Clipar Lec Blood and tissue nemated

Most common cause of lymphatic filariasis (>90%)

Wuchereria bancrofti

Aedes, Culex, Anopheles

Wuchereria bancrofti vector

Nocturnal

Wuchereria bancrofti periodicity

Sheathed with no nuclei at tail tip

Wuchereria bancrofti microfilaria

Lymphatic vessels

Wuchereria bancrofti adult habitat

Lymphedema, elephantiasis, hydrocele

Wuchereria bancrofti causes

Malayan filariasis

Brugia malayi disease

Mansonia mosquitoes

Brugia malayi vector

Nocturnal or subperiodic

Brugia malayi periodicity

Sheathed with two terminal nuclei at tail tip

Brugia malayi microfilaria

Lower extremities

Brugia malayi commonly affects

Diethylcarbamazine (DEC)

Drug of choice for lymphatic filariasis

Elephantiasis

Prominent feature of lymphatic filariasis

Lymphangitis, lymphadenitis, eosinophilia

Early signs of lymphatic filariasis

Wuchereria bancrofti and Brugia malayi

Tropical pulmonary eosinophilia is caused by

Rat lungworm

Angiostrongylus cantonensis common name

Eosinophilic meningitis

Angiostrongylus cantonensis disease

Rat

Definitive host of Angiostrongylus cantonensis

L3 larva

Infective stage of Angiostrongylus cantonensis

Snails and slugs (mollusks)

Intermediate host of Angiostrongylus cantonensis

Female Angiostrongylus cantonensis

Barber's pole appearance is seen in

Severe headache with eosinophilia

Classic symptom of Angiostrongylus cantonensis infection

Trichinellosis

Trichinella spiralis disease

Undercooked pork or wild game meat

Source of Trichinella spiralis infection

Encysted larva

Infective stage of Trichinella spiralis

Human is both definitive and intermediate host

Unique feature of Trichinella spiralis infection

Striated skeletal muscle

Site of encystment of Trichinella spiralis larvae

Enteric phase

Stage 1 of trichinellosis

Larval migration and muscle invasion

Stage 2 of trichinellosis

Encystment and encapsulation

Stage 3 of trichinellosis

Muscle biopsy

Gold standard diagnosis of trichinellosis

Usually asymptomatic

Less than 10 Trichinella larvae ingested

Moderate infection

50-500 Trichinella larvae ingested

Severe or potentially fatal infection

More than 1000 Trichinella larvae ingested

Wuchereria bancrofti

Clean tail tip microfilaria

Brugia malayi

Two terminal nuclei at tail tip

Wuchereria bancrofti

Most common filarial worm worldwide

Mansonia

Most important vector of Brugia malayi

Lymphatic filariasis

Cause of elephantiasis

Angiostrongylus cantonensis

Cause of eosinophilic meningitis

Trichinella spiralis

Cause of trichinellosis

Microfilariae

Most important diagnostic stage of filarial infections

L3 larva

Infective stage transmitted by mosquito in filariasis

Night

Best time to collect blood for Wuchereria bancrofti

Night (can also be collected during the day in subperiodic strains)

Best time to collect blood for Brugia malayi