer
• Penile cancer
• Vulvar cancer
• Vaginal cancer
• Oropharyngeal (throat) cancers

HPV Vaccine: WHO & FDA Approval

The HPV vaccine has been:

• Approved by the FDA
• Recommended globally by WHO
• Included in immunization strategies in many countries

WHO strongly supports HPV vaccination as a major tool to eliminate cervical cancer worldwide.

Which HPV Vaccines Are FDA Approved?

FDA-approved HPV vaccines include:

Gardasil 9

Protects against multiple HPV strains responsible for most HPV-related cancers.

It protects against:

• High-risk cancer-causing HPV types
• Certain wart-causing HPV strains

Gardasil 9 is currently one of the most widely used HPV vaccines globally.

Types of Cancers Prevented by HPV Vaccine

The HPV vaccine helps reduce the risk of:

• Cervical cancer
• Anal cancer
• Penile cancer
• Vaginal cancer
• Vulvar cancer
• Some throat cancers

Cervical cancer prevention is the primary public health goal.

Why Cervical Cancer Prevention Matters

Cervical cancer remains one of the leading cancers in women globally, especially in developing countries.

Many women are diagnosed late because early stages may not produce symptoms.

Vaccination combined with regular screening can dramatically reduce disease burden.

WHO has launched a global initiative aiming to eliminate cervical cancer as a public health problem.

Who Should Receive HPV Vaccine?

WHO Recommended Age Group

WHO recommends routine HPV vaccination primarily for:

• Girls aged 9–14 years

Many countries also recommend vaccination for:

• Boys aged 9–14 years

Vaccination before exposure to HPV provides the strongest protection.

Why Vaccinate Boys?

HPV also affects males.

Boys can develop:

• Penile cancer
• Anal cancer
• HPV-related throat cancers

Vaccinating boys also reduces transmission within the population.

HPV Vaccine Schedule

Age 9–14 Years

Usually:

• 1 or 2 doses depending on national guidelines

Age 15 Years & Older

Usually:

• 3-dose schedule

Schedules may vary slightly depending on:

• Country
• Vaccine type
• Immune status

Is HPV Vaccine Safe?

Yes.

Extensive global research confirms HPV vaccines are highly safe.

Common mild side effects:

• Injection site pain
• Mild fever
• Temporary fatigue
• Headache

Serious complications are extremely rare.

Millions of doses have been administered worldwide with excellent safety records.

Can HPV Vaccine Treat Existing HPV Infection?

No.

HPV vaccines:

• Prevent future infections
• Do not cure existing HPV infection
• Do not treat cancer

This is why vaccination at younger ages is strongly recommended.

2. Hepatitis B Vaccine — A Liver Cancer Prevention Vaccine

What Is Hepatitis B?

Hepatitis B is a viral infection affecting the liver.

It can cause:

• Chronic hepatitis
• Liver cirrhosis
• Liver failure
• Liver cancer (Hepatocellular carcinoma)

Chronic Hepatitis B infection is one of the leading causes of liver cancer globally.

FDA & WHO Approval of Hepatitis B Vaccine

The Hepatitis B vaccine:

• Is FDA approved
• Is strongly recommended by WHO
• Is included in national immunization programs worldwide

WHO considers universal Hepatitis B vaccination one of the most effective liver cancer prevention strategies.

How Does Hepatitis B Vaccine Prevent Cancer?

The vaccine prevents Hepatitis B infection.

Without chronic infection:

• Long-term liver inflammation decreases
• Liver scarring reduces
• Liver cancer risk falls dramatically

Thus, Hepatitis B vaccination indirectly prevents liver cancer.

Who Should Receive Hepatitis B Vaccine?

WHO Recommendations

WHO recommends:

• Universal newborn vaccination
• Childhood vaccination
• Vaccination for unvaccinated adults at risk

High-risk groups include:

• Healthcare workers
• Family members of infected individuals
• Dialysis patients
• Diabetic patients
• Individuals with liver disease

Hepatitis B Vaccine Schedule

Infants

Usually:

• Birth dose
• Followed by additional doses during infancy

Adults

Typically:

• 3-dose schedule over several months

Is Hepatitis B Vaccine Safe?

Yes.

The vaccine has been used safely for decades worldwide.

Common mild side effects:

• Pain at injection site
• Mild fever
• Fatigue

Serious adverse reactions are extremely rare.

Why These Vaccines Are a Major Public Health Achievement

These vaccines help:

• Reduce cancer burden
• Prevent premature deaths
• Lower healthcare costs
• Improve quality of life
• Protect future generations

They are among the few medical interventions capable of preventing cancer before it develops.

Common Myths About Cancer-Preventing Vaccines

Myth 1: Vaccines Cause Infertility

False.

No scientific evidence supports this claim.

Myth 2: Only Women Need HPV Vaccine

False.

Boys and men also benefit.

Myth 3: Healthy Lifestyle Alone Prevents Cancer

Partly false.

Healthy habits help greatly, but vaccines provide additional protection against infection-related cancers.

Myth 4: Vaccines Can Cause Cancer

False.

These vaccines are designed to reduce cancer risk, not increase it.

Future Cancer Vaccines Under Research

Scientists are researching vaccines against:

• Epstein-Barr Virus (EBV)
• Hepatitis C
• Certain stomach cancer-related infections

Researchers are also developing therapeutic cancer vaccines that may help the immune system fight existing cancers.

Additional Ways to Reduce Cancer Risk

Vaccination should be combined with:

• Avoiding tobacco
• Limiting alcohol
• Maintaining healthy weight
• Exercising regularly
• Eating healthy food
• Controlling obesity and diabetes
• Regular cancer screening
• Treating chronic infections early

Final Message

Cancer prevention is one of the greatest opportunities in modern medicine.

Currently, WHO and FDA strongly support two major cancer-preventing vaccines:

• HPV Vaccine
• Hepatitis B Vaccine

These vaccines are safe, effective, and capable of preventing thousands of cancer cases worldwide every year.

Early vaccination, combined with healthy lifestyle and regular screening, can significantly reduce future cancer burden.

Dr Avinash Tank (MS, MCh, SGPGIMS)
Dwarika Gastro & Weight Loss Super-speciality Hospital, Ahmedabad