Which one of the following statements is not correct?
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- AHepatitis B virus is transmitted much like HIV.
- BHepatitis B, unlike Hepatitis C, does not have a vaccine.
- CGlobally, the number of people infected with Hepatitis B and C viruses are several times more than those infected with HIV.
- DSome of those infected with Hepatitis B and C viruses do not show the symptoms for many years.
Show answer
Answer: (B) Hepatitis B, unlike Hepatitis C, does not have a vaccine.
The correct answer is (B) — this is the INCORRECT statement.
The statement says 'Hepatitis B does not have a vaccine' — this is wrong because a safe and effective Hepatitis B vaccine DOES exist and is given to all infants within 24 hours of birth.
In contrast, there is currently NO vaccine for Hepatitis C. So the statement has it backwards.
The other statements are true:
- Hepatitis B spreads like HIV through body fluids (A),
- Hepatitis B and C infect far more people worldwide than HIV (C),
- and many infected people show no symptoms for years (D).
Tip: Hepatitis B HAS a vaccine, Hepatitis C does NOT. Don't mix them up!
Hepatitis B vaccine is part of India's Universal Immunization Programme and given to all newborns within 24 hours of birth, while Hepatitis C has no vaccine.
UPSC tests vaccine availability because it directly impacts public health policy - countries can prevent Hepatitis B through vaccination but can only treat Hepatitis C after infection.
Hepatitis B Virus
Science And Technology Hepatitis B vaccine
Hepatitis B: Transmission, Vaccination & UPSC Facts
Hepatitis B vaccine exists and is given to infants within 24 hours of birth
Spreads through blood, semen, and body fluids - same routes as HIV
Can remain asymptomatic for years before causing liver damage
Part of India's Universal Immunization Programme (UIP)
What is Hepatitis B
Hepatitis B virus (HBV) attacks the liver and can cause both acute and chronic disease. It spreads through contact with infected blood and body fluids - making it a major global health concern.
Transmission Routes
Mother-to-child during childbirth (most common in endemic areas)
Unprotected sexual contact with infected person
Contaminated needles and medical instruments
Blood transfusions with unscreened blood
Sharing razors or toothbrushes with infected individuals
Hepatitis B Vaccine
Safe and effective vaccine available since 1982
Given to all newborns within 24 hours of birth
3-dose schedule: at birth, 1-2 months, and 6 months
Provides 95% protection against chronic infection
Lifelong immunity in most vaccinated individuals
Question Context
This UPSC question tested the common confusion between Hepatitis B and C vaccines. The trap was statement B which incorrectly claimed Hepatitis B lacks a vaccine - when actually it's Hepatitis C that has no vaccine.
Trap: Hepatitis B has NO vaccine ❌ - Actually, Hepatitis B HAS a vaccine, Hepatitis C does NOT
Confusion: Mixing up Hepatitis A, B, C vaccines - A and B have vaccines, C does not
Transmission mix-up: All hepatitis viruses spread the same way ❌ - Hepatitis A spreads fecal-oral, B & C through blood
Hepatitis C Virus
Science And Technology Hepatitis C vaccine
Hepatitis C: No Vaccine Available & Key Facts
No vaccine available for Hepatitis C (unlike Hepatitis A & B)
Spreads primarily through contaminated blood contact
Often asymptomatic for decades - called 'silent epidemic'
Curable with direct-acting antivirals but expensive treatment
Why No Vaccine
Hepatitis C virus (HCV) mutates rapidly and exists in multiple genotypes, making vaccine development extremely challenging. Unlike Hepatitis A and B, no effective vaccine has been developed despite decades of research.
Hepatitis Vaccine Comparison
Hepatitis Type | Vaccine Available | Transmission | Prevention |
|---|---|---|---|
Hepatitis A | ✅ Yes | Fecal-oral route | Vaccine + hygiene |
Hepatitis B | ✅ Yes | Blood & body fluids | Vaccine (given at birth) |
Hepatitis C | ❌ No | Blood contact | Avoid contaminated needles |
Hepatitis D | ❌ No* | Co-infection with B | *Hepatitis B vaccine prevents D |
Hepatitis E | Limited | Fecal-oral route | Hygiene, safe water |
Hepatitis C Key Facts
71 million people chronically infected worldwide
Silent infection - 80% show no symptoms initially
Can lead to liver cirrhosis and cancer if untreated
Curable in 95% cases with 8-12 weeks of oral medication
Major Trap: Hepatitis C has a vaccine ❌ - Only A and B have vaccines, C does NOT
Genotype confusion: All hepatitis viruses are the same ❌ - C has 6 major genotypes, complicating treatment
HIV vs Hepatitis B Transmission
Science And Technology HIV transmitted much like
HIV vs Hepatitis B: Shared Transmission Routes
Both spread through blood, semen, and vaginal fluids - same primary routes
Hepatitis B is 50-100x more infectious than HIV from needle-stick injury
Hepatitis B vaccine prevents infection, no HIV vaccine yet available
Both can spread mother-to-child during childbirth
HIV vs Hepatitis B Transmission
Transmission Route | HIV | Hepatitis B | Key Difference |
|---|---|---|---|
Sexual contact | ✅ High risk | ✅ High risk | Both equally risky |
Contaminated needles | ✅ Moderate risk | ✅ Very high risk | HBV 50-100x more infectious |
Mother-to-child | ✅ 25% without treatment | ✅ 90% if mother HBeAg+ | HBV higher transmission rate |
Blood transfusion | ✅ Near 100% | ✅ Near 100% | Both almost certain |
Casual contact | ❌ No risk | ❌ No risk | Neither spreads casually |
Why Statement A is Correct
Same body fluids: Both viruses present in blood, semen, vaginal secretions
Same risk behaviors: Unprotected sex, sharing needles, contaminated medical equipment
Same prevention methods: Safe sex, sterile needles, blood screening
Neither spreads through: Saliva, sweat, tears, casual contact, sharing food
Infectivity confusion: HIV and Hepatitis B equally infectious ❌ - Hepatitis B is 50-100x more infectious
Casual transmission myth: Either virus spreads through casual contact ❌ - Both require body fluid contact
Global Hepatitis vs HIV Numbers
Science And Technology Globally several times more
Global Disease Burden: Hepatitis B & C vs HIV
Combined Hepatitis B+C infections outnumber HIV by approximately 3:1 globally
Hepatitis B: ~290 million chronic infections worldwide
Hepatitis C: ~70 million chronic infections worldwide
HIV: ~38 million people living with HIV globally
Global Infection Numbers
Virus | Global Infections | Annual Deaths | Regional Hotspots |
|---|---|---|---|
Hepatitis B | ~290 million chronic | ~820,000 | Sub-Saharan Africa, East Asia |
Hepatitis C | ~70 million chronic | ~290,000 | Eastern Europe, Central Asia |
HIV | ~38 million living | ~690,000 | Sub-Saharan Africa |
Combined HBV+HCV | ~360 million | ~1.1 million | Overlaps with HIV regions |
Why Hepatitis Numbers Are Higher
Longer history: Hepatitis B has infected humans for thousands of years
Higher infectivity: Especially Hepatitis B is more contagious than HIV
Mother-to-child spread: Very efficient in endemic regions
Underdiagnosis: Many don't know they're infected due to no symptoms
Question Context
Statement C in the question correctly noted that Hepatitis B and C combined infect several times more people than HIV globally. This reflects the high infectivity and chronic nature of viral hepatitis.
Numbers confusion: HIV infects more people than Hepatitis ❌ - Combined Hepatitis B+C infections are ~3x higher
Deaths vs infections: More people die from HIV ❌ - Hepatitis causes more deaths annually than HIV