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Low-dose CT chest scans could help detect pneumonia in at-risk patients while exposing them to only small amounts of radiation, a new study has found. The research, published in Radiology: Cardiothoracic Imaging, shows that ultra-low-dose scans can effectively detect pneumonia in patients with compromised immune systems, enabling doctors to treat the infection before it becomes life-threatening. According to the researchers, these scans expose patients to just 2% of the radiation dose used in a standard CT scan.
"This study paves the way for safer, AI-driven imaging that reduces radiation exposure while preserving diagnostic accuracy,” lead researcher Dr Maximiliano Klug, a radiologist with the Sheba Medical Center in Ramat Gan, Israel, said in a news release. He added that CT scans are the gold standard for detecting pneumonia but there are concerns regarding the risk posed by repeated exposure to radiation. There is a solution- ultra-low-dose CT scan. However, the problem is that these scans can be grainy and hard to read, researchers said.
Study Gives Solution To This
To overcome that, Klug's team developed an AI program that could help "de-noise" low-dose scans, making them sharper and easier to read. Between September 2020 and December 2022, 54 patients with compromised immune systems who had fevers underwent a pair of chest CT scans -- a normal dose scan and an ultra-low-dose scan. The AI program cleaned up the low-dose scan, and then both sets of images were given to a pair of radiologists for assessment. Radiologists had 100% accuracy in detecting pneumonia and other lung problems with the AI-cleaned low-dose scans, but 91% to 98% accuracy in examining the scans that hadn’t been improved through AI, results show.
"This pilot study identified infection with a fraction of the radiation dose," Klug said. "This approach could drive larger studies and ultimately reshape clinical guidelines, making denoised ultra-low dose CT the new standard for young immunocompromised patients.
How Can You Detect Pneumonia?
Pneumonia is a lung infection that causes the air sacs in the lungs to fill with fluid or pus and can be caused by bacteria, viruses, or fungi. The symptoms can range from milk to severe, which includes:
Coughing with or without cough
Fever
Chills
Trouble breathing
Chest pain, especially when breathing deeply or coughing
Sweating or chills
Rapid heart rate
Loss of appetite
Bluish skin, lips, and nails
Confusion.
How to detect Pneumonia in coughing newborns and toddlers?
Pneumonia can severely affect newborns and young children as their lungs are comparatively more sensitive. As per Dr Goyal, young children can cough for various reasons including seasonal infections and tonsillitis, which is very common in this age group. But if they look visibly irritable and have poor sleep patterns, then parents must reach out to an expert. "I am not saying that parents must visit a hospital but any local paediatrician would be able to detect pneumonia in your kid.
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The US Department of Health and Human Services (HHS) has accused more than 200 hospitals and healthcare providers of using improper insurance billing codes to obtain coverage for gender-related medical treatments provided to minors.
The allegations are part of a new HHS report, Wolves in White Coats: How Doctors and Hospitals Pushed and Profited from the Fraud of “Gender Medicine”, released this month. The report examines insurance coding, financial incentives and the provision of what the agency calls “sex-rejecting procedures” to children.
According to HHS, its review identified nearly $120 million in insurance claims since 2019 involving treatments like puberty blockers and hormone therapy.
The agency alleges that some providers used diagnostic codes unrelated to gender dysphoria, including codes for conditions like early puberty or unspecified hormonal disorders, to secure insurance reimbursement.
At the centre of the report is medical billing, rather than simply whether a particular treatment was provided. HHS alleges that some hospitals coded gender-related treatments under diagnoses that could make the procedures eligible for insurance coverage.
The department argues that this amounted to fraudulent or improper billing because the codes allegedly did not accurately describe why the treatment was being provided.
The report names several major healthcare institutions, including Mount Sinai Hospital and Boston Children's Hospital, according to Reuters.
HHS says the review covered procedures including puberty blockers, cross-sex hormones and surgeries. The report estimates that nearly $120 million in insurance charges were associated with the treatments examined since 2019. HHS argues that financial incentives helped drive the expansion of pediatric gender-related services.
The agency's report also claims that hospitals and physicians could benefit financially from establishing long-term treatment relationships with patients.
However, an allegation in an HHS report is not the same as a finding of fraud by a court or a final determination by an insurer. Individual billing and claims would need to be investigated to establish whether fraud actually occurred.
Also read: What Trump’s Childhood Vaccine Order Means: When Will It Take Effect?
The report is part of the Trump administration's broader effort to restrict gender-related medical interventions for minors.
The administration has already taken steps affecting federal funding. Earlier this month, the Centers for Medicare & Medicaid Services finalized a rule ending federal Medicaid and CHIP funding for certain gender-related procedures for children and young people.
HHS Secretary Robert F. Kennedy Jr.'s department has framed the issue as one involving both patient safety and the use of public and private healthcare funds.
Also read: Kennedy Announces Food Policy Reforms Under Trump’s MAHA Agenda: What Has Been Proposed?
Supporters of gender-affirming care argue that treatments such as puberty blockers and hormones can be medically appropriate for some adolescents with gender dysphoria and that access to such care can be important for mental health and wellbeing.
Reuters reported that supporters of the treatments dispute the HHS's characterization of the care. Boston Children's Hospital said it was reviewing the findings, while the American Hospital Association did not provide a comment to the news agency.
The allegations could lead to further scrutiny of hospitals' billing records and potential investigations into whether insurers or government health programmes were improperly charged.
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The Democratic Republic of Congo's Ebola outbreak has become the deadliest in the country's history, with more than 2,300 deaths and almost 5000 cases reported. Yet the World Health Organization (WHO) says the outbreak can still be brought under control within the next three months if they get the resources they urgently need.
The outbreak, caused by the Bundibugyo species of Ebola virus, was declared in May and has now spread to six provinces. At least 2,325 people have died among nearly 4,945 confirmed cases, according to Reuters.
It has already surpassed the previous record for deaths from Ebola in the DRC and has become the second-deadliest Ebola outbreak ever recorded globally, behind the 2014-2016 West African epidemic.
The situation has turned grim as health teams are struggling to keep pace with transmission. Around 70% to 80% of new cases have no known link to previously identified infections, suggesting that the virus is spreading through chains that surveillance teams have not yet detected.
Despite the alarming numbers, WHO officials say the window for containment has not closed and that it can be controlled within the next few months.
Thierno Balde, WHO's regional emergency director for Africa, said the outbreak could still be brought under control within three months if sufficient resources are made available.
“About the next plan for the three months, yes, if you have the necessary resources, I think it will be possible to do that,” Balde told Reuters.
One of the biggest problems in front of the authorities is that the response is underfunded. Of the estimated $115 million needed for the next phase of the response, only about 60% has been raised.
WHO is therefore pushing for additional international support while attempting to expand surveillance, treatment and community-level response.
Also read: DR Congo Ebola Outbreak Becomes Deadliest In Country's History As Death Toll Hits 2,325
One of the biggest challenges is that health workers are finding many infections outside the existing contact-tracing network.
Normally, once an Ebola case is identified, teams trace people who have been exposed, monitor them and rapidly isolate anyone who develops symptoms. That system becomes much less effective when people with Ebola have no known connection to an existing case.
Conflict and population movement are contributing to the expanding outbreak. WHO has warned that the response is taking place in a remote and densely populated setting.
Health workers are also struggling with limited resources and delayed salaries. Several reports of protests among Ebola response workers over unpaid wages also surfaced recently.
Also read: Ebola Outbreak Is Claiming 1 Life Every 30 Minutes In DR Congo: UN Humanitarian Official
The current epidemic is caused by Bundibugyo virus, rather than the Zaire Ebola virus responsible for some of the largest previous outbreaks.
There is currently no approved vaccine or specific treatment for Bundibugyo Ebola, although candidate vaccines and treatments are being evaluated. WHO has said work is underway to test promising candidates.
WHO's three-month target does not mean the outbreak will automatically end in 90 days. It means health authorities believe rapidly scaling up the response could still interrupt transmission before the epidemic becomes even more difficult to control.
The response is already being expanded, with additional treatment capacity, including around 400 new beds, and more epidemiologists being deployed to affected areas.
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A key chemical used in many gel nail polish products has been banned in England, Wales and Scotland.
The “gel nail ban” applies to one ingredient — Trimethylbenzoyl Diphenylphosphine Oxide, commonly known as TPO. It is used in some gel manicures to help the polish achieve a glossy finish and cure properly.
TPO (Trimethylbenzoyl Diphenylphosphine Oxide) is a photoinitiator commonly used in UV- and LED-cured nail products. It makes the varnish more durable and helps it hold its color for longer.
The European Union banned TPO in cosmetic products from September 1, 2025. In the UK, the ban came into effect on August 15.
The ban means manufacturers can no longer sell new products containing TPO. However, salons can continue to offer gel manicures using existing TPO-containing products until February 14, 2027, or until their stocks run out.
Nail technicians will not be able to purchase new stock containing TPO. TPO-containing products continue to be used in the US, Australia and Asia.
The ban follows several animal studies that linked TPO to long-term fertility damage and reproductive issues.
Caroline Rainsford, Director of Science at The Cosmetic, Toiletry and Perfumery Association (CTPA), said the EU ban was based on the chemical's hazardous properties and how a substance might behave in a “worst-case” situation when the body is exposed to a very large amount.
“This is not how TPO is used in cosmetics. The amount of this ingredient used in nail products is over a thousand times less than the amount which could have any negative effect on fertility, and these products are applied to the nail, so the potential for the ingredient to be absorbed into our bodies is even smaller,” Rainsford was quoted as saying in media reports.
TPO is used only in some gel polishes and is not found in traditional air-dried nail polishes. There are already TPO-free gels on the market, and many salons use these products. While some alternatives may belong to the same chemical family, different compounds have different safety ratings.
TPO-free gel systems now use alternative photoinitiators that meet regulatory standards while still delivering similar results.
TPO-free options are available across:
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