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WHY DO WE FALL ILL ?:

WHY DO WE FALL ILL ? VECTOR BORNE DISEASES WITH SPECIAL EMPHASIS ON PRIMARY AND SECONDARY HOST MADE BY - RITIK KATOCH AND SAMYAK JAIN ROLL NO. - 929A and 930A respectively.

WHAT ARE VECTOR DISEASES ? HOW ARE THEY SPREAD ?:

WHAT ARE VECTOR DISEASES ? HOW ARE THEY SPREAD ? Vector-borne diseases are illnesses caused by pathogens and parasites in human populations. Every year there are more than 1 billion cases and over 1 million deaths from vector-borne diseases such as malaria, dengue , yellow fever, Japanese encephalitis and onchocerciasis, globally. Vector-borne diseases account for over 17% of all infectious diseases. Vectors are living organisms that can transmit infectious diseases between humans or from animals to humans. Many of these vectors are bloodsucking insects, which ingest disease-producing microorganisms during a blood meal from an infected host and later inject it into a new host during their subsequent blood meal.Mosquitoes are the best known disease vector

Vectors and Vector-borne Diseases:

Vectors and Vector-borne Diseases

IMPACT OF VECTOR BORNE DISEASES:

IMPACT OF VECTOR BORNE DISEASES Farmers diagnosed as sick from malaria for more than two days out of a growing season had 47% lower yields and 53% lower revenues than farmers who missed no more than two days of work. Reduced household income and nutrition. Countries with intense vector diseases had rates of GDP growth that were 1.3% lower than those in comparable countries with less intense malaria. Countries with more than 50% of the population living at risk of infection from malaria parasites had average income levels that were one third of those in countries with less intense rates of disease , even when other confounding factors were removed.

PREVENTION :

PREVENTION Vector control : To reduce contacts between mosquitoes and humans: Destruction of larval breeding sites Insecticide spraying inside houses Integrated Vector Management – (IVM) Designed to achieve the greatest disease control benefit in the most cost-effective manner. Minimizing negative impacts on ecosystems (e.g. depletion of biodiversity) Minimize adverse side-effects on public health from the excessive use of chemicals in vector control

BIBLIOGRAPHY:

BIBLIOGRAPHY WHO official website - http://www.who.int/heli/risks/vectors/vector/en/ National Vector Borne Disease Control Programme Directorate General of Health Services,Ministry of Health & Family Welfare- http://nvbdcp.gov.in/ European Centre for disease prevention - http://ecdc.europa.eu/en/healthtopics/climate_change/health_effects/Pages/vector_borne_diseases.aspx The role of human movement in the transmission of vector-borne pathogens – AC MORRISON- http://journals.plos.org/plosntds/article?id=10.1371/journal.pntd.0000481

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