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.

Tick bites are becoming a huge health care issue, as they can cause diseases like Lyme. Due to the recent surge in tick bites throughout the United States, it has become more important to know everything about the situation and the disease.

The Centers for Disease Control and Prevention (CDC) has already issued a warning about a surge in tick bite cases and possible Lyme disease in the Northeastern states, where tick-related emergency room visits have risen. The Midwest is the second most affected region.

Harvard Health states that about 90% of cases have been reported in 14 states: Connecticut, Maine, Virginia, Maryland, Massachusetts, Minnesota, New Jersey, New Hampshire, New York, Pennsylvania, Rhode Island, Vermont, Wisconsin, and West Virginia.

CDC reports ER visits related to tick bites hit their highest levels for spring since 2017. The United States has been fighting with tick-related issues for decades. The nation sees an estimated 476,000 people treated for Lyme disease each year.

Also Read: The Mystery Behind Trump’s Hair-Loss Drug And The Bigger Health Questions It Raises

What Is Lyme Disease?

Lyme disease is caused by a bacterium called Borrelia burgdorferi. This infectious disease is spread by infected ticks. The most common cause of these diseases in humans is bites from blacklegged ticks, though other variants can also be carriers. The Harvard Health says that most patients do not remember being bitten by a tick.

Also Read: Why Thousands Of Black Men In The UK Are Now Being Invited For Prostate Cancer Screening?

Unique Symptoms Of Lyme Disease

Heart Problems

Lyme can impact the cardiac, neurologic, and rheumatologic systems. The CDC says that 1 out of 100 patients has Lyme bacteria in their heart tissues. The condition is also called Lyme carditis.

Brain Fog

Advanced brain imaging shows that Lyme disease brain fog is real. It can lead to various effects, including difficulty focusing, thinking, reading, and absorbing information.

Bell's Palsy

There are 12 essential nerves, also known as the cranial nerves, that originate in the brain and play a crucial role in sensory functions and movements in the different parts of the head, face, neck, and torso. Lyme disease can also affect those nerves, leading to Bell's Palsy.

Eye Problems

Lyme can cause sudden vision loss, damage to the optic nerve, and neurotrophic keratitis. Other symptoms include blurry vision, eye floaters, tearing, and extreme sensitivity to light.

Hearing Problems

The most common Lyme-related hearing issues are tinnitus, vertigo and dizziness, headache, and unilateral sensorineural hearing or hearing loss in one ear.

Arthritis

The disease can cause swollen knees, a low-grade fever, or a limp. It usually starts in the fourth week after being bitten.

Fatigue

This is not just any fatigue, but a weakness that is debilitating. People with a history of Lyme were 8 to 15 times more likely to report severe or moderate fatigue than those who have never had the disease.

President Donald Trump's recent physical examination has been in the news, and now it is about a drug that was omitted in the test, which is making headlines. This very drug is raising questions about the health condition of President Trump, as he has been taking this drug for years. This medication is finasteride, a generic name for Propecia, which is a hair loss drug.

President Trump's recent test report at Walter Reed National Military Medical Center contains a list of drugs that he takes, but in that list, one important name was missing, and that is his hair loss drug, Propecia. According to The Washington Post, when they asked officials if the president still takes that drug, the White House said it was not obligated to reveal the full range of medications the president was taking.

The White House said, “The current report reflects all medications deemed clinically relevant to disclose at this time.” It added, “No additional undisclosed conditions or procedures materially affecting his health status were omitted from this report.”

Though even after the statement of the White House, experts are still questioning his health condition and the hair loss drug. Robert Klitzman, a psychiatrist who leads Columbia University’s master’s program in bioethics, said, “It raises significant questions of what else is possibly not being revealed.”

Steve Joffe, a physician and bioethicist at the University of Pennsylvania Perelman School of Medicine, said to the Post, “There’s a certain level of openness and disclosure that people have a right to expect from someone in whom they place such profound trust.”

President Trump's mysterious drug list, with many omissions, concerns experts as it lacks what matters the most.

Also Read: USDA Flags Suspected New World Screwworm Fly Detection in Texas

Why is Trump's Boasting About Cognitive Test Score Making Experts Question?

President Donald Trump is saying that he has achieved a full score in a very difficult test. He said, “Unlike other US Presidents, none of whom have ever taken an approved, high difficulty, Cognitive Test, I scored a perfect 30 out of 30, considered ‘extreme intelligence.’”

“In fact, this is my fourth such test, all PERFECT or 120 correct answers out of 120 questions asked! Anyone rarely gets a Perfect Score, especially when achieved four times in a row.” He wrote in his post.

He also demanded that the candidates for president and vice president should also go through this kind of test by saying, “In fact, this is my fourth such test, all PERFECT or 120 correct answers out of 120 questions asked! Anyone rarely gets a Perfect Score, especially when achieved four times in a row.”

Also Read: Why Thousands Of Black Men In The UK Are Now Being Invited For Prostate Cancer Screening?

Why Did Experts Question Repeated Testing?

Trump’s claims were immediately questioned by experts like Dr. Jonathan Reiner and Abby Phillip of CNN. They argued that repeated tests may not provide the same value. According to them, as the president had taken the test several times and the questions didn't change that much, it was easy. Other than that, the test is not designed to calculate intellect; it is more of a dementia screening test.

The recent hantavirus outbreak aboard the luxury ship MV Hondius, which drew global attention and raised concerns about the potential for wider spread, has highlighted the need for better therapeutics and vaccines.

The outbreak claimed three lives and infected 13 people. While those affected recovered from the infection, they had contracted the Andes strain, which carries a risk of human-to-human transmission. There is currently no specific antiviral drug or vaccine for the Andes virus.

Now, researchers writing in The Lancet Infectious Diseases have reported early promising results for tocilizumab as a treatment for severe hantavirus pulmonary syndrome (HPS).

The researchers said tocilizumab warrants further evaluation as a treatment for severe hantavirus pulmonary syndrome.

What Did The Study Find?

Also read: Can Hantavirus Spread Through Semen And Breast Milk? What Experts Say

The study is based on a case series involving 10 hantavirus patients treated at Hospital Zonal de Bariloche, Argentina, between June 1, 2024, and May 6, 2026.

Tocilizumab is an immunosuppressive medication used to treat severe inflammatory conditions, including severe COVID-19 and autoimmune diseases such as rheumatoid arthritis.

Researchers from San Carlos de Bariloche, Argentina, said that under an ethical framework allowing the emergency use of unproven medications outside clinical trials when no satisfactory alternatives exist, tocilizumab was administered to five eligible patients with laboratory-confirmed severe hantavirus pulmonary syndrome.

Five other patients received standard supportive care without Tocilizumab because they were too sick or the medication was unavailable when treatment was being considered. The case series represents the first descriptive report from a larger ongoing study.

Four of the five patients treated with Tocilizumab survived and were discharged from intensive care, whereas all five patients who did not receive Tocilizumab died shortly after admission to intensive care.

There is currently no approved vaccine or specific antiviral treatment for the Andes strain, underscoring the importance of further research into potential therapies such as tocilizumab.

However, the authors said, "the findings should not be interpreted as evidence for the implementation of routine use of Tocilizumab to treat severe hantavirus pulmonary syndrome, but they do support the need for urgent further research".

What Is Hantavirus?

According to the World Health Organization (WHO), hantaviruses are zoonotic viruses that naturally infect rodents and are occasionally transmitted to humans.

Globally, an estimated 100,000 to 200,000 hantavirus infections occur each year. The majority of cases are reported in Asia, particularly China. Most infections are sporadic or occur in small clusters linked to contact with infected rodents.

In humans, hantavirus infection can cause severe illness and death, although disease severity varies depending on the virus strain and geographical region.

Hantavirus Pulmonary Syndrome

Hantavirus pulmonary syndrome is a severe viral disease caused by the Andes virus, a type of hantavirus endemic in several regions of the Americas, including Argentina and Chile. In recent years, parts of Argentina have seen an increase in hantavirus cases.

The severe respiratory illness can rapidly become fatal. Reported fatality rates range from 20 per cent to 40 per cent, depending on the outbreak setting, quality of medical care, and surveillance capacity.

How Does Hantavirus Spread?

Hantavirus is primarily spread through contact with infected rodents, including exposure to:

• Urine
• Droppings
• Saliva
• Less commonly, scratches or bites from infected rodents