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.

The US Centers for Disease Control and Prevention (CDC) has confirmed that the Salmonella outbreak that infected 34 people in 13 states in the country is linked to backyard poultry.

The CDC, in its latest report, noted that backyard poultry, like chickens and ducks, can carry Salmonella germs even if they look healthy and clean. To date, no deaths have been associated with this outbreak, which started on February 26 and lasted up to March 31. However, 13 people have been hospitalized, the federal agency said.

Notably, the CDC analysis revealed that the Salmonella strain may be resistant to the antibiotic fosfomycin. Samples from eight of those patients showed there could be resistance to other antibiotics commonly used in Salmonella infections.

States Reporting Salmonella Outbreak

Michigan has the most cases, with six, followed by Wisconsin and Ohio, each of which has five cases.

Indiana, Kentucky, and Maine each have three cases. Florida, Illinois, Mississippi, New Hampshire, and Tennessee have each confirmed a single case.

Children Under Age 5 More Affected

Forty-one percent of case-patients in this outbreak are under the age of 5 years, and of the 29 people interviewed by investigators, 23 (79%) reported contact with backyard poultry in the days prior to illness.

“Children younger than 5 years old shouldn't handle the birds (including chicks and ducklings) or anything in the area where the birds live and roam. They are more likely to get sick from Salmonella,” the CDC said.

“Of 14 people who reported owning backyard poultry, 13 (93%) bought or obtained poultry since January 1, 2026,” the CDC said. “People reported getting their poultry from various places, including agricultural retail stores.”

The CDC said it will continue to investigate the hatcheries associated with cases.

What Can You Do To Be Safe?

• Always wash your hands for 20 seconds after touching birds, their supplies, or collecting eggs.
• Use a pair of dedicated shoes or boots for your coop and don't wear them inside your house.
• Keep birds and supplies outside the house to prevent spreading germs into your house.
• Children younger than 5 years old shouldn't handle the birds (including chicks and ducklings) or anything in the area where the birds live and roam. They are more likely to get sick from Salmonella.

The CDC also advised businesses to

• Source poultry from hatcheries that take steps to reduce Salmonella contamination.
• Clean and sanitize poultry display areas between shipments of new poultry.
• Provide handwashing stations or hand sanitizers next to poultry display areas and tell customers to wash their hands right after leaving these areas.
• Display poultry out of reach of customers, especially chil­dren, so they cannot easily touch the poultry.

What is Salmonella?

As per the US Food and Drug Administration (FDA), Salmonella is a group of bacteria that can cause gastrointestinal illness and fever called salmonellosis. It can be spread by food handlers who do not wash their hands and/or the surfaces and tools they use between food preparation steps. It can also happen when people consume uncooked and raw food. Salmonella can also spread from animals to people.

The FDA notes that people who have direct contact with certain animals, including poultry and reptiles, can spread the bacteria from the animal to food if hand washing hygiene is not practiced.

Pets, too, could spread the bacteria within the home environment if they eat food contaminated with Salmonella.

Most people infected with Salmonella develop diarrhea, fever, and stomach cramps 6 hours to 6 days after being exposed to the bacteria.

The illness usually lasts 4 to 7 days, and most people recover without treatment.

In some people, the illness may be so severe that the patient is hospitalized.

Children younger than 5, adults 65 and older, and people with weakened immune systems are more likely to have severe illness.

US President Donald Trump-backed decision by the Centers for Disease Control and Prevention (CDC) to stop recommending giving infants a dose of the hepatitis B vaccine within 24 hours after birth is likely to lead to hundreds more infections, deaths, and millions of dollars in higher costs, according to new research.

The research, published in JAMA Pediatrics, comes as federal vaccine advisers to Health Secretary Robert F. Kennedy Jr. voted in December 2025 to reverse the long-standing recommendation to delay the first shot until at least two months of age for infants born to mothers who test negative for the virus.

While pediatricians, public health experts, and dozens of medical groups warned that it could harm children and their families, the new JAMA studies modelled the potential impact of the policy.

What Did The Studies Predict?

The first study estimated that delaying the first hepatitis B vaccine dose by two months for babies born in a single year to mothers who tested negative — about 80 percent of the 3.6 million US births annually — would increase lifetime health-care costs by at least $16 million, The Washington Post reported.

If vaccination were delayed by seven months, it would cost an additional $19.8 million.

The second study modeled what would happen if only 10 per cent of babies born to unscreened mothers received a birth dose; an additional 628 babies would get infected.

“One of the most concerning implications is how many more infected Hep B babies will we see,” said co-author Rachel Epstein, a pediatric and adult infectious diseases clinician at Boston Medical Center.

“A universal birth dose helps prevent a substantial number of infections in babies of a lifelong condition that we do not have a cure for,” she added.

CDC Had No evidence To Overturn Hepatitis B Vaccine Policy

Since 1991, all infants born in the US have received the first dose of hepatitis B vaccine within 24 hours of birth, a strategy that led to close to a 99 percent decline in infections among children.

Calling the universal birth-dose policy "a safety net", public health and medical experts noted that nearly 15 percent of pregnant women miss recommended hepatitis B screening. More than half of those who test positive do not receive appropriate follow-up care.

Delaying the initial dose also decreases the likelihood that a child will complete the three-shot series needed for full protection, hepatitis experts have said.

The authors argued that the CDC advisory panel departed from standards established for over three decades and failed to weigh key evidence.

“We noticed that the committee did not have the evidence they needed to inform their decision,” co-author Eric Hall, an assistant professor of epidemiology at Oregon Health and Science University, was quoted as saying to The Post.

“But this group kind of blew past all that and didn’t make any effort to fill the evidence gaps that they might have had. They just went ahead anyway.”

Also read: Hepatitis Infections Claims 1.3 Million Lives Worldwide, India Among Top Contributors: WHO

What is Hepatitis B?

Hepatitis B is a viral infection that affects the liver. It is highly contagious and spreads when blood, semen, or other bodily fluids from a person who carries the virus enter the body of someone who is not infected.

Hepatitis B can also pass from an infected mother to her baby during childbirth, whether through a vaginal delivery or a C-section. It is the most common route of transmission.

Vaccination is the most reliable way to prevent hepatitis B. The shots offer strong protection in infancy and continue to shield individuals well into adulthood.

Babies usually receive a three-dose series. A scientific review by the Vaccine Integrity Project found that 95 percent of healthy infants develop enough immunity after the third dose. The vaccine also lowers the risk of infection by nearly 70 percent in babies born to mothers who have hepatitis B.

A biryani feast followed by a serving of watermelon proved deadly for a family of four in Mumbai on Sunday. The incident was reported from the Pydhonie area, where an entire family passed away after eating biryani for dinner and some watermelon before calling it a night. They had watermelon around 1.00 am or 1.30 am, and their condition started to deteriorate around 5.00 am. They all experienced diarrhoea and nausea and eventually passed away. The mystery now remains: was it a case of accidental watermelon poisoning or something else? Abdullah Dokadia (40), his wife Nasreen Dokadia (35), and their two daughters, Ayesha (16) and Zainab (13), lost their lives, and the police are currently suspecting it to be a case of food poisoning. But can eating watermelon really kill you? Let us find out.

What are the signs of watermelon poisoning?

Watermelon is a popular summer fruit that people enjoy eating during the hotter months. It is 70 per cent water, highly hydrating, and also beneficial for weight loss. However, going overboard is discouraged by doctors, as overeating or consuming adulterated watermelon can lead to abdominal discomfort and digestive distress. Watermelon-related food poisoning can occur because of E. coli or salmonella infections. It can cause rapid dehydration, diarrhoea, cramps, fever, weakness, and, in extreme cases, even death.

What happens when you eat too much watermelon?

Dr Aarti Ullal, Physician and Diabetologist at Gleneagles Hospital, Parel, in an interaction with Health and Me, said, “Eating too much watermelon may lead to bloating, stomach discomfort, or loose motions, mainly because of its high water and natural sugar content. In some individuals, especially those with sensitive digestion, it can also cause acidity or mild cramps and disturb their peace of mind.”

Dr Ullal also stated that watermelon poisoning can occur when the fruit is contaminated with pesticides, chemicals, or bacteria due to poor handling or improper storage. The symptoms may include nausea, vomiting, abdominal pain, diarrhoea, and weakness. These are typically short-term digestive issues but may require medical attention if severe or if they interfere with daily routine. However, questions also arise regarding watermelon allergies. Watermelon allergy is rare and may cause itching in the mouth, swelling, rashes, or stomach upset soon after consumption.

How to check if your watermelon is adulterated?

To check if a watermelon is adulterated, look for an unnaturally bright red colour, cracks, a chemical smell, or an overly soft texture. Always wash the outer surface, as it may contain pesticides or chemicals, before cutting. Make sure to buy from trusted sources to avoid any health issues. Watermelon is safe and healthy to consume, but moderation and proper hygiene are key.

Can eating a watermelon kill you?

Conclusively, it can be said that eating a watermelon specifically should not cause deaths. However, if you bring the fruit home, it is advised to check it for signs of adulteration before consuming. It helps eliminate the possibility of side effects, just in case. However, if you experience food poisoning-like symptoms, consult a doctor immediately.