6th lecture public health

Vector

Living organism that transfers an infective agent from one host to another.

mechanically

The causative orhanism is carried in or on the body of the vector

Biological

The body of the vector furnished an essential link in the series of biological cjanges which occurs in the development of the organisms

Physcal and mechanical

Use mechanical device or physical forces

Chemical

Rapid and effective means to reduce vector population density, constraints:

-behavioral resistance of insecticides

-insecticide persistence

Biological

Considering of limiting factors that effect their growth and reproduction

environmental

Removal of breeding places and attractantsv

Health education campaign

Understanding and appreciating the importance of control measures and therefore motivate them to change theri habits, practices and attitudes which promotes the survival and multiplication of pests

Musca domestica

Housefly

Feeler

Flies antennae is called

Thorax

Where the wings of the flies is located

Gray

Color of flies

male

Flies where in eyes are closer to each other

female

Bigger size flies

6 days

The life cycle of flies takes ____ or more

60 days

Max life span of flies is

6-8 hrs

Musca domestica white egg hatches as early as _______

1. 2mm

Musca domestica white egg lenght

500

Female fly can lay up to _______ eggs

3-4 days

A female flies lay up egg over ______ period

3,3

Musca domestica molts _____ times in ______ or more

3-9mm

Musca domestica early larvae are ______ long

7-12mm

Musca domestica full grown maggot up to _______ long

2-6 days

Musca domestica pupa stage complete in

8mm

Musca domestica pupa is about _____ long

10 days

Musca domestica emerges from the pupa in about ________ after the eggs are laid

15 hrs

Musca domestica hatches and can mate after

500-3000

Musca domestica femald can lay ________eggs in her life

Housefly

Most numerous of the domestic flies, breeds in any moist, warmn organic material that will furnish nutrient to the larvae

Lesser housefly

Smaller in size, breed in excrement of humans and aniimals ans also decaying vegetable matters

Biting Stable Fly

Breeds in decomposing vegetables matter only, transmiting disease to animals

Bottle flies or blow flies

-Deposit eggs on meat

-breed preferably in decomposing animal matter but will lay eggs on any fresh or decomposing plant refuse

fresh flies

Large and the absoment had red tip

Myiasis

Flesh flies cause human

Fannia species

Lesser housefly

Stomoxys calcitrans

Biting stable fly

Phormia sp.

Black blowfly

Phaenicia sp.

Green and bronze bott

Cynomyopsis sp. and calliphora

Blue bottle flies

Blattella germanica

Cockroach

2 weeks

Cockcroach can live ______ without water

3 weeks

Cockcroach can live _______ without food

30-40

Female Cockcroach lays about ________ eggs in an egg case

1-2 days

Cockcroach carries the egg case under her body within ____

5-7

Nymph grows and shed skin ______times

30-60 days

Nymph shed skin in _______

7-10 days

Cockcroach adult mate ______ after they are fully grown

2-3 months

The life cycle of Cockcroach takes

100-300

Culex pipiens quinquefasciatus lay eggs in cluster of _________ eggs

1-2 days

Culex pipiens quinquefasciatus eggs hatch in ______

8-10 days

Culex pipiens quinquefasciatus larva and pupa stages takes

9-13

Culex pipiens quinquefasciatus takes _______ to change from egg to adult

10-12 days

Culex pipiens quinquefasciatus adult lives for _______

Blood

Females mosquitoes need _____ to lay eggs

10-20 mins

Aedes aegypti egg hatches in

Wringgler

Aedes aegypti larva called

7-9 days

Aedes aegypti larva lives in water

Tumbler

Aedes aegypti pupa called

1-2 days

Aedes aegypti pupa for ____

11

Aedes aegypti becaomes an adult on day

Culex quinquefasciatus

-Adult mosquitoes are active at night

-they rest during the dau in and around the house

-they bite anywhere on people and animals

-they kay eggs in water

Aedes aegypti

-bites only in daytime or artificial light their fave point of attck is the ankles

-they hide in holes in trees and in drainagr pipes

90m

Adult Aedes aegypti less than ______ from where it was born

Gambusia affinis

Larvivorous fish eat mosquitos larvae

Anopheles mosquito

Malaria vector

A quadrimaculatus

P. Vivax vector

A quadrimaculatus

P. Falciparum

A. Freeborni

P. Malariae

A. freeborni

P. Ovale

Aedes aegypti

Yellow fever vector

Aedes aegypti and albopictus

Dengue vector

Culiseta melanura

Eastern encephalitis vector

Culex tarsalis

Western encephalitis vector

Culex pipiens

St. Louis encephalitis vector

C. Quinquefasciatus

Bancroftian filariasis vector

Mansoni sp.

Malayan filariasis vector

Rattus norvegicus

Norway rat

Norway Rat

-Mostcommon and largest of the domestic rat

-brown rat or sewer rat

Roof rat

Black rat, climbing rat, ship rat, house rat, alexandrine rat old english rat

Rattus rattus

roof rat

Mus musculus

house mouse

House Mouse

-Smallest of the domestic rodents

-small and slender and is covered with dusky gray

3-5 months

Rat sexual maturity

22 days

Rat average gestation

100-150 ft

Rat range of travel

1 year

Rat life

45 days

Mouse sexual maturity

19 days

Mouseaverage gestion

100-150 ft

Range of travel of Mouse

1 year

Mouse life

Murine typhus fever

Same as plague

Plague

Cause by infected rat fleas

Ray bite fever

Infected rat

Weils disease or leptorpirosis

Infected urine and feces of infected rat

Salmonellosis

Same as weils

Ricketsialpox

Bite of house mouse

45 ft

Hous emice can identify object at least _________away

2-3

Rats and mice sometimes can fall _____ stories w/o being injured