Transmission

Question 1

Transmission types

Answer 1

Direct
Mechanical
Biological

Question 2

Biological type transmission

Answer 2

Disease agent multiples - or and both -development in arthropod.
Cyclo
Propagative
Cyclo propagative

Question 3

Direct contact transmission example

Answer 3

Man to man direct

Scabies by itch mite

Question 4

Mechanical transmission

Answer 4

Typhoid
Trachoma
By house fly

Question 5

Cyclo development transmission

Answer 5

Disease agent undergoes Cyclinal changes but does not multiply.

Guinea worm embryo in Cyclops.
Filarial parasite in Culex mosquito.

(Cute Film CD)

Question 6

Propagative

Answer 6

Disease agent multiples in the body of vector
No cyclical changes.

Plague in rat flea
Yellow fever virus in aedes mosquito.

P plague
MultiplY yellow fever

Question 7

Cyclo propagative

Answer 7

Disease agent undergoes Cyclical changes and multiples in the body of. arthropod.

Malaria parasite

CPM

Question 8

Transovarial transmission

Vertical transmission

Answer 8

Female vector passes the infection agent through her eggs to the next generation.

Rickettsia Rickettsii in Ticks

Question 9

Transstadial transmission

Answer 9

Agent transmitted from Nymph to adult vector.

Borrrelia Burgdorferi in Ticks.
Nymph to adult
Baccha to Bada