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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Why One Of The World's Most Popular Museums Is Part Of A Legionnaires' Disease Investigation In NYC?

Updated Jul 12, 2026 | 09:00 PM IST

SummaryThe ongoing Legionnaires' disease outbreak in Manhattan has infiltrated the iconic Guggenheim Museum. Here's how legionella is thriving in buildings' cooling towers.
Why One Of The World's Most Popular Museums Is Part Of A Legionnaires' Disease Investigation In NYC?

Credit: AI

One of New York City's most iconic cultural landmarks has unexpectedly become part of an ongoing disease investigation.

Amid the current Legionnaires' disease outbreak on Manhattan's Upper East Side, the officials flagged Solomon R. Guggenheim Museum after Legionella bacteria was detected in its rooftop cooling tower.

NYC’s Guggenheim Museum Part Of Legionnaires Investigation

While the discovery has raised concerns, authorities stress that the museum has not been identified as the source of the outbreak.

The investigation began after a cluster of Legionnaires' disease cases were reported in the Upper East Side neighborhoods of Carnegie Hill and Yorkville.

Since then, the New York City Department of Health has expanded testing across the area, identifying 31 buildings with cooling towers that tested positive for Legionella bacteria. The world-famous museum is among those properties.

Despite the positive test, officials emphasize that detecting Legionella in a cooling tower does not mean the building caused the outbreak.

Further laboratory testing is required to determine whether the bacteria found in a particular cooling tower genetically match the strain infecting patients, a process that can take several weeks.

Also read: US Hospital Performs World's First HIV-to-HIV Lung Transplant, Offering Fresh Hope for HIV Patients

Guggenheim Museum Takes Immediate Action

The museum acted quickly after receiving the test results, disinfecting and cleaning its cooling tower in accordance with city regulations.

Health officials said the building does not pose an ongoing risk to visitors, and the museum has remained open to the public.

A Guggenheim spokesperson said, “The city has confirmed that there is no additional action needed at this time, and this poses no risk to anyone inside the building,” adding that the museum conducts monthly cooling tower testing and treatment.

The spokesperson added, “The safety of our staff and the public are the utmost priority, and we are continuing to follow all city guidelines.”

As per NY Post, at least 46 people have been diagnosed with Legionnaires, including 22 who remain hospitalized. New York City Health Commissioner Alister Martin said the bacteria were detected in 31 towers and 19 had already been disinfected.

Martin said, “What we have in front of us is 160 cooling towers across this region that we are looking at, and we are not waiting.”

Why Cooling Towers Are Breeding Grounds For Legionella?

Cooling towers have been recognised as one of the most common sources of large Legionnaires' disease outbreaks as they contain warm water that can allow Legionella bacteria to thrive.

Fans in these systems can release fine mists into the surrounding air, exposing people nearby if the water becomes contaminated. This is why New York City requires routine inspection, testing and disinfection of cooling towers, regulations that were strengthened following previous outbreaks in the Bronx and Harlem.

Also read: At 2026 NATO Summit, Trump's Neck Rash and Bruised Hand Draw Attention; White House Responds

List of Buildings Infected With Legionella Bacteria

Besides Guggenheim Museum, here are the other prominent buildings that are currently compromised due to Legionnaires' Disease:

  • 180 East End Avenue
  • 1750 York Avenue
  • 1660 Second Avenue
  • 1438 Third Avenue
  • 1511 Third Avenue
  • 1551 Third Avenue
  • 1071 Fifth Avenue
  • 1080 Fifth Avenue
  • 1001 Fifth Avenue
  • 240 East 82nd Street
  • 8 East 83rd Street
  • 145 East 84th Street
  • 117 East 85th Street
  • 125 East 87th Street
  • 152 East 87th Street
  • 120 East 87th Street
  • 501 East 87th Street
  • 168 East 88th Street
  • 160 East 88th Street
  • 1875 Second Avenue
  • 1110 Fifth Avenue
  • 153 East 78th Street
  • 135 East 79th Street
  • 300 East 79th Street
  • 238 East 81st Street
  • 160 East 84th Street
  • 114 East 85th Street
  • 401 East 88th Street
  • 333 East 91st Street
  • 354 East 91st Street
  • 312 East 95th Street

About Legionnaires' Disease

Symptoms typically develop two to 14 days after exposure and include fever, cough, muscle aches, chills, shortness of breath and, in severe cases, pneumonia.

Health officials continue to investigate the Upper East Side cluster and are urging anyone who visited the affected area and develops flu-like symptoms or pneumonia to seek medical attention promptly.

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Who Was Martha Lillard? Last U.S. Polio Survivor To Depend On An Iron Lung Who Breathed Her Last At 78

Updated Jul 12, 2026 | 07:00 PM IST

SummaryMartha Lillard, the last polio survivor in the US to rely on an iron lung, recently passed away at the age of 78.
Who Was Martha Lillard? Last U.S. Polio Survivor To Depend On An Iron Lung Who Breathed Her Last At 78

Credit: X

Martha Lillard, the last person in the United States to rely on an iron lung for breathing, passed away, making the end of a chapter in American medical history that goes back to the devastating polio epidemics of the 20th century.

Martha Lillard’s Demise

According to her kin, Martha Lillard, 78, died on June 26, 2026, at her home in Shawnee, Oklahoma.

She had spent close to 73 years living with the effects of paralytic polio, a disease that permanently damaged the muscles needed for breathing, leaving her dependent on an iron lung, a medical device that has now become obsolete.

According to reports, chronic pulmonary failure and post-polio syndrome were listed among the causes of her death. Her family also said she experienced long COVID, which further worsened her lung function, increasing the amount of time she needed to spend inside the iron lung.

Also read: Donald Trump Says Physical Checkup At Walter Reed 'Checked Out Perfectly' Amid Recent Health Scrutiny

Martha Lillard’s Post-Polio Syndrome

Lillard contracted polio in 1953 when she was just five years old, during one of the worst outbreaks in U.S. history.

Before effective vaccines became available, the virus infected tens of thousands of Americans each year. While many people recovered, some developed paralytic polio, in which the virus attacks the nervous system, leading to paralysis and, in extreme cases, respiratory failure.

Doctors placed Lillard inside an iron lung, a large cylindrical machine that uses negative air pressure to help patients breathe by expanding and contracting the chest.

Although hospitals gradually replaced iron lungs with ventilators in the 1960s, Lillard continued using the ancient device because it proved to be the most effective method of respiratory support for her.

Her family said maintaining the iron lung became increasingly challenging as replacement parts and technicians familiar with the obsolete technology became hard to find. Still, Lillard continued using the machine well into her seventies.

Martha Lillard Refused To Let It Define Her

Despite spending most of her life inside the machine, Lillard refused to let it define her. According to her family members and previous interviews, she attended school from home through an intercom system connected to her classroom.

She also became fond of painting, writing poetry, composing music, and caring for rescued animals. She also volunteered with community organizations, including the Humane Society.

Lillard's passing comes more than 70 years after Jonas Salk's polio vaccine was introduced in 1955, followed by Albert Sabin's oral vaccine in the early 1960s. Widespread immunisation campaigns in the US significantly polio cases. The epidemic was eliminated from the country in 1979.

As one of the last survivors to depend on an iron lung, Martha Lillard's life serves as a reminder of both the devastating impact of vaccine-preventable diseases and the extraordinary developments made in public health.

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Donald Trump Says Physical Checkup At Walter Reed 'Checked Out Perfectly' Amid Recent Health Scrutiny

Updated Jul 12, 2026 | 05:36 PM IST

SummaryUS President Donald Trump's recent Truth Social post, in which he bashed Maggie Haberman's book, sparked concerns about his health again.
Trump Says Walter Reed Physical 'Checked Out Perfectly' Amid Recent Health Scrutiny

Credit: X

At 80, Donald Trump is the oldest person to serve as president of the United States. Scrutiny surrounding his physical and cognitive health has received heightened attention in recent years, particularly following former President Joe Biden's decision to end his 2024 reelection campaign due to age and fitness.

Trump's recent post on Truth Social has sparked concerns about his health again.

Donald Trump’s Physical At Walter Reed

In a recent post, US President Donald Trump said that his latest physical examination at Walter Reed National Military Medical Center came out clean, renewing public attention on his health and wellness.

Trump wrote, “I just finished a perfect physical at Walter Reed... I do it every six months, and I requested another Cognitive Test... I aced them all. Got every question right.” He also reiterated that “everything checked out perfectly.”

After Trump's post sparked confusion over whether he had undergone a medical checkup recently, the White House clarified that he was referring to the physical examination conducted in May.

Trump's Official Medical Report

Following the May examination, White House physician Capt. Sean Barbabella released a medical memorandum stating: “President Donald Trump remains in excellent health, demonstrating strong cardiac, pulmonary, neurological, and overall physical function.”

According to the report:

  • Trump scored 30 out of 30 on the Montreal Cognitive Assessment (MoCA).
  • His heart scan reportedly showed no abnormalities.
  • Laboratory tests and vital signs were within normal limits.
  • Physicians recommended continuing preventive measures, including regular physical activity, weight management, and a low-dose aspirin regimen.

The report noted improvement in previously observed lower-leg swelling associated with chronic venous insufficiency, a condition the White House disclosed last year.

The White House attributed the visible bruises on Trump's hands to frequent handshaking while taking aspirin for cardiovascular prevention. They physician further stated that Trump is currently on medication to manage his cholesterol levels.

“The President remains up to date on all appropriate preventive screenings and immunizations,” Barbabella stated. “Routine cancer screenings, cardiovascular risk assessment, and metabolic evaluations are current and within recommended intervals. Preventive counseling was provided, including guidance on diet, recommendation to take a low-dose aspirin, increased physical activity, and continued weight loss.”

Trump’s Health Under Scrutiny

Trump's post come weeks after New York Times reporters Maggie Haberman and Jonathan Swan’s new discussed concerns raised by some aides about his age, stamina, and endurance. In the post, Trump dismissed those claims, bashing Haberman.

The president's health has also drawn scrutiny in recent months. He was recently seen with a visible neck rash and a bruised right hand that appeared to be covered with makeup during the 2026 NATO Summit in Türkiye.

Trump also appeared unsteady on his feet, particularly while using stairs. During the summit's welcome ceremony, Turkish President Recep Tayyip Erdoğan, 72, was seen taking Trump by the arm and guiding him into position.

The White House Dismissed Trump’s Health Concerns

Also read: Under HHS's 'Make Hospital Food Healthier' Pledge, Trump Administration Pushes Hospitals To Offer Healthier Food

The White House has repeatedly dismissed concerns, attributing the bruising to the physical demands of Trump's public schedule.

“President Trump is the sharpest, most accessible, and energetic president in American history,” White House spokesperson Davis Ingle said in a statement provided to The Independent. “The President is a man of the people and he meets more Americans and shakes their hands on a daily basis than any other President in history.”

The White House previously said the swelling in his legs was due to chronic venous insufficiency, a common condition affecting blood flow in the legs.

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