Baloxavir marboxil (baloxavir) is a polymerase acidic protein (PA) endonuclease inhibitor with clinical efficacy in the treatment of uncomplicated influenza, including in outpatients at increased risk for complications. The postexposure prophylactic efficacy of baloxavir in the household setting is unclear.. ..A total of 752 household contacts of 545 index patients were randomly assigned to receive… Continue reading Baloxavir Marboxil for Prophylaxis against Influenza in Household Contacts
Category: Infectivology
Reduction of secondary transmission of SARS-CoV-2 in households by face mask use, disinfection and social distancing: a cohort study in Beijing, China
Transmission of COVID-19 within families and close contacts accounts for the majority of epidemic growth. Community mask wearing, hand washing and social distancing are thought to be effective but there is little evidence to inform or support community members on COVID-19 risk reduction within families.. ..The secondary attack rate in families was 23.0% (77/335). Face… Continue reading Reduction of secondary transmission of SARS-CoV-2 in households by face mask use, disinfection and social distancing: a cohort study in Beijing, China
Effect of #Zinc Supplementation vs Placebo on Mortality Risk and #HIV Disease Progression Among HIV-Positive Adults With Heavy #Alcohol Use
.. A total of 254 participants (184 men [72%]; mean [SD] age, 34 [6] years) were enrolled in the trial; 126 were randomized to receive zinc, and 128 were randomized to receive placebo. Participants had high CD4 cell counts (mean [SD], 521 [292] cells/mm3), and 188 (74%) reported heavy drinking in the past week. In… Continue reading Effect of #Zinc Supplementation vs Placebo on Mortality Risk and #HIV Disease Progression Among HIV-Positive Adults With Heavy #Alcohol Use
Environmental Factors and Host Microbiomes Shape Host–Pathogen Dynamics
In many cases, interactions among host, pathogen, and environment are insufficient to describe disease dynamics in the wild. The host microbiome plays an important role in host immunity, at the interface between the host and the pathogen, and affects disease outcome. The environment, as well as environmental microbiomes, influence the host microbiome, and also influence… Continue reading Environmental Factors and Host Microbiomes Shape Host–Pathogen Dynamics
Skeletal muscle antagonizes antiviral CD8+ T cell exhaustion
CD8+ T cells become functionally impaired or “exhausted” in chronic infections, accompanied by unwanted body weight reduction and muscle mass loss. Whether muscle regulates T cell exhaustion remains incompletely understood. We report that mouse skeletal muscle increased interleukin (IL)–15 production during LCMV clone 13 chronic infection. Muscle-specific ablation of Il15 enhanced the CD8+ T cell… Continue reading Skeletal muscle antagonizes antiviral CD8+ T cell exhaustion
CDC people at risk of devere COVID-19 illness
..CDC has removed the specific age threshold from the older adult classification. CDC now warns that among adults, risk increases steadily as you age, and it’s not just those over the age of 65 who are at increased risk for severe illness.. ..There was consistent evidence (from multiple small studies or a strong association from… Continue reading CDC people at risk of devere COVID-19 illness
Greater T Regulatory Cells in Females Attenuate DOCA-Salt–Induced Increases in Blood Pressure Versus Males
Hypertension is the most common risk factor for cardiovascular disease, causing over 18 million deaths a year. Although the mechanisms controlling blood pressure (BP) in either sex remain largely unknown, T cells play a critical role in the development of hypertension. Further evidence supports a role for the immune system in contributing to sex differences… Continue reading Greater T Regulatory Cells in Females Attenuate DOCA-Salt–Induced Increases in Blood Pressure Versus Males
Detection of Ciprofloxacin resistant beta lactamase producing Neisseria meningitidis
What is already known about this topic? Most Neisseria meningitidis isolates in the United States have been susceptible to antibiotics recommended for treatment and prophylaxis. What is added by this report? During 2019–2020, 11 meningococcal isolates from U.S. patients had isolates containing a blaROB-1 β-lactamase gene associated with penicillin resistance and mutations associated with ciprofloxacin… Continue reading Detection of Ciprofloxacin resistant beta lactamase producing Neisseria meningitidis
Association of Azithromycin Use With Cardiovascular Mortality
Azithromycin is one of the most commonly prescribed antibiotics in the US. It has been associated with an increased risk of cardiovascular death in some observational studies.. ..The study included 7 824 681 antibiotic exposures, including 1 736 976 azithromycin exposures (22.2%) and 6 087 705 amoxicillin exposures (77.8%), among 2 929 008 unique individuals (mean [SD] age, 50.7 [12.3] years; 1 810 127 [61.8%]… Continue reading Association of Azithromycin Use With Cardiovascular Mortality
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