25 Questions
Which superfamily do filarial worms belong to?
Filarioidea
What is the main mode of transmission for filarial worms?
By the bite of blood-sucking insects
Which species of filarial worm causes calabar swellings and allergic reactions in humans?
Loa Loa
What is the characteristic of 'unsheathed' microfilariae?
They do not have egg membranes
Which filarial species is classified under serous cavity filariasis?
Mansonella ozzardi
'Calabar swellings' and allergic reactions are clinical conditions related to which filarial antigen?
Loa Loa antigen
What is the term used to describe the condition of elephantiasis by Clarke in 1709 in Cochin?
Malabar leg
Who first observed microfilaria in hydrocoele fluid of a patient from Havana, Cuba in 1863?
Demarquay
Which physician first reported the presence of microfilariae in chylous urine in 1868?
Wucherer
Who first demonstrated the nocturnal periodicity of microfilariae on peripheral blood?
Manson
Where are the adult worms of Wuchereria bancrofti typically found in the human body?
Lymphatics
Which species is considered the definitive host for the microfilaria of Wuchereria bancrofti?
Humans
What is the size range of a female adult worm of Wuchereria bancrofti?
$70-100$ x $0.225$ mm
Which part of the microfilaria represents the rudimentary excretory system?
Anterior V-spot
'Nocturnal' microfilaremia in peripheral blood of humans with lymphatic filariasis correlates with what habit of the vector?
'Correlates with night biting habit'
'Diurnal subperiodic' microfilaremia in certain areas correlates with which specific factor?
'Daytime biting habit'
What is the life span of microfilaria in the human body if not taken up by a female vector mosquito?
2-3 months
How many microfilariae per drop of blood are necessary for infecting a mosquito?
15
What is one of the typical manifestations caused by adult worms in lymphatic filariasis?
Block lymph nodes and vessels
Which clinical manifestation is a unique feature of elephantiasis in human filariasis?
Skin surface coarse with warty excrescences
What is a characteristic feature of lymphoedema in filariasis?
Hard and nonpitting edema
Which condition is caused by the immune reaction to filarial antigens in occult filariasis?
Arthritis
What count of eosinophils in Tropical Pulmonary Eosinophilia indicates a possible filarial infection?
>3000 cmm
Which laboratory test is used to detect the presence of microfilaria in peripheral blood?
Demonstration of microfilaria in blood smear
Which drug is recommended for the treatment of lymphatic filariasis?
Diethyl carbamazine (DEC)
Test your knowledge on the morphology and life cycle of Lymphatic Filariasis, focusing on details such as microfilaria behavior in the human body, mosquito as an intermediate host, and the process of microfilariae reaching the mosquito's stomach.
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