pathogenesis

Defective genomes modulate respiratory syncytial virus pathogenesis

During viral replication, defective genomes may arise that lack essential sequences. These so-called defective genomes cannot replicate unless they are in the same cell as a helper virus. Defective genomes play a role in modulating pathogenesis of respiratory syncytial virus in humans. Copy-back defective viral genomes (cbDVGs) of RSV arise when the viral RNA polymerase …

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How vaccines work

Vaccines work by educating the host’s immune system to recall the identity of a virus years after the initial encounter, a phenomenon called immune memory. Viral vaccines establish immunity and memory without the pathogenic consequences typical of a natural infection. The success of immunization in stimulating long-lived immune memory is among humanity’s greatest scientific and …

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TWiV 535: Miles to go before I leak

The TWiV team discuss the use of quantum dots to study uncoating of influenza virus in real time, and induction of endothelial dysfunction by flavivirus NS1 proteins in a tissue-specific manner. Click arrow to play Download TWiV 535 (58 MB .mp3, 96 min) Subscribe (free): iTunes, Google Podcasts, RSS, email Become a patron of TWiV! Show notes at microbe.tv/twiv

TWiV 494: Ebola Makona is the opposite of hakuna matata

Vincent, Kathy, and Alan review the ongoing outbreak of Ebola virus in the Democratic Republic of the Congo, and the finding that mutations identified in the 2015 West African epidemic do not alter pathogenesis in animals. <span data-mce-type=”bookmark” style=”display: inline-block; width: 0px; overflow: hidden; line-height: 0;” class=”mce_SELRES_start”></span>&lt;span data-mce-type=”bookmark” style=”display: inline-block; width: 0px; overflow: hidden; line-height: …

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