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.

Two adults in central North Carolina have died after contracting West Nile virus, prompting health authorities to urge residents to take precautions against mosquito bites as cases continue to rise across the United States.

The North Carolina Department of Health and Human Services confirmed the deaths on October 9, warning that senior citizens and people with underlying health conditions face a higher risk of developing severe illness from the virus.

The US Centers for Disease Control and Prevention (CDC) has reported 11 human cases of West Nile virus in North Carolina this year. The state’s first human case of 2026 was identified in a Gaston County resident in August.

Dr Cameron Wolfe, an infectious disease expert with Duke Health, told WRAL that people infected with the virus may not realise they have it. “If you get West Nile, you probably won't know it,” he said.

Symptoms Of West Nile Virus

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West Nile virus circulates in the environment between mosquitoes, and the species is called Culex. It also circulates via birds. People become infected when the mosquitoes feed on infected birds and then bite people.

The CDC says that people are dead-end hosts, because unlike birds, they do not develop high enough levels of virus in their bloodstream and cannot pass the virus on to other biting mosquitoes.

The virus is rarely transmitted from person-to-person by blood transfusion, organ transplantation, and mother to baby, during pregnancy, delivery, or breastfeeding.

Because the virus can be transmitted through blood and organ transplantation, persons who were recently diagnosed with West Nile virus infection should not donate blood or bone marrow for 120 days following infection.

Symptoms can include fever, headache, body aches, joint pain, vomiting, diarrhoea and rash. In rare cases, the infection can become severe and affect the brain and nervous system, leading to encephalitis or meningitis.

Encephalitis is the inflammation of the brain can cause confusion, altered consciousness, seizures and, in severe cases, coma.

Meningitis is the inflammation of the membranes surrounding the brain and spinal cord can cause severe headaches, fever and neck stiffness.

Acute flaccid paralysis, also one of the complications, occurs when the virus can damage nerve cells controlling muscles, causing sudden weakness or paralysis. In severe cases, respiratory muscles can be affected, leading to breathing failure.

Older adults and people with conditions such as diabetes, high blood pressure, cancer or weakened immunity are at greater risk of developing severe disease.

There is currently no vaccine to prevent West Nile virus infection in humans, and no antiviral treatment is available. Care for severe cases focuses on managing symptoms and complications.

How To Prevent?

Health officials continue to emphasize simple prevention measures as the best defense against WNV. These are:

• Using EPA-approved insect repellents
• Wearing long-sleeved shirts and pants outside
• Adding screens on windows and doors to prevent mosquitoes from entering
• Eliminating standing water within homes, such as flowerpots, gutters, and bird baths

By doing these, residents will be able to drastically lower their chances of infection, particularly when it comes to the active mosquito season.

Women with autoimmune diseases are more likely than men to get told that their symptoms were merely psychological, resulting in longer delays and timely treatment.

A new international study published in The Lancet’s eClinicalMedicine studied the diagnostic experiences of 6,607 people living with autoimmune diseases.

Researchers from the University of Cambridge and the University of East Anglia found that 43% of women reported that their symptoms had previously been attributed to psychiatric causes, compared to 33% of men.

Women were also more likely to report being told their physical symptoms were psychosomatic, meaning they were caused by psychological factors. This was reported by 34% of women, compared to 22% of men.

After accounting for factors like age, disease group, continent and household finances, women were nearly 50% more likely to report a psychiatric misdiagnosis and almost 75% more likely to report a psychosomatic misdiagnosis than men.

The findings highlight gender disparities patients with autoimmune conditions experience during the diagnostic process, especially when the condition is not immediately ascertainable through clinical tests.

Women Report Longer Delays In Diagnosis

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The study also found differences in how long patients waited between the onset of symptoms and receiving an autoimmune disease diagnosis.

Among women, the most frequently reported time to diagnosis was one to two years. For men, the most common interval was less than three months. Women also reported attending more healthcare consultations before receiving a diagnosis.

“Patients with autoimmune diseases can present with symptoms that can initially be difficult to explain medically, and sometimes it can take months or years before a diagnosis becomes clear,” said Dr Melanie Sloan, from the University of Cambridge and the University of East Anglia.

“Our findings highlight that psychological or mental health explanations can be given too soon. This is true for both sexes, but our study suggests that females may be particularly vulnerable to these types of misdiagnoses,” she added.

Autoimmune diseases develop when the immune system mistakenly attacks the body's own tissues. For example, conditions like lupus, rheumatoid arthritis and multiple sclerosis. Statistically, women are more likely to develop autoimmune diseases than men.

Diagnosis can be challenging because early symptoms may include fatigue, persistent pain, sleep disturbances and low mood. These symptoms are common in other conditions, may fluctuate over time and can affect multiple parts of the body.

Patient Accounts As Important As Medical Records

The researchers said that patient accounts are important because medical records may not capture the full diagnostic journey, including when symptoms first appeared or how patients experienced consultations.

Shaista Tayabali, a patient partner and co-author of the study, said, “The differences between the sexes in misdiagnoses for people with autoimmune diseases is stark. The fact that females reported higher rates of psychiatric and psychosomatic misdiagnoses than males, yet reported lower misdiagnoses for other physical diseases, suggests that historical gender biases remain a challenging aspect of the diagnostic journey.”

The researchers stressed that the findings do not mean psychological diagnoses are always incorrect. People can have both autoimmune and mental health conditions, and some autoimmune diseases, including lupus, can themselves affect the brain.

The team called for clinicians to remain alert to possible autoimmune conditions, acknowledge diagnostic uncertainty and reassess patients when symptoms persist.

A 46-year-old mother of six in Oregon, US, lost both legs and suffered multiple life-altering injuries after developing a severe infection following a hysterectomy.

According to a lawsuit alleging medical negligence, Trisha Stevens underwent the hysterectomy in October 2024. The lawsuit alleges that her infection was not diagnosed on time and treated promptly, which eventually led to peritonitis, septic shock and multiple organ failure.

Stevens and her husband are seeking $68.5 million in damages from several doctors and Legacy Health. The allegations have not been established in court yet.

Stevens lost both legs above the knees, her right hand and parts of her left hand. She also lost parts of her lips and tongue and suffered spinal cord damage that left her paralysed from the waist down.

“I came home having lost both of my legs and my right hand. My left hand was left unusable after the necrosis. I lost parts of my lips and tongue, and I live with paralysis in a body that no longer responds the way it once did,” Stevens told local news outlet KGW.

Her husband, Brian, now cares for her as she navigates the physical, mental and emotional consequences of the sepsis.

What Is Sepsis?

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Sepsis is a life-threatening medical emergency that occurs when the body's response to an infection gets dysregulated, damaging its own tissues and organs. It can develop from infections affecting the lungs, urinary tract, skin or gastrointestinal system, as well as infections after a surgery.

Without timely treatment, sepsis can progress to organ failure and death. In severe cases, it can cause septic shock, in which blood pressure falls dangerously low and organs receive insufficient blood flow.

Stevens' case involved peritonitis, an inflammation of the tissue lining the abdominal cavity, followed by septic shock, according to the lawsuit.

Severe infection and septic shock can disrupt blood circulation and reduce oxygen delivery to tissues. When blood flow becomes critically inadequate, tissue can die, which is known as necrosis. In some cases, surgeons may need to amputate affected limbs to remove dead or severely damaged tissue and prevent further complications.

However, limb loss is not an inevitable outcome of sepsis. It represents a severe complication that can occur in some critically ill patients.

Warning Signs

The US Centers for Disease Control and Prevention identifies several possible signs of sepsis:

• Fever, shivering or feeling unusually cold
• Confusion or disorientation
• Rapid heart rate or a weak pulse
• Shortness of breath
• Clammy or sweaty skin
• Extreme pain or discomfort

After surgery, worsening abdominal pain, fever, unusual bleeding, wound discharge or a sudden deterioration in general health warrants urgent medical assessment. Symptoms should not be dismissed simply because a patient has recently undergone a procedure.

Sepsis requires immediate evaluation and treatment. Management may include antibiotics, intravenous fluids, support for organ function and, where necessary, surgery to control the source of infection.