Screening of in vitro antitrematodal activities of compounds and secondary metabolites isolated from selected Pteridophytes.

Four ferns Blechnum orientale Linn. (BO), Dicranopteris linearis (Burm.f ) Underw.

In vitro production of Toxocara canis excretory-secretory (TES) antigen.

Toxocara canis is a widespread gastrointestinal nematode parasite of dogs and cause Toxocara larva migrans, an important zoonotic disease in humans on ingestion of infective eggs. Toxocarosis is one of the few human parasitic diseases whose serodiagnosis uses a standardized antigen, T. canis excretory secretory antigen (TES).

First report of in domestic duck (, Linnaeus, 1978) from Southern India.

Parasitic infection is one of the prime causes for morbidity and mortality of ducks in India. Ducks have the habit of wading through the water resources especially paddy fields and feeding on snail which favours occurrence of various parasites. Among the parasites, lice infestation affects growth and productivity of ducks by way of irritation.

Occurrence of the pentastomid Porocephalus crotali (Humboldt, 1811) in an Indian rat snake (Ptyas mucosus): a case report.

The occurrence of the pentastomid Porocephalus crotali in an Indian rat snake (Ptyas mucosus) at Chennai, India is reported. The worms were found in the lungs and they were identified as females. The worms were cylindrical and annulated with a centrally located mouth surrounded by four hooks.