This is a preview. Log in through your library . Abstract Fish respond to parasite infections (and infestations) by the production of antigen specific IgM-like antibodies as well as by the elaboration ...

The dynamic interrelationships within marine ecosystems are increasingly being understood through the study of protozoan communities, which serve as vital components in the aquatic food web. These ...

Mice chronically infected with the intracellular protozoa Besnoitia jellisoni or Toxoplasma gondii, when challenged with a lethal dose of Crypto-coccus neoformans, showed decreased mortality or ...

DURING recent years, there has been increasing amount of evidence regarding the importance of protozoa in the aerobic purification of sewage 1–4 and, more recently, some quantitative observations on ...