WorksheetsVector and Disease Transmission
Total questions: 11
Worksheet time: 6mins
Biological Transmission – Propagative
Agent multiplies. Example: Plague (Flea)
Agent does not multiply. Example: Malaria (Mosquito)
Agent is transmitted through direct contact. Example: HIV
Agent is transmitted through contaminated water. Example: Cholera
Prevention of Communicable Diseases
Primordial: Improved sanitation, Housing, Education
Primary: Immunization, Vector control, Safe water
Secondary: Screening, Early treatment, Isolation
Tertiary: Disability limitation, Rehabilitation
Biological Vector
Agent that transmits disease without multiplying, e.g., Housefly → Typhoid
Agent multiplies/develops, e.g., Mosquito → Malaria
Agent that only carries the disease, e.g., Tick → Lyme Disease
Agent that cures diseases, e.g., Antibiotics → Bacterial Infections
Personal Protective Measures
Insecticide-treated nets (LLIN)
Mosquito traps
Air conditioning units
Ultrasonic pest repellents
Vector Control Measures
Source reduction, Larvivorous fish (Gambusia, Guppy), Chemical larvicides
Indoor residual spray, Fogging, Space spray
Use of insect repellent on skin
Planting mosquito-repelling plants in gardens
Vector
A type of computer program that processes data.
An arthropod or any living carrier that transmits an infectious agent from an infected individual to a susceptible host.
A mathematical quantity with both magnitude and direction.
A method of data storage in computing.
Important National Programmes
NTEP – Tuberculosis
NACP – Diabetes
NVBDCP – Heart diseases
UIP – Cancer prevention
National Vector Borne Disease Control Programme (NVBDCP)
Prevention & control of 4 diseases: Malaria, Dengue, Chikungunya, JE
Prevention & control of 5 diseases: Malaria, Dengue, Chikungunya, Kala-azar, Filariasis
Prevention & control of 6 diseases: Malaria, Dengue, Chikungunya, JE, Kala-azar, Filariasis
Prevention & control of 7 diseases: Malaria, Dengue, Chikungunya, JE, Kala-azar, Filariasis, Zika
Common Vectors & Diseases
Mosquito – Malaria, Dengue, Chikungunya, JE, Filariasis
Housefly – Typhoid, Diarrhea
Flea – Plague
Tick – Kyasanur Forest Disease
Mechanical Vector
No multiplication of agent. Example: Housefly → Diarrheal diseases
Multiplication of agent occurs. Example: Mosquito → Malaria
Transmits diseases through direct contact. Example: Human → Flu
Involves biological processes. Example: Tick → Lyme disease
Mosquito Species & Breeding Places
Anopheles – Artificial collections (tyres, coolers)
Culex – Clean water
Aedes – Dirty water
Aedes – Artificial collections (tyres, coolers)
