Respiratory

Scientists Discover Biological Explanation Why Upper Respiratory Tract Infections Are More Common In Colder Temperatures

Scientists Discover Biological Explanation Why Upper Respiratory Tract Infections Are More Common In Colder Temperatures

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Researchers from Mass Eye and Ear and Northeastern University have discovered a previously unidentified immune response inside the nose that fights viruses responsible for upper respiratory tract infections. Further testing revealed that this protective response is inhibited at colder temperatures, making infection more likely to occur. New studypublished on December 6 in The Journal of …

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Study: Genome charaterization based on the Spike-614 and NS8-84 loci of SARS-CoV-2 reveals two major onsets of the COVID-19 pandemic. Image Credit: peterschreiber.media/Shutterstock

New study describes two possible major outbreaks of the COVID-19 pandemic

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Chinese scientists have analyzed millions of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) genomes and identified two main genetic drivers of the ongoing coronavirus disease 2019 (COVID-19) pandemic. Study: Genome characterization based on SARS-CoV-2 loci Spike-614 and NS8-84 reveals two major outbreaks of the COVID-19 pandemic. Image Credit: peterschreiber.media/Shutterstock The study is currently available on …

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Prior infection and vaccination protect against severe consequences of SARS-CoV-2 infection Omicron

Prior infection and vaccination protect against severe consequences of SARS-CoV-2 infection Omicron

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A new study published in The Journal of Infectious Diseases reports that prior infections with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and booster vaccination protect against intensive care unit (ICU) admission and mortality following infection with the SARS variant -CoV-2 Omicron. However, the scope of this protection is reduced against the Omicron variant compared …

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Study: Recombination-aware phylogenetic analysis sheds light on the evolutionary origin of SARS-CoV-2. Image Credit: NicoElNino/Shutterstock

Scientists study the evolutionary origin of SARS-CoV-2 using recombination-sensitive phylogenetic analysis

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Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and severe acute respiratory syndrome coronavirus (SARS-CoV) belong to the subgenus Sarbecovirus, which has a genomic length of approximately 30,000 base pairs. These viruses encode four structural proteins, namely spike (S), envelope (E), membrane (M), and nucleocapsid (N). Study: Recombination-aware phylogenetic analysis sheds light on the evolutionary origin …

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Study: Viral genetic determinants of prolonged respiratory syncytial virus infection among infants in a healthy term birth cohort. Image Credit: ART_ur / Shutterstock.com

Researchers identify new RSV variant associated with prolonged infection

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A new The Journal of Infectious Diseases The study examines pathogen or host genetic risk factors for RSV infection and whether certain viral variants are associated with prolonged infection. Study: Viral genetic determinants of prolonged respiratory syncytial virus infection in infants from a healthy term birth cohort. Image Credit: ART_ur / Shutterstock.com Transmission of RSV …

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