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Researchers identify immune markers linked to cognitive decline after viral infections

What impact does a viral infection have on our memory, attention, and concentration? The COVID-19 pandemic has reignited interest in this question, which has now been extended to other infections such as HIV, herpes, and hepatitis.

5 Mar 2026

Long COVID taste loss tied to reduced expression of key taste genes

The study identifies molecular changes in taste receptor cells as a potential cause of persistent taste dysfunction in long COVID-19, impacting quality of life.

5 Mar 2026

Nearly 70 weeks after infection, long COVID patients show no detectable inflammation in blood tests

A controlled Norwegian case-control study examined circulating biomarkers of inflammation and neuronal injury in people with long COVID about 69 weeks after infection. The researchers found no significant differences in systemic inflammatory or neuroinjury markers compared with recovered controls after statistical correction.

4 Mar 2026

Study uncovers a biological cause for persistent taste loss after COVID-19

Some individuals have experienced a loss of taste long after a COVID-19 infection has subsided. Researchers from the Swedish University of Agricultural Sciences, Uppsala University and the University of Colorado have now shown that this may be due to a disruption in taste cells that would otherwise give rise to experiences of sweet, bitter or umami.

4 Mar 2026

Research suggests new therapeutic targets for broad-spectrum antiviral drugs

Coronaviruses not only use the machinery of the human cells they infect: they modify it to achieve optimal conditions to produce viral proteins and thus spread more quickly. This is the main conclusion of a study by Pompeu Fabra University published in Nature Communications.

3 Mar 2026

High-dose curcumin fails to produce lasting gut-microbiome changes in IBD patients

In an open-label study of 29 men, including patients with ulcerative colitis and Crohn’s disease in remission, 6 g per day of curcumin for eight weeks led to modest, transient shifts in gut microbiota composition without sustained restructuring. Despite achieving high fecal concentrations and minimal systemic bioavailability, curcumin did not produce durable microbiome changes, and disease activity scores remained stable.

2 Mar 2026

COVID-19 ARDS survivors face lasting disability and high late mortality, researchers report

In this single-center ambispective cohort of 283 Polish patients with COVID-19–related ARDS requiring invasive mechanical ventilation, cumulative mortality reached 44.5% at four years after ICU admission. Among survivors, substantial proportions reported persistent functional limitations, insomnia, fatigue, and reduced quality-adjusted life years.

2 Mar 2026

How zinc deficiency could worsen heart inflammation and what that means for patients

This review examines how zinc regulates inflammatory and redox signaling pathways involved in myocarditis and pericarditis, highlighting mechanisms such as NF-κB inhibition and the redox zinc switch. The authors conclude that maintaining optimal zinc status may support cardiovascular resilience, while emphasizing that clinical translation requires further targeted trials.

1 Mar 2026

RSV and COVID-19 trigger different immune responses in infants

Young infants hospitalized with respiratory syncytial virus (RSV) often become much sicker compared to those infected with SARS-CoV-2, the virus that causes COVID-19.

25 Feb 2026

Prior COVID infection increases kidney disease risk

Approximately one in seven adults in the United States has kidney disease, where the organs responsible for filtering waste and excess water from the blood are damaged, according to the Centers for Disease Control and Prevention.

25 Feb 2026

COVID-19 initially reduced asthma attacks but widened socioeconomic disparities, study finds

A large retrospective study of more than 162,000 asthma patients in the Bronx found that asthma exacerbations dropped sharply after the onset of COVID-19 before rebounding in children but remaining lower in adults. Socioeconomic disparities widened during the pandemic, particularly among Medicaid recipients, certain income groups, and patients with documented unmet social needs, while racial and ethnic gaps persisted without significantly expanding.

25 Feb 2026

Lingering brain inflammation found after mild COVID infection

Even a mild case of COVID-19 or the flu can impact the body long after the fever and cough fade, according to new Tulane University research that may help explain why some people struggle to feel fully recovered weeks or months later.

25 Feb 2026

Study identifies antiviral protein IFN-γ as a potential biomarker for Long COVID fatigue

SARS-CoV-2 triggers the production of the antiviral protein IFN-γ, which is associated with fatigue, muscle ache and depression.

23 Feb 2026

COVID vaccination during pregnancy linked to lower preeclampsia risk

A new multinational study from the INTERCOVID Consortium, including Ann & Robert H. Lurie Children's Hospital of Chicago, has found that COVID-19 vaccination during pregnancy, particularly when combined with a booster dose, significantly reduces the risk of preeclampsia, a serious and potentially life-threatening pregnancy complication.

18 Feb 2026

Nasal COVID vaccine boost increases IgA responses linked to variant neutralisation

Intranasal boosting after prior intramuscular COVID vaccination induced strong mucosal IgA responses in a small human cohort. These antibodies showed markedly enhanced neutralising activity against Omicron variants and evidence of immune memory reprogramming toward mucosal protection.

15 Feb 2026

Immunocompromised individuals require multiple Covid booster doses

Vaccinations alone may not be enough to protect people with compromised immune systems from infection, even if the vaccine has generated the production of antibodies, new research from the University of Cambridge has shown.

13 Feb 2026

COVID vaccination during pregnancy not associated with neurodevelopmental problems in children

The mRNA COVID-19 vaccine is not associated with autism or other neurodevelopmental problems in children whose mothers received the vaccine immediately before or during pregnancy, according to new research presented today at the Society for Maternal-Fetal Medicine (SMFM) 2026 Pregnancy Meeting.

11 Feb 2026

SARS News and Research

Researchers identify immune markers linked to cognitive decline after viral infections

Long COVID taste loss tied to reduced expression of key taste genes

Nearly 70 weeks after infection, long COVID patients show no detectable inflammation in blood tests

Study uncovers a biological cause for persistent taste loss after COVID-19

Research suggests new therapeutic targets for broad-spectrum antiviral drugs

High-dose curcumin fails to produce lasting gut-microbiome changes in IBD patients

COVID-19 ARDS survivors face lasting disability and high late mortality, researchers report

How zinc deficiency could worsen heart inflammation and what that means for patients

RSV and COVID-19 trigger different immune responses in infants

Prior COVID infection increases kidney disease risk

COVID-19 initially reduced asthma attacks but widened socioeconomic disparities, study finds

Lingering brain inflammation found after mild COVID infection

Study identifies antiviral protein IFN-γ as a potential biomarker for Long COVID fatigue

COVID vaccination during pregnancy linked to lower preeclampsia risk

Nasal COVID vaccine boost increases IgA responses linked to variant neutralisation

Immunocompromised individuals require multiple Covid booster doses

COVID vaccination during pregnancy not associated with neurodevelopmental problems in children

Choroid plexus enlargement in Long COVID signals cognitive risk

New DNA-based vaccine scaffolds boost targeted immune responses to HIV

Study reveals evidence of silent mpox exposure in healthy Nigerians

Designing fluidic architecture for scalable diagnostic platforms

Evaluating new approaches for rare disease genomics

Expanding access to NMR with the Fourier 80 Duo

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