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Results for “Theileriasis”

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At least 55 records · Page 3Linked to original sources
PubMed1977

Cell-mediated immunity in tropical theileriasis (Theileria annulata infection).

Migration of peripheral leucocytes collected from Theileria annulata carrier cattle was inhibited in the presence of piroplasmal antigen. The degree of inhibition was antigen density dependent. The same antigen did not inhibit migration of leucocytes obtained from clean animals, raised under tick-free conditions. The carrier animals exhibited typical skin sensitivity reaction on intradermal inocluation of the piroplasmal antigen. The known negative animals failed to evince a similar reaction.

Animals↗
PubMed1982

Experimental transmission of Cowdria ruminantium by the Gulf coast tick Amblyomma maculatum: danger of introducing heartwater and benign African theileriasis onto the American mainland.

The tick Amblyomma maculatum proved to be an experimental vector of Cowdria ruminantium, the cause of heartwater of ruminants. Transstadial transmission from larva to nymph and from larva through nymph to adult was successful; however, an experiment on transovarial transmission gave negative results. Neither A americanum nor A cajennense transmitted the infection. There is a potential danger of the disease gaining access to the American mainland from the Caribbean where it is known to occur and of maintaining itself in areas where A maculatum occurs. Transstadial transmission experiments, using 3 American Amblyomma spp and an African strain of Theileria mutans, which is thought to occur in the Caribbean, were unsuccessful.

Africa↗