SARS CoV 2 News and Research

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4,000-year-old sheep tooth sheds light on enigmatic Eurasian plague

Around 5,000 years ago, a mysterious form of plague spread throughout Eurasia, only to disappear 2,000 years later.

11 Aug 2025

New biomarker may be the first specific and quantifiable indicator for confirming long COVID

Researchers from the Translational Genomics Research Institute (TGen), part of City of Hope, and the Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center have identified a potential biomarker for long COVID.

11 Aug 2025

Understanding sex-based differences in immune system function

Many diseases affect men and women differently. Asthma tends to strike men earlier in life, yet more women develop asthma as they get older.

7 Aug 2025

New research pipeline fuels the development of universal vaccines

Most vaccines are designed to provide immunity against just one pathogen. Vaccines for chicken pox (caused by varicella-zoster virus) were only developed to fight that one disease, for example.

7 Aug 2025

Immune surveillance in children sheds light on virus rebound after COVID

The first paper from a multi-year clinical research study has been published in The Lancet Infectious Diseases: Dynamics of Endemic Virus Re-emergence in Children in the USA Following the COVID-19 Pandemic (2022-2023): A Longitudinal Immunoepidemiologic Surveillance Study and demonstrates how the approach can improve modeling to better predict future outbreaks.

7 Aug 2025

Sugarcoating hides cellular RNA from the immune system

To our immune system, naked RNA is a sign of a viral or bacterial invasion and must be attacked. But our own cells also have RNA.

6 Aug 2025

Unraveling the mysteries of post-acute infection syndromes

In recent years, doctors and scientists are increasingly studying long-lasting illnesses that begin after someone recovers from an infection.

1 Aug 2025

Experimental drug found to be safe and effective in treating children with MIS-C

In a small trial, Mass General Brigham researchers found a drug designed to treat Celiac disease supported a more rapid return to normal activities for patients following COVID.

30 Jul 2025

Respiratory infections can reactivate dormant breast cancer cells

Researchers at the University of Colorado Anschutz Medical Campus, Montefiore Einstein Comprehensive Cancer Center (MECCC), and Utrecht University have found the first direct evidence that common respiratory infections, including COVID-19 and influenza, can awaken dormant breast cancer cells that have spread to the lungs, setting the stage for new metastatic tumors.

30 Jul 2025

UK self-tests overstate accuracy and pose usability risks

Analysis of UK self-tests reveals critical flaws in accuracy claims, highlighting risks and the need for enhanced regulatory standards for consumer safety.

28 Jul 2025

Global vaccination effort saved 2.5 million lives from SARS-CoV-2

Thanks to vaccinations against SARS-CoV-2 in the period 2020-2024 2.533 million deaths were prevented at global level, one death was avoided for every 5,400 doses of vaccine administered. The 82% of the lives saved by vaccines involved people vaccinated before encountering the virus, 57% during the Omicron period, and 90% involved people aged 60 years and older. In all, vaccines have saved 14.8 million years of life (one year of life saved for 900 doses of vaccine administered).

28 Jul 2025

New study uncovers how prior obesity impacts viral consequences

A study comparing the effects of SARS-CoV-2 infection in lean and obese primates found different long-term consequences of the virus depending on prior obesity and metabolic disease. The results, which also highlighted how widespread long COVID symptoms are in animals, were published July 24th in the open-access journal PLOS Pathogens by Charles Roberts of Oregon Health & Science University, USA, and colleagues.

25 Jul 2025

New study reveals high lifetime exposure to hepatitis B and C in Ukraine

A study just published on Eurosurveillance has found evidence of substantial lifetime exposure to hepatitis B and C viruses in Ukraine in a 2021 nationwide, representative sample of the population, with findings also suggesting significant ongoing circulation of these viruses.

24 Jul 2025

CoVerage outperforms rivals in early detection of COVID mutations

The CoVerage system monitors SARS-CoV-2 evolution, predicting variants and scoring amino acid changes to inform vaccine efficacy and public health strategies.

24 Jul 2025

Infants and preschoolers show unique signs of long COVID

Infants, toddlers and preschoolers exhibit symptoms of long COVID, but the symptoms can be different and more difficult to identify in these children, according to Rutgers Health research.

23 Jul 2025

Study reveals pandemic life made brains age faster, even without catching COVID-19

The COVID-19 pandemic accelerated biological brain aging in older adults by an average of 5.5 months over less than three years, regardless of infection status. Social disruption, age, male sex, and socioeconomic disadvantage heightened vulnerability, while only infected individuals showed measurable declines in executive function.

23 Jul 2025