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.”

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Your Laptop Could Be Changing Your Neck's Shape: What Hours Of Looking Down Are Doing To Your Spine?

Updated Aug 23, 2026 | 03:00 PM IST

SummaryProlonged laptop use and looking down can strain the neck, alter posture and place extra stress on the spine, potentially causing pain and stiffness over time.
Your Laptop Could Be Changing Your Neck's Shape: What Hours Of Looking Down Are Doing To Your Spine?

Credit: AI

For people who work, laptops and computers are something we use every day. Sitting in front of a screen for hours can be bad for your neck and spine. When you sit and use your laptop the way you position yourself can hurt your neck over time.

This is true even when you are just scrolling on your phone. Keeping your head bent for a long time can put stress on the muscles and joints in your neck.

How Looking Down At Screens Strains Your Neck

The problem is not the laptop itself but how we use it. Many people spend hours looking down at a screen without realizing it. This can cause muscle fatigue, stiffness, headaches and neck pain that will not go away.

Your neck is meant to support your head and let you move it around. When you keep your head tilted forward for hours the muscles in your neck have to work hard to keep it that way. Over time this can cause discomfort. Make it harder to move your neck.

If you sit with posture it can also affect the normal curve of your neck. Poor posture may not cause spinal problems on its own but it can cause wear and discomfort. This is especially true for people who already have neck or spine problems.

Also read: The Hidden Health Risk of Sitting for Long Hours: What Young Professionals Need to Know

Small Workspace Changes Can Reduce Neck Strain

One simple way to reduce strain on your neck is to make your workspace more comfortable. Your laptop or monitor should be at eye level so you do not have to look down all the time. Your back should be. Your arms should be comfortable too. Keep your feet flat on the floor. Do not sit still for too long.

It is also important to move regularly. Of sitting for hours get up and move every 30-40 minutes. Stand up walk around and move your neck and shoulders gently. This can help prevent stiffness and reduce strain on your neck. Your neck is meant to move not be stuck in one position for hours.

When Neck Pain Should Not Be Ignored?

If your neck is stiff after a day, it may feel better with rest and better posture. If the pain gets worse or does not go away, you should see a doctor. If you have pain in your arm or if your arm feels numb tingling or weak you should see a doctor too.

To protect your neck, you do not have to make changes. Just make small adjustments to how you sit and use your laptop and move around more during the day. This can make using your laptop more comfortable. Reduce strain, on your neck and spine.

By Dr. Zahir Abbas Merchant, Consultant Spine Surgeon, Saifee Hospital, Mumbai

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Delhi Swine Flu Outbreak: Amid Sharp Rise In Cases, Health Officials Issue Advisory To Stay Safe

Updated Aug 23, 2026 | 01:00 PM IST

SummaryWith rising cases of swine flu in Delhi, health authorities have recently issued an advisory regarding common symptoms and prevention tips.
H1N1 Cases Are Rising In Delhi: How To Recognise Swine Flu & Prevent Infection?

Credit: AI

Delhi has issued a public health advisory amid a sharp rise in H1N1, commonly known as swine flu, cases. Health authorities urging residents to follow respiratory hygiene, avoid crowded places and seek medical advice if flu-like symptoms develop.

The national capital has reported more than 1,777 H1N1 cases so far this year, including 114 new infections recorded on August 20 alone, according to the latest health department data. Overall, Delhi has reported more than 2,300 Influenza-A cases in 2026.

The sudden surge has prompted the Centre and Delhi authorities to step up surveillance and hospital preparedness. Health officials have also stressed that people should not panic but take necessary precautions to avoid getting sick.

Delhi Sees A Sharp Rise In H1N1 Cases

According to health department, Delhi had recorded 2,392 Influenza-A cases by August 21, of which 1,777 were H1N1. The tally also included H1 and H3 infections and other Influenza-A strains.

The current number is significantly higher than the corresponding period last year. Public health experts have also described some of the H1N1 cases being seen this season as relatively severe.

Dr Chandrakant Lahariya, a public health expert, said H1N1 is not a new subtype and has been known for years, but the current surge needs to be taken seriously.

Also read: Delhi H1N1 Cases Rise To 1,777: Patients Reporting Diarrhea, Muscle Pain, Drop In Oxygen Levels, Say Doctors

Humid Weather Could Be A Major Factor

Doctors have linked the increase to the seasonal pattern of respiratory infections during the monsoon, when humidity, changing temperatures and increased indoor contact can facilitate the spread of respiratory viruses.

Dr Neetu Jain, senior consultant in pulmonary, critical care and sleep medicine at PSRI Hospital, told PTI, H1N1 cases are particularly high in Delhi-NCR this year.”

She also said the number of cases was reported to be around six times higher than previous years and noted that high temperatures and humidity may contribute to the increase in flu and other viral infections.

Common Symptoms

H1N1 infection can mimic other viral respiratory illnesses. Common symptoms include:

  • Fever
  • Cough
  • Sore throat
  • Runny or blocked nose
  • Headache
  • Body aches
  • Chills
  • Fatigue and weakness

Some people recover without complications, but influenza can become serious, particularly in young children, older adults, pregnant women and people with weak immune systems.

Difficulty in breathing, chest pain, drowsiness, low blood pressure, bluish discolouration or worsening of an existing medical condition are among warning signs that need urgent medical attention.

Also read: Human H1N2v Swine Flu Case Detected In China: Should You Worry?

Doctors Advise Against Self-Medication

With flu cases rising, doctors are also urging people not to assume that every fever or cough is H1N1 and start medicines without medical advice.

Dr Jain described H1N1 as a “fairly treatable illness”, while noting that it can become serious in vulnerable people. Antiviral medicines may be prescribed in appropriate cases, along with supportive treatment.

The Delhi government's advisory recommends several basic measures to reduce transmission. People are being urged to wear masks in crowded places, cover their mouth and nose while coughing or sneezing, wash their hands frequently and avoid close contact with people showing respiratory symptoms.

Residents have also been advised not to touch their eyes, nose or mouth unnecessarily and to avoid spitting in public places.

People who develop flu-like symptoms should stay away from others where possible and seek medical advice, particularly if symptoms become severe.

Strenghtening Healthcare System

Authorities have also increased monitoring across the healthcare system. Thirty-five hospitals are under special surveillance, while referral laboratories at AIIMS and the National Centre for Disease Control (NCDC) are available for testing and confirmation.

Hospitals and district health authorities have been asked to strengthen monitoring of influenza-like illness, severe respiratory infections and COVID-19.

Union Health Minister JP Nadda has also reviewed Delhi's preparedness amid the rise in H1N1 cases, with authorities instructed to focus on surveillance, early detection and timely treatment.

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What Happens When Kidney Function Declines: Understanding The Stages Of Chronic Kidney Disease

Updated Aug 23, 2026 | 09:05 AM IST

SummaryChronic kidney disease progresses through five stages as kidney function declines, with early stages often silent and advanced disease potentially requiring dialysis or transplantation.
What Happens When Kidney Function Declines: Understanding The Stages Of Chronic Kidney Disease

Credit: AI

Chronic kidney disease is a disease whereby the patient's kidneys progressively lose their capacity to filter wastes and excessive fluids from the blood stream.

Since kidney damage develops slowly, many individuals might not experience any signs in the early stages of the disease. It is therefore critical for individuals to know about the stages of CKD in order to appreciate the significance of kidney monitoring and timely medical intervention.

Stage 1: Mild Kidney Damage

At stage 1, patients' kidney functions will be relatively normal (eGFR level of 90 or more). However, there will be some indication of kidney damage for example presence of protein in urine. Individuals usually show no symptoms. Controlling diseases like diabetes and high blood pressure can delay progression of CKD.

Stage 2: Mild Loss of Function

This CKD stage is indicated by an eGFR level of 60 – 89 as well as kidney damage. There will probably be no symptoms or very mild symptoms at this stage.

Also read: US CDC Says COVID ‘Growing’ In Nearly Every State: What You Should Know

Stage 3: Moderate Loss of Kidney Function

This stage reflects the moderate loss of kidney function and features an eGFR ranging from 30-59. It normally involves two sub-stages that can be either 3a or 3b. Some of the symptoms of kidney failure can be fatigue, swelling of legs or ankles, changes in urination, or hypertension.

Stage 4: Loss of Kidney Function Is Severe

The fourth stage means that there is a severe loss of kidney functionality, which can be measured by eGFR of 15-29. It normally entails such symptoms as vomiting, swelling, tiredness, or changes in appetite. Health specialists discuss the possibilities of treatment of end-stage kidney disease with their clients and prepare them for getting a new kidney.

Also read: US Woman Paralyzed After Potassium Mistakenly Given During Knee Replacement Surgery

Stage 5: Kidney Failure

Stage 5 is indicated by eGFR being below 15 or the inability of kidneys to perform their functions properly. Waste products and extra fluids can accumulate in the blood and cause life-threatening conditions. Depending on the condition of a patient, the treatments may include dialysis, kidney transplantation, or supportive therapy.

Maintaining Good Kidney Function

The progression of CKD may not always be swift and early detection can make all the difference. The management of blood pressure and sugar, heeding medical advice, living a healthy lifestyle and regular medical check-ups can help preserve kidney functions. If anyone experiences consistent swelling, alteration in urinary habits or feels unusually tired among other symptoms, they should visit a Nephrologist.

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