1Department of Veterinary Parasitology, Madras Veterinary College, Vepery, Chennai-600007, Tamil Nadu, India
2College of Food and Dairy Technology, Koduvalli, TANUVAS, Chennai -600052, Tamil Nadu, India
3Post Graduate Research Institute in Animal Sciences, TANUVAS, Kattupakkam, Kancheepuram-603203, Tamil Nadu, India
4Division of Pathology, ICAR-Indian Veterinary Research Institute (ICAR-IVRI), Izatnagar, Bareilly-243122, Uttar Pradesh, India
*Corresponding author email id: sarathivet@gmail.com
Sheep, called as ‘museum of parasites’, is susceptible to many nematodes. Among the nematodes, Haemonchus contortus is an important voracious blood sucking helminth, which causes alteration in pH of abomasum and blood parameters like PCV. The host produces some immune mechanism against H. contortus to limit the pathogenic effect produced by the parasite. However, the parasite escapes the host immune response in order to survive within the host, which is called ‘evasion’ mechanism.
Haemonchus contortus, Immune response, Antigen, Immunoprophylaxis, Evasion, Sheep, Pathogensis
