Why Some People Are Immune To Deadly Diseases Over Others?

Updated Mar 1, 2025 | 07:00 PM IST

Summaryhe National Organization for Rare Disorder also notes that it is a genetic autoimmune disorder that is caused by mutations in the COPA gene. This disease affects families unpredictably—some individuals with the mutation develop severe lung damage early in life, while others remain completely healthy.
COPA syndrome

Credits: Canva

For over 15 years, Dr Anthony Shum, a pulmonologist at the University of California, San Francisco has been studying a rare genetic disorder called the COPA Syndrome. It stands for coatomer subunit alpha and is a rare, inherited disorder that affects the lungs, joint, and kidney. The National Organization for Rare Disorder also notes that it is a genetic autoimmune disorder that is caused by mutations in the COPA gene. This disease affects families unpredictably—some individuals with the mutation develop severe lung damage early in life, while others remain completely healthy. Now, Shum’s team has discovered a protective genetic variant that may offer new hope for treatment.

A Breakthrough

Researchers found that some relatives of COPA Syndrome patients stayed healthy despite carrying the same COPA gene mutation that causes the disease. The key difference? These unaffected individuals had a protective version of another gene called HAQ-STING.

When scientists introduced HAQ-STING into diseased lung cells from COPA patients, the cells returned to a balanced state, suggesting that this gene could be used as a therapy.

“We really think HAQ-STING could be a gene therapy tool and a step toward a cure,” said Shum, whose findings were published in the Journal of Experimental Medicine.

Families Who Solved The Mystery

Shum’s journey into COPA Syndrome research began in 2011 when he treated a young woman, Letasha, who had severe lung bleeding. Her mother, Betty Towe, mentioned that Letasha’s sister, Kristina, had suffered from similar symptoms. Over the years, Betty had taken both daughters on a four-hour trip to UCSF for treatment. After tracing their family history, Shum discovered that their distant relatives in Texas and Oakland also had lung problems and arthritis. In 2015, Shum, along with scientists from Baylor College of Medicine and Texas Children’s Hospital identified the COPA gene mutation. They realized that it was the common factor behind the illness. However, only some of the 30 individuals with the mutation actually developed symptoms, leaving a major question unanswered.

The Domino Effect

It was established that it occurs when a mutated COPA gene causes another gene STING to go overdrive. The STING that helps fight infections in COPA patients, remain permanently active, which leads to chronic inflammation that damages the lungs, kidneys, and joints. In 2020, while studying STING’s role in the disease, researchers discovered a key variation: HAQ-STING. This version of STING, present in about one-third of the population, appeared to neutralize the harmful effects of the COPA mutation.

To confirm their theory, the scientists needed both affected and unaffected family members to participate in the testing. Letasha, Kristina and Betty immediately volunteered. The researchers then analyzed DNA samples from 26 COPA patients and their healthy relatives. They also conducted CT scans and blood tests to ensure that unaffected members did not have any hidden symptoms. When the findings were all clear, it was revealed that all the healthy individuals had HAQ-STING, while none of the COPA patients did. This was the first known case of a common gene variant completely protecting against a severe genetic disease.

Encouraged by this discovery, researchers tested HAQ-STING’s effects in a lab setting. They introduced it into diseased lung cells from COPA patients, and the cells returned to normal function.

Way Ahead

Shum believes HAQ-STING could lead to game-changing treatments, including:

  • Prenatal gene therapy for babies diagnosed with COPA Syndrome before birth
  • Aerosol delivery of HAQ-STING for adults, directly targeting the lungs

Before publishing their findings, Shum called Betty with the news—her own HAQ-STING gene had protected her from the disease. He also informed Letasha and Kristina, who were overwhelmed with relief and joy.

“We always believed Dr. Shum would get to the bottom of it,” said Letasha. “This discovery is going to change lives.”

End of Article

Two Year Old Girl Diagnosed With Childhood Dementia

Updated Mar 24, 2026 | 01:02 PM IST

SummaryLeni, 2, diagnosed with Sanfilippo Syndrome Type B, a rare childhood dementia, faces progressive cognitive and physical decline without treatment. Her parents are raising funds, seeking trial access, and urging early screening and investment.
Two Year Old Girl Diagnosed With Childhood Dementia

Credits: GoFundMe

For most parents, the toddler years are filled with first words, wobbly steps and dreams of the future. For Gus and Emily Forrester, those moments are now overshadowed by a diagnosis they describe as “every parent’s worst nightmare.”

Their two-year-old daughter, Leni, has been diagnosed with Sanfilippo Syndrome Type B, a rare genetic condition often referred to as childhood dementia. The disorder, formally known as Mucopolysaccharidosis type III, gradually robs children of their physical and cognitive abilities.

In an interview with ITV News, Leni’s parents spoke about the devastating reality of the condition, which has no approved cure or widely available treatment.

“All your dreams for your child's future are taken away,” her mother, Emily, said. “To be told that she has this condition, and there is no treatment and no cure and no support… it’s completely earth-shattering.”

What Is Childhood Dementia?

Two Year Old Girl Diagnosed With Childhood Dementia

Sanfilippo Syndrome is a neurodegenerative disorder caused by the body’s inability to break down certain complex sugars. Over time, these substances build up in the brain, leading to progressive damage.

According to Cure Sanfilippo Foundation, symptoms usually begin appearing between the ages of one and six. Children may initially show mild developmental delays, but the disease gradually worsens, affecting speech, mobility and behaviour.

As the condition advances, many children lose the ability to talk, walk and recognise loved ones. Life expectancy is often limited to the early teenage years.

Emily explained the process in stark terms. Without treatment, she said, Leni’s body will slowly be overwhelmed by “toxic waste,” causing irreversible damage.

The Urgency of Early Treatment

For families like the Forresters, time is not just precious, it is critical.

“Early treatment is key for these children,” Emily said. “If she has to wait six months, that could mean she can no longer talk. If she waits 12 months, that could mean she loses the ability to walk.”

Although experimental therapies, including gene-based approaches, are being developed, access remains a major hurdle. Some clinical trials are expected to take place in the United States later this year, but Leni is not currently eligible.

Her parents are now campaigning for UK patients to be included in these trials, arguing that promising science already exists but remains out of reach for many families.

A Family's Fight For Hope

In response to the diagnosis, the Forresters have launched a fundraiser to support Leni’s care and potential treatment options. They have also pledged to donate part of the funds to Great Ormond Street Hospital, where Leni is receiving care, and to the Cure Sanfilippo Foundation, which supports affected families.

So far, donations have crossed $250,000, reflecting the growing awareness and concern around rare childhood conditions.

Leni’s father, Gus, said the emotional toll of the diagnosis is hard to put into words. “As parents, your role is to protect your children and provide every opportunity you can. Without any treatment, her future and her reality is very, very dark.”

Beyond fundraising, the couple is also raising awareness about childhood dementia and advocating for newborn screening programmes that could help detect such conditions earlier.

Experts working on experimental therapies say greater government investment is urgently needed. Without it, many children may never benefit from treatments that could slow or alter the course of the disease.

For now, Leni remains a cheerful two-year-old, full of life and affection. But for her parents, every passing day is a reminder of how quickly that could change, and how urgently answers are needed.

End of Article

Is Cough Really Necessary For TB? 80% Of Patients Don't Have It, Says Study

Updated Mar 24, 2026 | 01:37 PM IST

SummaryOn World Tuberculosis Day, experts warned Tuberculosis in India remains high, with many cases lacking persistent cough, delaying diagnosis. New initiatives aim to improve detection, treatment and support elimination efforts by 2025.
Is Cough Really Necessary For TB? 80% Of Patients Don't Have It, Says Study

Every year, March 24 is observed as World Tuberculosis Day to spread awareness about the infectious disease. In India, it remains one of the most pressing infectious diseases. Dr Arup Halder, Consultant Pomologist at CK Birla Hospitals, CMRI says that India still accounts for roughly a quarter to over a quarter of world's tuberculosis or TB cases. "In 2023–2024, India reported around 25–26 lakh TB patients out of an estimated 27 lakh cases, reflecting improved detection but also highlighting a persistently high burden," he points out.

Also Read: Harish Rana Taken Off Food And Water Support For Over 10 Days; Waiting For Passive Euthanasia

While TB incidence has fallen by about 20 per cent since 2015 and mortality has also declined to roughly 21 deaths per lakh population, it still remains well above national elimination targets for 2025.

TB Could Happen Even Without A Persistent Cough

What makes TB so difficult to eliminate? While many associate TB with persistent coughing, studies show that 80 per cent of patients do not show the symptoms of cough that is "presumed" to be a common symptom. This is why, TB could go ignored until it is too late.

A research led by Amsterdam UMC and the Amsterdam Institute for Global Health and Development analyzed data on more than 600,000 individuals in Africa and Asia and found that around 82.8 per cent of those with TB had no persistent cough. The study also found that 62.5 per cent had no cough at all. The findings were published in the Lancet Infectious Diseases.

Also Read: Perez Hilton Spent 21 Days In Hospital After Taking Medication on an Empty Stomach

The study in fact noted that this could be the "probable reason why, despite huge efforts to diagnose and treat the disease, the tb burden across Africa and Asia is hardly declining". Frank Cobelens, Professor of Global Health at Amsterdam UMC and Senior Fellow at the AIGHD says, "A persistent cough is often the entry point for a diagnosis, but if 80 per cent of those with TB do not have one, then it means that a diagnosis will happen later, possibly after the infection has already been transmitted to many others, or not at all."

Another 2019 study published in Elsevier notes: "Coughing does not appear to be a necessary prerequisite for TB transmission." The study further mentions, "Frequency of cough is associated with infectivity but this does not imply mechanistic causality for TB transmission."

Does It Mean Coughing Is Harmless?

The simple answer to this is: No. Coughing does not mean harmless, especially when it is a persistent one. The study only shows that TB does not always mean persistent coughing, however, if one experiences this symptom, they should always get a test done and should not ignore the symptoms.

Researchers from The University of Texas at Dallas' Center for Advanced Pain Studies working with colleagues from UT Southwestern Medical Center note that TB coughing could cause pain. This is one of the way one can distinguish the symptoms. The findings published in journal Cell notes that before this study, "no one had even shown that TB produces an irritant that acts directly on the sensory innervation of the lungs".

Corresponding author Dr Michael Shiloh, associate professor of internal medicine and microbiology at UT Southwestern said, "People with active tuberculosis can cough for months and spread disease even when they are receiving appropriate treatment."

Read: World Tuberculosis Day 2026: Theme, Origin, And Significance

What Is India Doing To Control TB Cases?

On World TB Day, President Droupadi Murmu stressed that TB continues to pose a significant public health challenge and has affected millions of lives across the world. She urged all stakeholders to work together with collective resolve to end TB once for all.

To act on it, Union Health Minister Jagat Prakash Nadda will launch a series of initiatives, including 'TB Mukt Bharat Abhiyaan - 100 Days Campaign', the TB Mukt Bharat App, and the TB Mukt Urban Ward Initiative. These measures are designed to strengthen the case detection, improve treatment adherence, and enhance last-mile delivery of TB services, especially in high-burden areas. The initiatives have also been aligned with the objectives of the National Tuberculosis Elimination Programme.

End of Article

Bacterial Meningitis May Cause Long-term Fatigue, Vision Problems, Raise Suicide Risk: Study

Updated Mar 24, 2026 | 03:00 AM IST

SummaryThe long-term effects of the deadly bacterial meningitis among survivors include fatigue, difficulties with concentration, memory and emotional regulation, persistent headaches, issues with mobility, vision, and hearing.
Bacterial Meningitis May Cause Long-term Fatigue, Vision Problems, Raise Suicide Risk: Study

Credit: Canva

From physical problems like fatigue and vision problems, people who survive the deadly bacterial meningitis are likely to live with long-term fatigue and vision problems, as well as be at high risk of suicide, according to a new study.

The study comes as the UK is experiencing an outbreak of meningitis in Kent, that began among students who visited Club Chemistry in Canterbury between March 5 and 7.

Although bacterial meningitis is treatable, it requires prompt, often immediate treatment for better recovery. Yet patients are likely to face the risk of fatal or long-term complications -- from physical, psychological, and social impacts, said researchers from the University of Otago, The Conversation reported.

The new findings, based on 16 cases from New Zealand, who reportedly suffered the fatal disease, showed that multiple chronic after-effects is permanent in some, while in others, it dragged on for years. The effects include:

  • fatigue,
  • difficulties with concentration,
  • memory and emotional regulation,
  • persistent headaches,
  • issues with mobility, vision, and hearing.
These conditions affected the patients' ability to work, study, and maintain relationships, which further affected their mental health, increasing their vulnerability for

  • anxiety,
  • depression
  • suicidality.

"Our findings demonstrate that bacterial meningitis is much more than a life-threatening infection. It is an acute disease with serious, chronic after-effects which are poorly understood and often go unrecognised," the researchers said.

Kent Meningitis Outbreak

According to the latest update from the UK Health Security Agency (HSA), 20 laboratory cases of meningitis are confirmed, and 9 notifications remain under investigation, bringing the total to 29 in the country.

The bug that causes the infection has been identified as the known strain of meningitis B, and MenB vaccines will be offered to 5,000 students living in the University of Kent halls of residence in Canterbury.

Meanwhile, the UKHSA chief executive, Susan Hopkins, said the outbreak "looks like a super-spreader" event with "ongoing spread" through universities' halls of residence.

"There will have been some parties, particularly around this, so there will have been lots of social mixing. I can't yet say where the initial infection came from, how it's got into this cohort, and why it's created such an explosive amount of infections," she added.

As per Trish Mannes, UKHSA Regional Deputy Director for the South East, even after two doses, the MenB vaccine “does not protect against all strains of meningococcal disease, nor against all infections that can cause meningitis. It also does not prevent the bacteria from being carried and spread in the community”.

The UKHSA thus warned people to be aware of the signs and symptoms of invasive meningococcal disease, and to seek immediate medical attention if they or anyone they know develops these signs and symptoms.

Common symptoms include:

  • rash
  • sudden onset of high fever
  • severe and worsening headache
  • vomiting and diarrhea
  • joint and muscle pain
  • seizures.

End of Article