Chickenpox Vaccine
Chickenpox, once considered a routine part of childhood, is now a preventable disease thanks to the availability of the chickenpox vaccine. Known medically as the varicella vaccine, this immunisation plays a vital role in reducing both the spread and severity of the disease. Among the various options available globally, Varivax is one of the most trusted and widely used vaccines. In this comprehensive guide, we will explore what chickenpox is, the significance of the vaccine, details about Varivax, its availability and cost in Bangladesh, and essential information you need to know before getting vaccinated.
What Is Chickenpox?
Chickenpox is a highly contagious infection caused by the varicella-zoster virus (VZV). It is characterised by an itchy rash, red spots, and fluid-filled blisters, typically starting on the face and torso before spreading to other parts of the body. While it is generally mild in children, chickenpox can be severe in adults and individuals with weakened immune systems. Serious complications include:
- Pneumonia
- Brain inflammation (encephalitis)
- Bacterial infections of the skin
- Hospitalization
- In rare cases, death
Before the introduction of the vaccine, chickenpox affected millions of people annually and was responsible for thousands of hospitalisations.
What Is the Chickenpox Vaccine Called?
The chickenpox vaccine is also known as the varicella vaccine, named after the virus it protects against. One of the most well-known and FDA-approved versions of the varicella vaccine is Varivax.
According to the U.S. Food and Drug Administration (FDA) and MerckVaccines.com, Varivax is the official chickenpox vaccine name that is used in immunisation programs around the world, including in Bangladesh.
History: When Was the Chickenpox Vaccine Invented?
The chickenpox vaccine was first developed in Japan in the 1970s and later approved in the United States in 1995. Since then, countries that have incorporated the vaccine into their national immunisation schedules have seen a dramatic drop in chickenpox cases and related complications.
Why Do We Need a Chickenpox Vaccine?
Many people still mistakenly believe that chickenpox is a harmless childhood illness. However, the disease can lead to serious health issues, particularly in the following groups:
- Adults
- Pregnant women
- Newborns
- Immunocompromised individuals (e.g., cancer patients, those on immunosuppressive therapy)
Vaccination helps by:
- Preventing illness in vaccinated individuals
- Reducing the spread of the virus in the community
- Lowering the risk of complications
- Protecting vulnerable groups through herd immunity
Overview of Varivax: The Trusted Chickenpox Vaccine
- Brand Name: Varivax
- Generic Name: Varicella Virus Vaccine, Live
- Manufacturer: Merck & Co.
- Distributed in Bangladesh by: Healthcare Pharmaceuticals Ltd.
- Formulation: 0.5 ml/vial (for subcutaneous injection)
Varivax is a live attenuated vaccine, meaning it contains a weakened form of the varicella-zoster virus. It is designed to stimulate the body’s immune system to produce protective antibodies without causing the disease in healthy individuals.
Who Should Get the Varivax Vaccine?
Varivax is approved for use in individuals aged 12 months and older. The following groups are strongly encouraged to receive the vaccine:
- Children (first dose at 12–15 months; second dose at 4–6 years)
- Teenagers and adults who have never had chickenpox or the vaccine
- Healthcare workers
- Teachers and childcare workers
- Women of childbearing age (who are not pregnant)
- International travelers
Who Should NOT Get Varivax?
Varivax is not recommended for:
- Pregnant women or those planning pregnancy within 3 months
- Individuals with a history of severe allergic reactions to neomycin, gelatin, or any component of the vaccine
- People with weakened immune systems due to disease or medical treatment
- Those with active untreated tuberculosis
- Individuals with moderate to severe febrile illness
Chickenpox Vaccine Price in Bangladesh
As of the latest update, the price of the Varivax vaccine in Bangladesh is:
- BDT 10,823.00 for a 0.5 ml vial
The vaccine is available at specialised vaccine providers such as Pledge to Protect and select healthcare institutions. While the cost may seem high, it is a worthy investment for long-term protection against chickenpox and its complications.
How Does Varivax Work?
Varivax induces both cell-mediated and humoral immune responses against the varicella-zoster virus. This dual mechanism ensures long-term protection. Although the exact contributions of each type of immunity are unknown, both are considered essential for preventing infection.
Side Effects of the Chickenpox Vaccine (Varivax)
Most side effects are mild and resolve on their own. Common side effects include:
In children (1–12 years):
- Fever ≥102°F (14.7%)
- Redness, swelling, or pain at the injection site (19.3%)
In adolescents and adults (13+ years):
- Fever ≥100°F (10.2%)
- Injection-site complaints (24.4%)
Other possible effects:
- Mild varicella-like rash at the injection site or elsewhere
- Headache
- Tiredness or fatigue
Serious side effects are rare but may include allergic reactions or rash in immunocompromised individuals.
Special Considerations: Pregnancy & Lactation
- Pregnancy: Varivax is contraindicated due to the potential for congenital varicella syndrome. Women should avoid pregnancy for 3 months after vaccination.
- Lactation: The safety of the vaccine virus in human milk is not known. Consult your doctor before use.
Use in Pediatric and Geriatric Populations
- Pediatric: Not approved for use in children under 12 months.
- Geriatric: Insufficient data on effectiveness in individuals aged 65 and older who are seronegative.
Reconstitution and Storage Guidelines
- Reconstitute with the sterile diluent provided (no preservatives)
- Shake well until fully dissolved
- Use within 30 minutes after reconstitution
- Do not freeze the reconstituted vaccine
- Store between 2°C to 8°C, protected from light
Drug Interactions and Precautions
- Avoid salicylates (e.g., aspirin) for 6 weeks after vaccination in children due to the risk of Reye syndrome.
- Do not administer immune globulins or blood products concurrently, as they may interfere with the immune response.
- Varivax may temporarily suppress tuberculin (PPD) skin sensitivity, so consider timing if TB testing is needed.
Where to Get the Chickenpox Vaccine in Bangladesh
In Bangladesh, Varivax is available at licensed healthcare providers, clinics, and vaccine distribution centres like Pledge to Protect website. It is important to ensure that the vaccine is handled, stored, and administered properly to maintain its effectiveness.
Is the Chickenpox Vaccine Worth It?
Absolutely. The chickenpox vaccine, especially in the form of Varivax, is one of the most effective and safe ways to protect individuals and communities from a disease that, while common, can lead to severe complications. Its benefits far outweigh any temporary side effects. With the vaccine readily available in Bangladesh, parents and adults should consider it not just a preventive measure, but a vital part of long-term health planning.
chickenpox vaccine price
If you’re still wondering what the chickenpox vaccine is called, how much it costs, or how it’s used in Bangladesh, the answer is simple: Varivax is your trusted option. Speak with a healthcare provider today to learn more and protect yourself or your child.
For appointments or vaccine availability, visit: https://pledgetoprotect.net/product/varivax/