New Covid Strain: If you have recently been feeling unwell with a sore throat and fever, chances are you may have caught one of the new COVID strains spreading this autumn. The variants XFG, also being called Stratus, and NB.1.8.1, nicknamed Nimbus, are currently the most common types of coronavirus circulating across the UK and the US.

A recent study now suggests that one particular symptom caused by these new strains might last for life. While a hoarse or rough voice has emerged as a new and widely seen sign of infection, most other symptoms remain the same as those reported in earlier waves.

COVID Symptoms 2025: What Makes the New Strain Different?

As winter draws closer, many people are experiencing cold-like symptoms such as a runny nose, cough, and mild fever. In many cases, these are now being linked to COVID-19, as infection rates have risen to some of the highest levels seen this year.

The XFG strain, a sub-variant of the Omicron family, was first detected in January and has now become the dominant strain in the UK. Data from the UKHSA show that XFG accounts for around 38.3% of all COVID cases, while its subtype, XFG.3, makes up roughly 32.8%. Combined, the Stratus variant is now connected to more than 60% of global COVID cases, according to the WHO.

The Symptom That Could Last For Life

Loss of smell was one of the hallmark symptoms of earlier COVID infections. However, new research has found that for many people, this problem never completely goes away. A study led by the U.S. National Institutes of Health (NIH) discovered that two years after infection, nearly 80% of participants who had reported a change in their sense of smell still performed poorly in scent-recognition tests. Around one in four had severe smell loss or had lost the ability entirely.

Dr. Leora Horwitz, one of the study’s lead authors, explained that the loss of smell can deeply affect daily life and emotional health. She added that it can even become dangerous, since people may not detect smoke, gas leaks, or spoiled food. The problem occurs due to inflammation in the olfactory system triggered by the virus, she said.

The research compared thousands of individuals who had previously tested positive for COVID with those who had not. Participants were asked to identify 40 different scents in a multiple-choice test to measure the level of impairment.

Unique Symptoms of New COVID Strain in UK

The Stratus variant shows a slightly different pattern of illness compared to earlier versions. While symptoms like fever, cough, and fatigue remain common, doctors have noticed new signs such as a hoarse or raspy voice.

This strain follows Nimbus, which has been linked to extremely painful sore throats described as feeling like “razor blades.” Other possible symptoms of Stratus include shortness of breath, chest tightness, body aches, headaches, nausea, stomach upset, loss of appetite, brain fog, and sometimes a change in taste or smell, though the latter is now less frequent.

Health experts advise seeking medical help if any of these symptoms persist or worsen. Treatment options may include antiviral medicines, rest, and over-the-counter remedies for symptom relief.

Although global tracking of COVID cases has slowed since free testing ended, available data show infections have again surged to high levels. UKHSA reports that nearly 9% of all COVID tests conducted in early September were positive, the highest rate recorded since last November. Among samples taken at general practices, 10.8% tested positive, while hospital testing showed 8.9% positivity.

October is Breast Cancer Awareness Month, making it the perfect time to focus on habits that can help protect your health. While no single food can guarantee prevention, research shows that certain nutrients and antioxidants found in everyday foods may play a role in reducing the risk of breast cancer. For women, especially those with risk factors, incorporating these foods into your diet can be a meaningful step toward prevention.

Understanding Breast Cancer

Breast cancer occurs when breast cells start to grow abnormally and form tumours. If these tumours are not treated, they can spread to other parts of the body and become life-threatening. According to the World Health Organization (WHO), this disease claimed an estimated 670,000 lives worldwide in 2022. In India, breast cancer is also increasing, with one in 28 women now at risk. This makes it all the more important to understand ways to lower risk through lifestyle and dietary choices.

6 Foods To Prevent Breast Cancer

Nutritionist and weight loss specialist Leema Mahajan took to her Instagram to highlight the power of food in breast cancer prevention. She emphasizes starting early: “Introducing these foods into your diet from a young age can help reduce your chances of developing this disease later in life.” Mahajan identifies six key foods backed by research for their potential protective benefits.

1. Pomegranate

Pomegranates are rich in compounds called ellagitannins, which studies suggest may help slow down the growth of cancer cells and limit estrogen-driven tumour development. Mahajan recommends enjoying one cup of fresh pomegranate each day. “Fresh pomegranate seeds can support your body’s fight against abnormal cell growth. It’s simple, delicious, and effective,” she says.

2. Cruciferous Vegetables

Vegetables like broccoli, cauliflower, cabbage, and Brussels sprouts belong to the cruciferous family, known for their cancer-fighting properties. These vegetables contain sulforaphane, a compound that aids the liver in breaking down harmful estrogen by-products and may help prevent tumour formation. Mahajan advises, “Include cruciferous vegetables in your meals three to four times a week. You can eat them raw in salads or lightly steamed to retain their nutrients.”

3. Berries

Berries such as blueberries, strawberries, and raspberries are packed with antioxidants, particularly anthocyanins, which help combat cell damage and inflammation. Adding a handful of berries to your breakfast or as a snack is a tasty and nutritious way to support your body’s natural defenses.

4. Fatty Fish

Omega-3 fatty acids found in salmon, mackerel, and sardines may have anti-inflammatory properties that reduce cancer risk. Including fatty fish two to three times a week can support overall health and may help maintain hormone balance.

5. Green Tea

Green tea contains polyphenols, which have been shown to slow cancer cell growth in laboratory studies. Drinking two to three cups daily can be a simple, comforting habit with potential protective benefits.

6. Tomatoes

Tomatoes are rich in lycopene, an antioxidant linked to lower cancer risk. Cooking tomatoes, such as in sauces or soups, makes lycopene more easily absorbed by the body.

Small Changes, Big Impact

Incorporating these foods into your daily meals isn’t just about prevention, it’s also about building a sustainable, healthful lifestyle. While diet alone cannot prevent breast cancer, combining these nutritious foods with regular exercise, adequate sleep, and routine medical screenings can strengthen overall health and reduce long-term risk.

Eating with awareness, enjoying colorful fruits and vegetables, and making consistent, balanced choices can empower women to take charge of their health, one meal at a time.

There are many aspects of an organ donation, not just the need for an organ, but also how compatible it is in terms of blood type. The reason why this is important is because of components known as antigens. The recipient's own body can destroy the new organ if the donated organ has different antigens. However, scientists may have found a way to surpass this issue.

A major scientific breakthrough has occurred: scientists successfully changed the blood type of a donated kidney using a special enzyme and then transplanted it into a patient. This is the first procedure of its kind. Right now, a patient can only receive an organ if the donor has a compatible blood type. If the types don't match, the patient's immune system will immediately produce antibodies or immune soldiers to attack and destroy the foreign organ.

How Did The Mismatched Blood Type Transplant Work?

The research team from Canada and China found a special enzyme that can remove the Type A antigens from an organ. Antigens are the markers on blood cells (and organs) that determine blood type. By removing the Type A markers, the enzyme essentially converts Type A blood into Type O blood.

Type O is considered the "universal" donor type because anyone can receive it. In this first test, the converted Type O kidney was transplanted into a 68-year-old patient. Although the kidney eventually showed signs of rejection after two days, it was able to function and produce urine for six days, proving the concept works.

How Does A Universal Kidney Work?

If doctors can successfully change the blood type of a donor organ, the current limits on transplants would largely disappear, creating enormous benefits for patients.

Significantly Increased Access to Organs

Without the need to match blood types, doctors wouldn't have to wait for an organ that is both a good match and the correct blood type. Instead, they could focus only on other factors important for the transplant's long-term success. By removing the blood type obstacle, this technology would allow for faster matching and quicker surgeries, which will dramatically reduce the painfully long waiting lists that patients currently face.

Shorter, More Efficient Wait Lists

Without the restriction of matching blood types, doctors wouldn't have to wait for an organ that is both a good match and the correct blood type. Instead, they could focus on other crucial factors, like matching proteins and tissues that are important for the long-term success of the transplant. By eliminating the blood type hurdle, this technology would allow for faster matching and quicker surgeries, drastically reducing the painfully long wait lists that patients currently face for life-saving organs.

Eliminating Risky Pre-Treatment for Recipients

This new approach of treating the donor organ instead of the patient is a major advancement. Right now, to perform a blood-type-mismatched transplant, the patient has to get intense treatments beforehand to severely weaken their immune system. These treatments are risky because they significantly increase the patient's vulnerability to severe infections.

Furthermore, for deceased donor organs—which must be used very quickly—there simply isn't enough time to safely administer these pre-treatments. By converting the organ outside the body, doctors can avoid this high-risk step for the recipient, making the transplant safer and much more feasible for emergency cases.

What Happens Next

This successful first attempt proves the enzyme-conversion technique works, but it's just the beginning. The scientists now need to conduct more studies on both brain-dead and living patients. Their main goal is to figure out the best way to adjust the treatment so that the converted organ can function successfully for a long period, ultimately allowing this revolutionary technique to be used in hospitals everywhere.

Newborn babies have a lot to learn, they look at new things, react to certain stimuli that can draw a reaction like crying or laughing. But is there more to their reaction than we know? Babies are far more perceptive than we realize. While their ability to remember things may still be developing along with other critical skills, there are some skills they have since the very beginning. A new study has shown that babies are looking and learning for a very long time.

A study from Yale University used advanced brain imaging (MRI) to examine the social perception pathway, the part of the brain that processes important social cues like faces, eye contact (gaze), and speech.

Researchers suspected this pathway might be working early, since newborns already prefer to look at faces. The imaging confirmed this, showing that the connections within this social network were already "quite robust" just a couple of weeks after birth. This suggests that babies' early social preferences are based on this hardwired brain pathway.

What Does Early Brain Activity Indicate?

The researchers closely tracked the development of a group of babies, including some who were already known to have a higher chance of developing Autism Spectrum Disorder (ASD)—for example, because an older sibling had it. By following these infants, the team made a very important discovery that directly connects the brain's wiring at birth to social behavior months later.

Stronger Connection = More Attention

The study found a clear link: Babies born with a "stronger" social brain pathway—meaning the connections within this social processing network were more robust—paid more attention to faces when they were four months old. This suggests that the quality of the brain's initial setup dictates how much a young baby focuses on the most crucial social signals around them, which are faces.

Better Attention = Fewer Difficulties

The findings didn't stop at four months. The researchers discovered that this habit of paying more attention to faces at four months old was, in turn, associated with the children having fewer social challenges or difficulties when they reached 18 months of age. Essentially, getting a good, early start on social focusing seems to put children on a better path for developing social skills as toddlers.

Overall, this research suggests that the way a baby's brain is naturally wired right from the start is what truly creates the foundation for their future social engagement. It implies that fundamental social abilities are not just learned through experience but are initially dependent on the strength of these brain connections present at birth.

How Can This Help With Detecting Autism

The discovery that this social network is active from birth and that its strength is linked to later social skills is especially important for understanding autism. Since paying less attention to faces is a key early sign of ASD, the ability to measure the strength of this brain pathway in newborns could eventually help doctors identify babies at high risk for social difficulties much earlier than current methods allow. The researchers plan to continue this work to better understand the brain processes that drive social behavior in all children and those who may be vulnerable to ASD.