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.

Whooping cough deaths are rising in the US, as the country sees a surge in the infection. So far, tens of thousands have been infected, with at least 13 people dead from the bacterial infection this year. While the infection rate is lower than last year it continues to remain above typical pre-pandemic years. The Scientific American reports that the number of deaths have also seen a rise.

What Causes Whooping Cough?

Whooping cough or what is scientifically known as the respiratory infection called pertussis is severe, and is characterized by violent cough. It could leave people, especially infants, struggling to breath. While it is rarely fatal, it can have lingering symptoms and thus have earned the name '100-day cough'. Whooping cough is caused by the bacterium Bordetella pertussis, which emits toxins into a person's respiratory tract. This is why early treatment with antibiotics vital to managing the infection. The bacterium is easily spread between people, through direct contact and droplets from mouth or nose. This is what makes it contagious.

According to the Centers for Disease Control and Prevention, the US and its territories recorded 27,871 confirmed cases of whooping cough as of December 20 this year. By the same point last year, cases had reached 41,922, marking a sharp rebound after four pandemic years when annual infections stayed below 10,000.

Also Read: What Is Candida Auris Infection? The Deadly Superbug Spreading In US

How Lethal Is Whooping Cough?

As of now, 13 people have died of pertussis this year. As per the report from the Pan American Health Organization, and provision CDC data from last year, 10 deaths were noted in 2024, while three increased in 2025.

Public health experts worry that persistently high whooping cough cases this year, following last year’s surge, may reflect falling vaccination rates. The DTaP vaccine protects infants and young children, while Tdap covers older children and adults. CDC guidelines recommend multiple doses starting at two months, yet only 79 percent of children born in 2021 had received four DTaP doses by age two.

Who All Can Get The Shot For Whooping Cough?

Whooping cough is most dangerous, especially among infants under a year old. Public health experts also recommended that pregnant people must get the Tdap vaccine to transfer the antibodies to newborns. All adults are also advised to get the Tdap vaccine in every 10 years to ensure a continued protection.

What Are The Common Symptoms Of Whooping Cough?

Early symptoms that can last for 1 to 2 weeks usually include:

• Runny or stuffed-up nose
• Low-grade fever (less than 100.4°F)
• Mild, occasional cough

CDC notes that later symptoms could be rapid, violent, and uncontrolled coughing fits. About one to two weeks after early symptoms begin, many people develop intense coughing spells, known as paroxysms. These fits typically last one to six weeks, but in some cases can continue for up to 10 weeks. As the illness progresses, the cough becomes more frequent and severe.

During these episodes, people may produce a high-pitched “whoop” when breathing in, vomit during or after coughing, feel extreme exhaustion, struggle to breathe, have trouble sleeping, or even fracture a rib. Many describe it as the worst cough they have ever experienced.

As 2025 ends, more and more people are falling ill. With a surge in flu cases, and mystery disease like adenovirus, thousands of people are already infected. Now, a deadly fungus, also considered a superbug due to its resistance to all types of antibiotics. This is Candida auris.

Also Read: What To Know About The Super Flu Surge In US; 'It Will Likely Get Worse', Say Experts

What Is Candida Auris? The Superbug Resisting All Antibiotics

It is a type of invasive year that can cause deadly infections in people, especially with weakened immune system. As of now, it has infected at least 7,000 people across 27 US states, confirmed the data from the Centers for Disease Control and Prevention (CDC).

The fungus can spread easily in healthcare settings, especially in hospitals and nursing homes. It is also spreading at an "alarming" rate, says CDC. The Hill reported that some strains of the fungus are troublesome because they are resistant to all types of antibiotics that are commonly used to treat fungal infections.

Due to fungus's resistance to antibiotics, it is becoming difficult to contain. As of now, more than half of the states have reported clinical cases of Candida auris in 2025. Another factor that makes it more dangerous is that standard lab tests cannot detect it. In a CDC press release, a CDC epidemiologist Dr Meghan Lyman said, "The rapid rise and geographic spread of cases is concerning and emphasizes the need for continued surveillance, expanded lab capacity, quicker diagnostic tests, and adherence to proven infection prevention and control."

Origins Of Candida Auris - The Superbug

This was first discovered in 2009 in Japan from the ear canal of a patient. Since then, it has spread to many countries, including India, where it was identified as a major public health threat in 2014.

Also Read: New Year's Eve Safety Tips, Fire Departments Across US Share Ways To Welcome 2026 Safely

Can Anyone Fight Off This Superbug?

Healthy people could possibly fight off this infection on their own. However, the population vulnerable could find it more difficult to fight off this deadly fungus. Melissa Nolan, an assistant professor of epidemiology and biostatistics at the University of South Carolina told Nexstar, "If you get infected with this pathogen that’s resistant to any treatment, there’s no treatment we can give you to help combat it. You’re all on your own."

Like the mystery disease, adenovirus, this fungus too can survive on surfaces, said Nolan. “It’s really good at just being, generally speaking, in the environment. So if you have it on a patient’s bed for example, on the railing, and you go to wipe everything down, if in whatever way maybe a couple of pathogens didn’t get cleared, then they’re becoming resistant. And so over time, they can kind of grow and populate in that hospital environment," said Nolan.

Is This Superbug Only Limited To The US?

Studies show that this superbug is not just limited to the US, but is spreading globally. It has already been found in at least 61 countries and on 6 continents. The study also found that the fungus is becoming more and more drug resistant, all due to its ability to switch from a yeast-like growth to a filament-driven spread. It also contains a cell wall that has proteins and makes it easier to stick on human skin "like glue". This is what enables it to colonize the human cells.

Former Australian batter Damien Martyn, 54, is suffering from meningitis, and was taken ill on Boxing Day in a Queensland hospital. The news on his condition came on Tuesday evening, and details confirmed to ESPNcircinfo noted that he is currently in an induced coma.

Former players, his colleagues and the sporting community is rallying around the 54-year-old, who currently "is in for the fight of his life" said the former AFL player Brad Hardie. His former teammate Darren Lehmann also told Martyn to "keep strong" on X.

“He is getting the best of treatment and [Martyn’s partner] Amanda and his family know that a lot of people are sending their prayers and best wishes,” said Adam Gilchrist his former Test and Western Australia teammate. Cricket Australia boss, Todd Greenberg, also wished Martyn a quick recovery. “I’m saddened to hear of Damien’s illness,” he said. “The best wishes of everyone at CA and in the wider cricket community are with him at this time.”

What Is Meningitis?

According to NHS UK, it is an infection of the protective membranes that surround the brain and spinal cord. It can affect anyone, but is most common in babies.

While fever is not always present, it is usually considered as one of the classic symptoms of meningitis. It is important to know the varied symptoms, causes, and treatments of meningitis for early diagnosis and proper management of the disease.

Meningitis is an infectious illness that brings about inflammation in the meninges. The most common cause of such inflammation is bacterial or viral infections, though other causes are also possible including fungal, parasitic, or non-infectious causes (autoimmune disease, head injury, or brain surgery). Meningitis may be caused by bacterial meningitis, which the Centers for Disease Control and Prevention (CDC) indicates can be so severe and bring about conditions like hearing loss, vision problems, and death if not received on time.

Does Meningitis Always Result in Fever?

Although fever is a common presentation of meningitis, it is not always present. Certain people, particularly those with compromised immune systems, newborns, or the elderly, can get meningitis without significant temperature elevation. In these instances, other signs such as headache, confusion, or stiff neck can be more suggestive symptoms of the disease.

Fever in meningitis is usually caused by the body's immune reaction to the infection, but some factors can affect its occurrence or absence, such as:

• The nature of meningitis (bacterial, viral, fungal, or non-infectious)
• The immune response of the individual
• Pre-existing health conditions
• The course of the disease

Identifying the Symptoms of Meningitis

Meningitis signs may differ based on the reason and severity of infection. Even though fever is a common symptom, it should also be noted for other vital symptoms, which are:

• Severe headache
• Stiff neck
• Photophobia (sensitivity to light)
• Nausea and vomiting
• Confusion or inability to concentrate
• Fatigue or trouble waking up
• Seizures
• Skin rash (in meningococcal meningitis)

Symptoms in infants can be different and also involve excessive crying, irritability, feeding problems, a bulging soft spot (fontanelle) on the head, and unusual lethargy.