Ultra-Low-Dose CT Scans May Help Early Detection Of Pneumonia

Updated Mar 19, 2025 | 09:20 AM IST

SummaryCT scans are the gold standard for detecting pneumonia but there are concerns regarding the risk posed by repeated exposure to radiation.
Ultra-Low-Dose CT Scans May Detect Pneumonia in At-Risk Patients

Credit: Canva

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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Ebola Survivors May Face COVID-Like Memory Loss and Brain Issues For Over 7 Years: NIH Study

Updated Jun 11, 2026 | 11:00 PM IST

SummaryThe study found that many survivors experienced symptoms of depression, including suicidal thoughts. Because symptoms such as headaches, memory problems, concentration difficulties, and sleep disturbances can overlap with psychiatric disorders, the researchers stressed the importance of continued mental health evaluation and care.
Ebola Survivors May Face COVID-Like Memory Loss and Brain Issues for Over 7 Years: NIH Study

Credit: AI generated image

People who survive Ebola virus disease (EVD) may continue to experience memory loss, irritability, and difficulty concentrating for more than seven years after recovering from the infection, according to a new study led by researchers at the National Institute of Neurological Disorders and Stroke, part of the National Institutes of Health (NIH).

The findings come as Ebola outbreaks continue in the Democratic Republic of Congo and Uganda, where confirmed cases have surpassed 650 and more than 130 deaths have been reported.

Long-Term Neurological Problems

The NIH partnered with Liberia's Ministry of Health to study the long-term effects of the disease during the 2014–2016 Ebola epidemic in West Africa, which caused more than 28,000 infections and over 11,000 deaths across Liberia, Guinea, and Sierra Leone.

Researchers evaluated 148 adult Ebola survivors and 81 uninfected close contacts who served as a comparison group. The results revealed that many people experienced significant neurological symptoms during the acute phase of the illness, some of which continued for seven long years.

During infection, survivors commonly reported headaches, altered mental status, and stroke-like symptoms. Long-term complications affected the brain and nervous system and included cognitive dysfunction, persistent headaches, sleep disturbances, depression, sexual dysfunction, tremors, fatigue, cranial nerve abnormalities, and abnormal sensations.

The researchers also found that headaches and neurological abnormalities remained more common among Ebola survivors than in people who had not been infected.

"Over time, survivors' symptoms and neurological examinations improved; however, more than 7 years later, a significant proportion continue to endorse memory loss," the researchers wrote in the study, published in JAMA Neurology.

Similarities to Long COVID

Also read: WHO Says Ebola Fight Is Catching Up; Expert Explains Science Behind Patient Recoveries

The study noted that many participants experienced symptoms similar to those seen in other post-infection conditions, including Long COVID and myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). These symptoms included headaches, memory loss, fatigue, and difficulty concentrating.

"This suggests possible shared pathophysiology, including persistent viral antigen or immune dysregulation," the researchers said.

However, the authors pointed out some important differences. While Long COVID and ME/CFS are often associated with autonomic nervous system dysfunction, such problems were not clearly identified among Ebola survivors, although dizziness and light-headedness were common.

How Does Ebola Affect the Brain?

The exact cause of long-term neurological problems after Ebola infection remains unclear. The researchers explained that during the acute illness, brain-related symptoms may be due to widespread inflammation, electrolyte imbalances, low blood pressure, blood-clotting abnormalities, or direct infection of the brain and nervous system by the virus.

On the other hand, long-term neurological issues may stem from persistent immune system changes, prolonged recovery from severe illness, or lingering viral material in the body.

Need For Continued Mental Health Care

Read More: Ebola Bundibugyo Outbreak: UK Scientists Identify 23 Unique Mutations

The researchers emphasized that neurological care should be a priority for clinicians treating Ebola survivors.

"Survivors experienced headaches, memory loss, and fatigue that may significantly impact quality of life," the authors wrote.

They noted that headaches often respond to standard preventive treatments, but survivors should continue to be monitored because of the rare risk of Ebola-related relapse in the central nervous system.

The study also found that many survivors experienced symptoms of depression, including suicidal thoughts. Because symptoms such as headaches, memory problems, concentration difficulties, and sleep disturbances can overlap with psychiatric disorders, the researchers stressed the importance of mental health evaluation and care.

Fortunately, many of these symptoms appear to improve or resolve over time with appropriate treatment and support.

Will Bundibugyo Survivors Face Lasting Brain Issues?

The current Ebola outbreak is caused by the Bundibugyo strain, which differs from the strain responsible for the 2014–2016 West African epidemic. Unlike the Zaire strain, there are currently no approved vaccines or antiviral treatments specifically for Bundibugyo Ebola, although some patients have recovered.

Researchers believe many of the long-term neurological effects observed in survivors of the West African outbreak could also occur in Bundibugyo survivors.

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Ronaldo, Messi & Mbappé’s Health Guardian: The Doctor Protecting World Cup 2026 Stars

Updated Jun 11, 2026 | 08:00 PM IST

SummaryAs the FIFA World Cup 2026 approaches, medical teams prepare to protect global football stars. Pro Sports Doc Riley J. Williams III and FIFA protocols ensure player health, safety, and peak performance.
Ronaldo, Messi & Mbappé’s Health Guardian: The Doctor Protecting World Cup 2026 Stars

Credit: Canva

The World Cup is at the doorstep, and fans are excited to witness their favorite stars once again in their clash to get the golden trophy. It has been over 20 years since the World Cup returned to the US, though Canada and Mexico are also among the hosts. The fans are reaching America from all over the world. The players are also ready to make their mark on the largest scale of the sport.

Thus, it becomes crucial to keep the athletes fit and healthy. There is a huge team behind the scenes to treat and take care of your favorite stars, which requires strategy, planning, and most of all, accurate execution. On this backdrop comes a name that makes the difference known as the Pro Sports Doc, Riley J. Williams III, who is known to be an expert, and he will coordinate medical care during this demanding tournament.

The Pro Sports Doc, with his 20 years of experience, will be working and coordinating medical care in the New York / New Jersey area. In an interview with Muscle and Fitness, Riley J. Williams III put emphasis on players getting acclimatized and synchronizing their sleeping patterns with North America. He also mentioned creatine as a great health supplement. He also reveals that his team has readied the entire spectrum of possible medical issues that might occur while teams are in the market.

FIFA has also issued standard procedures to keep the players safe. Each Participating Member Association shall include at least one team medical doctor in its delegation, to be present in the technical area during all matches. It is a mandatory requirement that the team medical doctor of each Participating Member Association complete and successfully pass the “Concussion” and “Sudden Cardiac Arrest” modules of the FIFA Diploma in Football Medicine before the FIFA World Cup 26.

The team's medical doctor is responsible for the overall health of their team delegation and any clinical decision‑making in this regard, both on and off the field of play. Although the team doctors’ primary responsibility is to the players, their medical responsibility extends to all other members of the delegation. As such, all team doctors shall ensure that they have the appropriate registration and licence in their home country.

Each Participating Member Association shall ensure and confirm to FIFA that its players have undergone a cardiac screening, including personal and family history, clinical examination, and resting 12‑lead ECG, within the last 12 months and an echocardiography within the last 24 months before the start of the final competition of the FIFA World Cup 26. If specifically performed for the tournament, FIFA recommends that participating teams use the screening form developed by FIFA cardiology consultants.

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Vitamin A Poisonings Rose In US After RFK Jr. Promoted It As A Measles Treatment, Study Finds

Updated Jun 11, 2026 | 10:00 PM IST

SummaryA June 2026 study published in the JAMA Network claimed that internet searches combining "vitamin A" and "measles" increased by 44 per cent on February 26, 2025, and reached peak popularity on March 22, 2025.
Vitamin A Poisonings Rose In US After RFK Jr. Promoted It As A Measles Treatment, Study Finds

Credit: AI generated image

More than 2,000 confirmed measles cases have been recorded in the United States so far this year, putting the country on track for its worst measles outbreak in decades.

The virus continues to spread in unvaccinated and under-vaccinated communities, including among infants who are too young to receive the vaccine, highlighting the growing impact of misinformation and declining vaccination rates.

Although measles was declared eliminated in the US in 2000 and past outbreaks were rapidly contained, vaccination coverage has fallen in recent years, particularly following the COVID-19 pandemic, increasing the risk of larger and more difficult-to-control outbreaks.

Health Experts have argued that the situation has been worsened by vaccine skepticism promoted by President Donald Trump and Health Secretary Robert F. Kennedy Jr.

Kennedy has repeatedly framed measles vaccination as a personal choice and has also promoted vitamin A as a treatment option during the outbreak, prompting a surge in public interest.

RFK Jr.'s Statements Surged Vitamin A For Measles

Also read: Heading to FIFA World Cup 2026? Here's How to Stay Safe From Measles, Heatstroke

A June 2026 study published in the JAMA Network claimed that internet searches combining "vitamin A" and "measles" increased by 44 per cent on February 26, 2025, and reached peak popularity on March 22, 2025.

The study, led by Boston Children’s Hospital and University of California, also found that searches for "cod liver oil" and measles peaked at 52.6 per cent on March 5, 2025, following government statements in February advocating vitamin A as a treatment.

Earlier in 2025, Kennedy also falsely claimed that the MMR vaccine—which protects against measles, mumps, and rubella—causes encephalitis, or brain swelling, while also saying it "does stop the spread of the disease."

Excessive Vitamin A Use Led To Poisonings

In April 2025, America's Poison Centers (APC) reported a rise in the use of alternative measles prevention methods and warned about the risks associated with excessive consumption of vitamin A and cod liver oil, People.com reported.

"For patients with measles, particularly hospitalized children, vitamin A supplementation is recommended to help reduce the risk of severe complications," APC said in a statement.

According to APC, symptoms of vitamin A toxicity can include nausea, vomiting, stomach pain, headaches caused by increased intracranial pressure, bone pain, vision changes, and liver damage.

The organization reported 86 pediatric vitamin A exposure cases between January 1 and March 31, 2025—a 38.7 per cent increase compared with the same period in 2024. However, APC noted that there had been no increase in the severity of poisonings, with no major adverse effects reported in 2025.

Is Vitamin A Recommended for Measles?

Read More: Confused By Your Cholesterol Report? Here's What LDL And ApoB Really Mean

According to the Mayo Clinic, vitamin A supplementation is recommended for children with measles who are at increased risk of vitamin A deficiency. Research suggests that supplementation may help reduce the risk of death and severe complications from the disease.

However, health experts continue to stress that the MMR vaccine remains the most effective method of preventing measles.

"If someone is infected with measles, then vitamin A can help mitigate some of the longer-term sequelae, but it does not prevent measles in an unvaccinated person," infectious disease epidemiologist Catherine Troisi told Houston Public Media.

"Moderate doses of vitamin A can be useful in treatment, but the better choice is to prevent measles from happening in the first place through vaccination."

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