Medical Entomology Flashcards
Mosquitoes are vectors of
- Malaria-causing protozoa
- Filariasis-causing nematodes
- Arboviruses
Estimated number of mosquito species in the world
3200
What mosquitoes transmit West Nile virus?
Culex mosquitoes
Other nuisance species of mosquitoes
Aedes, Ochlerotatus, Psorophora
Mosquito control
- Source reduction
- Adulticiding
Larviciding involves applying pesticides containing what substances to water?
- Methoprene
- Bacillus thuringiensis israelensis BTI
- B. sphaericus bacteria
Others
1. Goldfish (Carassius)
2. Mosquito fish (Gambusia)
Mosquito repellent products contain
- DEET
- picaridin
- oil of lemon eucalyptus
- Permethrin (to treat clothing)
Others
1. Citronella
2. garlic
3. Vitamin B
Mosquito species
- Anopheles gambiae
- Aedes aegypti
- Aedes Albopictus
- Culex mosquito
Mosquito borne diseases
- Protozoa - Malaria parasite by anopheles spp.
- Myiasis - Botflies use mosquitoes as intermediate vectors
- Helminthiasis - Filarial worms by culex, anopheles, aedes, mansonia
- Virus - Arboviruses by Aedes aegypti, EEE and WEE by culex and Aedes
What arboviruses are transmitted mostly by Aedes aegypti mosquitoes?
Yellow fever
Dengue fever
Zika fever
Chikungunya
Taxonomy of lice
Phylum Arthropoda
Class Insecta
Order Phthiraptera(sucking lice)
Order Mallophaga(chewing lice)
Mode of transmission of sucking lice
Person to person
Fomites
(they are found on humans)
Three types of lice that live on humans
Head lice - Pediculus humanus capitis
Body lice - Pediculus humanus corporis
Pubic lice - Phthrus pubis
Stages of live life cycle
- Nit
- Nymph
- Adult
The duration from the egg to egg stage of a lice is
1 month
