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Cambridge researchers discover three distinct severe pneumonia biological subtypes

Cambridge researchers have shown that severe pneumonia has three different subtypes, helping explain why some patients in intensive care units (ICUs) recover from their illness faster than others, while for other patients the disease can be life-threatening.

23 Jun 2026

Trial identifies 4 grams a day as the tested safe level for L-tyrosine in healthy men

A randomized, crossover trial in healthy adult men found that 4 weeks of L-tyrosine supplementation at doses up to 4 g/day did not cause clinically meaningful changes in safety markers, diet, blood pressure, or body measures. The highest tested dose, 4 g/day, was identified as the no-observed-adverse-effect level under the study’s four-week conditions, although broader and longer-term studies are still needed.

23 Jun 2026

50-year review shows global Ebola spread remains rare despite outbreak fears

Researchers reviewed Ebola disease cases outside Africa from 1976 to May 2026 and found only 28 confirmed epidemic-linked cases, most involving medical evacuation or occupational exposure. Only four latent travelers were diagnosed after border screening, suggesting that undetected intercontinental spread remains rare when outbreaks are controlled at source.

23 Jun 2026

Andes virus cases on MV Hondius highlight hidden risks of confined travel

A Eurosurveillance report describes a multi-country response to an Andes virus outbreak linked to the Dutch-flagged expedition cruise ship MV Hondius, with 13 cases and three deaths reported as of June 18, 2026. Investigators found evidence consistent with an initial zoonotic infection before embarkation, followed by likely person-to-person transmission among passengers and crew in a confined ship setting.

23 Jun 2026

Scientists trace cardiac aging to a fading regulator in heart muscle cells

Researchers mapped 442,239 single nuclei from nonfailing human hearts to chart how cardiac cells change from fetal development to older adulthood. The study identified PRDM16 as an age-declining cardiomyocyte regulator, with experimental evidence showing that restoring Prdm16 in aged mouse hearts improved systolic function and partly reversed aging-associated transcriptional patterns.

22 Jun 2026

Bogotá’s strictest COVID restrictions delivered the clearest air-quality gains

A natural quasi-experiment in Suba, Bogotá, found that more stringent COVID-19 mobility restrictions were associated with larger reductions in PM₁₀ and PM₂.₅ air pollution. The findings suggest targeted traffic and emissions controls could improve urban air quality, although ozone responses were more complex, and the results may not generalize beyond this high-traffic district.

21 Jun 2026

Scientists find mechanism behind bird flu infections in dairy cattle

When H5N1 bird flu first began infecting U.S. cattle in early 2024, diagnosis was elusive, because in cows, the disease looked completely different.

19 Jun 2026

Breast milk nutrient boosts long-term immune system development

Trans-vaccenic acid (TVA), the most abundant trans fatty acid found in human breast milk, helps boost immune system development and has long-lasting effects on immune system health in mice, according to a new study by researchers from the University of Chicago.

18 Jun 2026

Early life stress leaves unique biological signatures in cells

New research links childhood adversity to mitochondrial bioenergetic changes later in life, underscoring the impact of stress in early life on cellular health.

18 Jun 2026

Blood proteins reveal which aging cells may raise disease risk

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16 Jun 2026

Losing smell and taste may profoundly affect wellbeing

University of East Anglia research reveals that smell loss can affect quality of life as severely as conditions including diabetes, stroke, Parkinson's, and kidney failure.

16 Jun 2026

Maternal RSV vaccine shows 68% protection against infant RSV hospitalization

In a test-negative case-control study of 274 hospitalized infants aged 90 days or younger, maternal RSVpreF vaccination was associated with 67.6% effectiveness against RSV-associated acute respiratory illness hospitalization. Protection was similar against RSV-linked lower respiratory tract disease, with the highest point estimate in the first month of life, although confidence intervals were wide.

16 Jun 2026

Machine learning identifies natural compound to treat lung disease

A new study published in Engineering has combined machine learning (ML) and experimental validation to identify dihydromyricetin (DHM), a natural flavonoid, as a potent inhibitor of the TGF-β/ALK5 signaling cascade with therapeutic potential for idiopathic pulmonary fibrosis (IPF).

16 Jun 2026

Secondhand smoke exposure linked to higher blood cadmium levels

A new study finds that adults who simply breathe in secondhand cigarette smoke have about 1.5 times more of the toxin cadmium in their blood than people in smoke-free environments.

15 Jun 2026

Just ten viral particles can infect cows with bird flu

Just 10 viral particles of the H5N1 bird flu that caused hundreds of influenza outbreaks in U.S. dairy cattle can cause infection in cows, a new study shows.

15 Jun 2026

Tumor microenvironment drives drug resistance in lung cancer subtypes

A study by the University of Barcelona has discovered why the two main types of lung cancer — adenocarcinoma of the lung and squamous cell carcinoma — respond differently to anti-angiogenic therapy, that is, drugs that block the formation of new blood vessels that tumors need in order to grow.

15 Jun 2026

Synthetic cooling agents in e-cigarettes link to abnormal heartbeats

Synthetic cooling ingredients added to e-cigarettes caused abnormal heartbeats (arrhythmias) and increased cardiovascular risk measures in mice and lab-grown human heart cells, according to new independent research published today in Circulation: Arrhythmia and Electrophysiology, a peer-reviewed journal of the American Heart Association.

15 Jun 2026

Australia’s diphtheria outbreak shows why boosters, antibiotics, and better housing all matter

A 131-case diphtheria outbreak in Australia’s Northern Territory showed how toxigenic Corynebacterium diphtheriae can re-emerge even in highly vaccinated populations. Genomic and epidemiological evidence linked most cases to a dominant ST381 strain, with transmission shaped by overcrowding, poor skin health, and persistent health inequities.

15 Jun 2026

Study links migrant status to slower NHS career progression

Ethnic minority healthcare workers who are also born overseas face a double disadvantage due to the combined effects of ethnicity and migrant status, according to new research published in JRSM Open.

12 Jun 2026

No link between cat ownership and asthma flare-ups in children

A study of over 30,000 children reveals no link between cat exposure and asthma outcomes, challenging previous concerns about pet ownership and asthma control.

12 Jun 2026