inflammation

TWiV 561: Hot or not

The Autonomous CollecTWiVe reveal two effective treatments for Ebolavirus infection, how a virus in a fungus confers heat tolerance to a plant, and dampened inflammation as a mechanism for bat tolerance to viral infection. Click arrow to play Download TWiV 561 (57 MB .mp3, 93 min) Subscribe (free): iTunes, Google Podcasts, RSS, email Become a patron of TWiV! Show notes at microbe.tv/twiv

TWiV 428: Lyse globally, protect locally

The TWiVsters explain how superspreader bacteriophages release intact DNA from infected cells, and the role of astrocytes in protecting the cerebellum from virus infection. You can find TWiV #428 at microbe.tv/twiv, or listen below. [powerpress url=”http://traffic.libsyn.com/twiv/TWiV428.mp3″] Click arrow to play Download TWiV 428 (65 MB .mp3, 108 min) Subscribe (free): iTunes, RSS, email Become a patron of TWiV!

Mosquito saliva enhances virus replication and disease

Mosquito saliva, which is injected into the host as a mosquito probes for a blood vessel, contains a collection of chemicals which include anticoagulants to prevent blood clotting, vasodilators to keep blood vessels wide, and anesthetics to prevent us from sensing the mosquito. Saliva also contains components that enhance viral replication, dissemination, and pathogenesis by …

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Virus-induced fever might change bacteria from commensal to pathogen

Neisseria meningitidis may cause septicemia (bacteria in the blood) and meningitis (infection of the membrane surrounding the brain), but the bacterium colonizes the nasopharynx in 10-20% of the human population without causing disease. Although understanding how the bacterium changes from a commensal to a pathogen has been elusive, an important property is believed to be the ability …

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Viruses of protozoan parasites may exacerbate human disease

Many protozoan parasites (Trichomonas, Leishmania, Giardia, Plasmodium, Entamoeba, Nagleria, Eimeria, Cryptosporidium) are infected with viruses. These viruses do not infect vertebrates, but their double-stranded RNA genomes are sensed by the innate immune system, leading to inflammatory complications of protozoan infections. Trichomonas vaginalis is a protozoan parasite that infects the genitourinary tract of ~250 million individuals …

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