How does parasite create disease in man?

How does parasite create disease in man?
Ans:
A) Direct physical or chemical damage:
       1)By causing trauma :A.duodenale.
        2)By causing lytic necrosis:E.histolytic in liver and intestine
         3)By releasing toxins:E.histolytica
B) By causing immunological injuries:
     1.By causing inflammation:Leishmaniasis
       2.By causing allergy:W. bancrofti in filariasis
       3.By creating neoplastic changes:Clonorchis sinensis
•Enumerate the insect borne parasitic diseases.Name parasites which are transmitted by insect vectors.
Ans: Parasites which are transmitted by insect vectors:
Parasite
1) Trypanosoma
Insect vector----Tsetse flies
Diseases----Trypanosomiasis
2) Leishmania
Insect vector----Sandflies
Diseases---Kala-azar
3) Plasmodia
Insect vector--Anopheline mosquitoes
Diseases--Malaria
4)Wuchereria
Insect vector--Culicine  mosquitoes
Diseases---Filariasis

Mention five parasitic Infections with marked eosinophilia







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