Which of the following diseases can be transmitted from one person to another through tattooing? 1. Chikungunya 2. Hepatitis B 3. HIV-AIDS Select the correct answer using the codes given below:
Contents15
- A1 only
- B2 and 3 only
- C1 and 3 only
- D1, 2 and 3
Show answer
Answer: (B) 2 and 3 only
Tattooing involves piercing the skin with needles/pins and injecting ink.
If the equipment is contaminated with infected blood, blood-borne diseases can be transmitted.
Hepatitis B (2) — YES, can be transmitted through tattooing.
Hepatitis B and C viruses can cause serious liver damage and are known to be transmittable through tattooing.
Hepatitis B is particularly dangerous because it can survive outside the host body for up to two weeks and resists most normal forms of disinfection.
The risk of hepatitis transmission through accidental needle stick is about 1 in 5 — much higher than HIV.
HIV-AIDS (3) — YES, can be transmitted, though the risk is lower than hepatitis.
Tattoo 'needles' are actually solid-core pins (not hollow needles like syringes), so the amount of blood that adheres to the surface is small.
The contaminated blood mixed with ink must adhere to the pin surface and enter the new person's bloodstream.
The risk of HIV transmission through needle stick is about 1 in 200.
Chikungunya (1) — NO, cannot be transmitted through tattooing.
Chikungunya is a MOSQUITO-BORNE disease (transmitted by Aedes mosquitoes).
It is NOT a blood-borne disease in the sense of transmission through needles or tattoo equipment.
So only statements 2 and 3 are correct.
Hepatitis B and HIV are blood-borne pathogens that can survive on contaminated tattoo equipment and enter the bloodstream through skin piercing.
Chikungunya is transmitted only by Aedes mosquitoes, not through blood contact or contaminated needles, making it impossible to transmit through tattooing.
Blood-Borne Diseases & Transmission
Science And Technology Hepatitis B HIV-AIDS tattooing
Blood-Borne Diseases: Transmission Routes & Risk Factors
Hepatitis B and HIV are blood-borne diseases transmissible through contaminated needles/tattoo equipment
Hepatitis B has higher transmission risk (1 in 5) than HIV (1 in 200) via needle stick
Hepatitis B virus survives outside body for up to 2 weeks and resists normal disinfection
Blood-borne transmission requires infected blood entering another person's bloodstream
What Are Blood-Borne Diseases
Blood-borne diseases are infections transmitted when infected blood enters another person's bloodstream. This happens through parenteral routes — piercing the skin barrier via needles, cuts, or medical procedures.
Major Blood-Borne Diseases
Disease | Virus/Pathogen | Transmission Risk | Survival Outside Body | Key Feature |
|---|---|---|---|---|
Hepatitis B | HBV | 1 in 5 needle sticks | Up to 2 weeks | Resists normal disinfection |
Hepatitis C | HCV | 1 in 30 needle sticks | Several days | Chronic liver infection |
HIV/AIDS | HIV | 1 in 200 needle sticks | Few hours | Attacks immune system |
Tattooing Risk Factors
Tattoo pins are solid-core (not hollow like syringes) — smaller blood volume transferred
Contaminated blood mixes with ink and adheres to pin surface
Risk increases with unsterilized equipment, reused needles, and poor hygiene practices
Professional tattoo parlors use autoclave sterilization and single-use needles to prevent transmission
Hepatitis B poses highest risk due to virus stability and high concentration in blood
Chikungunya is mosquito-borne, NOT blood-borne — cannot transmit via tattooing
Don't confuse vector-borne (mosquito) with blood-borne (needle/blood contact) diseases
Hepatitis A is NOT blood-borne — it's transmitted via contaminated food/water
HIV risk through tattooing is real but lower than hepatitis — both can transmit
Chikungunya: Vector-Borne Disease
Science And Technology Chikungunya
Chikungunya: Mosquito-Borne Viral Disease
Chikungunya is transmitted only by Aedes aegypti and Aedes albopictus mosquitoes
Cannot be transmitted through blood contact, needles, or tattooing
Causes sudden fever, severe joint pain, and rash
Transmission Mechanism
Chikungunya is an arboviral disease (arthropod-borne virus). The Aedes mosquito becomes infected when it bites a person with chikungunya viremia. The virus multiplies in the mosquito and can then be transmitted to other humans through subsequent bites.
Chikungunya vs Blood-Borne Diseases
Feature | Chikungunya | Hepatitis B/HIV |
|---|---|---|
Transmission | Mosquito bite only | Blood contact |
Vector | Aedes aegypti/albopictus | No vector needed |
Needle Risk | No transmission | High transmission risk |
Prevention | Mosquito control | Sterile equipment |
Epidemic Pattern | Seasonal outbreaks | Continuous transmission |
Vector-Borne Disease Classification
# Vector-Borne Diseases
## Mosquito-Borne
- **Chikungunya**
- **Dengue**
- **Malaria**
- **Zika**
## Tick-Borne
- Lyme Disease
- Rocky Mountain Spotted Fever
## Fly-Borne
- Leishmaniasis
- Sleeping SicknessChikungunya sounds medical/serious — students wrongly assume it's blood-borne
Don't confuse Aedes mosquito diseases (Chikungunya, Dengue, Zika) with blood-borne diseases
Vector-borne means needs an intermediate organism — cannot transmit directly human-to-human
Hepatitis Types & Transmission Routes
Science And Technology Hepatitis B
Hepatitis Viruses: Types & Transmission Patterns
Hepatitis B and C are blood-borne — transmit via needles, blood transfusion
Hepatitis A and E are enteric — transmit via contaminated food/water
Hepatitis B vaccine is part of India's Universal Immunization Programme
Hepatitis Virus Types
Type | Transmission Route | Chronic Infection | Vaccine Available | Prevention |
|---|---|---|---|---|
Hepatitis A (HAV) | Fecal-oral (food/water) | No | Yes | Sanitation, vaccination |
Hepatitis B (HBV) | Blood, sexual contact | Yes | Yes | Vaccination, safe practices |
Hepatitis C (HCV) | Blood contact | Yes | No | Sterile equipment |
Hepatitis D (HDV) | Co-infection with HBV | Yes | HBV vaccine prevents | HBV vaccination |
Hepatitis E (HEV) | Fecal-oral (water) | Usually no | Limited | Safe water |
Hepatitis B: High-Risk Features
Most stable hepatitis virus — survives up to 2 weeks on surfaces at room temperature
100 times more infectious than HIV through blood contact
Can cause chronic liver disease, cirrhosis, and liver cancer
Mother-to-child transmission during childbirth is common without vaccination
India has intermediate endemicity — 2-8% population carries HBV
Hepatitis A is NOT blood-borne — it's enteric (food/water transmission)
Don't assume all hepatitis viruses transmit the same way — A/E are enteric, B/C are blood-borne
Hepatitis B is vaccine-preventable — Hepatitis C currently has no vaccine
Chronic hepatitis only develops with HBV and HCV — not with HAV
HIV-AIDS: Transmission & Risk Assessment
Science And Technology HIV-AIDS
HIV-AIDS: Virus Characteristics & Transmission Routes
HIV attacks CD4+ T-cells leading to immunodeficiency (AIDS)
Transmits through blood, sexual contact, mother-to-child — needle stick risk 1 in 200
Antiretroviral Therapy (ART) can control virus but no cure exists
HIV survives only few hours outside the human body
HIV Transmission Mechanism
Human Immunodeficiency Virus (HIV) is a retrovirus that integrates into host cell DNA. It primarily targets CD4+ T-helper cells, gradually destroying the immune system over years, eventually leading to Acquired Immunodeficiency Syndrome (AIDS).
HIV Transmission Routes & Risk Levels
Transmission Route | Risk Level | Risk Per Exposure | Prevention Method |
|---|---|---|---|
Blood transfusion | Very High | >90% | Screening donated blood |
Needle sharing (drugs) | High | 1 in 150 | Needle exchange programs |
Needle stick (medical) | Low | 1 in 200 | Universal precautions |
Unprotected sex | Moderate | 1 in 500-2000 | Condoms, PrEP |
Mother-to-child | Variable | 15-45% without treatment | ART during pregnancy |
India's HIV Scenario
India has the third-largest HIV epidemic globally (around 2.1 million people living with HIV)
National AIDS Control Organisation (NACO) implements prevention and treatment programs
Free ART provided through government health centers since 2004
Major transmission routes in India: heterosexual contact (87%), mother-to-child (6%)
Pre-Exposure Prophylaxis (PrEP) now available for high-risk groups
HIV transmission risk through tattooing is real but lower than hepatitis — both are correct answers
Don't confuse HIV (virus) with AIDS (syndrome) — HIV causes AIDS over time
Casual contact cannot transmit HIV — only blood, sexual, or mother-to-child routes
HIV is fragile outside body (dies in hours) unlike Hepatitis B (survives weeks)