Sentences with phrase «of vertebrate host»

The parasite can remain dormant as a cystozoite (a cystic developing stage) in the muscles cells of this vertebrate host until it is ingested by a dog and causes ACH.

Not exact matches

A new analysis of the prehistoric origin of malaria suggests that it evolved in insects at least 100 million years ago, and the first vertebrate hosts of this disease were probably reptiles, which at that time would have included the dinosaurs.

Since the sexual reproduction stage of malaria only occurs in insects, Poinar said in the new study that they must be considered the primary hosts of the disease, not the vertebrate animals that they infect with disease - causing protozoa.

Genome sequencing confirms that myxozoans, a diverse group of microscopic parasites that infect invertebrate and vertebrate hosts, are actually are «highly reduced» cnidarians — the phylum that includes jellyfish, corals and sea anemones.

«In addition, we reconstructed the evolutionary history of host associations of the entire family of viruses, demonstrating for the first time that viruses affecting vertebrates developed from arthropod - specific viruses,» says the researcher from the University of Bonn Hospital.

The team looked at an outer surface protein of B. burgdorferi found in ticks — which can give clues about the vertebrate host — as well as the probabilities that different host species transmit the microbe during a tick bite, the number of larvae feeding on the animals, and population densities.

In Cerro Colorado, located in the Ica Desert of Peru, sedimentary sequences dating back nine million years have been found to host the fossil skeletons of hundreds of marine vertebrates.

In the laboratory, as described by Alan Walker from the University of Edinburgh, they must be fed on live vertebrate hosts.

«We really need to think about the interactions of retroviruses and host immunity as the product of an ancient arms race stretching back to the early origins of vertebrates,» Katzaourakis said.

We sequenced the whole genomes and transcriptomes of Leishmania donovani strains throughout their adaptation to in vivo conditions mimicking natural vertebrate and invertebrate host environments.

In a study out by Shi and colleagues this week, researchers identified 214 new viruses that, as the authors so succinctly state, reveal «diverse virus - host associations across the entire evolutionary history of the vertebrates».

Oligopeptide Permease A5 Modulates Vertebrate Host - Specific Adaptation of Borrelia burgdorferi

Malaria is caused by species of single - celled parasites in the genus Plasmodium, vectored by mosquitoes primarily in the genera Aedes and Anopheles between many vertebrate hosts, including humans.

Biology contravenes taxonomy in the Myxozoa: new discoveries show alternation of invertebrate and vertebrate hosts.