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Subject: Biotech and Medical Sciences

  • [pib] Nationwide Mass Drug Administration (MDA) Campaign for Lymphatic Filariasis (LF) Elimination 

    Why in the News?

    Union Minister for Health and Family Welfare has launched the Annual Nationwide Mass Drug Administration (MDA) Campaign to eliminate Lymphatic Filariasis (LF).

    About Lymphatic Filariasis (LF):

    • Lymphatic Filariasis (LF), or “Hathi Paon”, is a mosquito-borne parasitic disease caused by Wuchereria bancrofti, Brugia malayi, and Brugia timori.
    • It affects the lymphatic system, leading to swelling of limbs (lymphoedema) and scrotal swelling (hydrocele), causing permanent disability.
    • LF spreads through repeated mosquito bites, making it a major public health challenge in tropical regions, including India.
    • India aims to eliminate LF by 2027, ahead of the 2030 Sustainable Development Goal (SDG) target.

    What is Mass Drug Administration (MDA)?

    • MDA is a large-scale public health campaign where anti-filarial medicines are administered to all eligible individuals in endemic areas to stop LF transmission.
    • Medication Regimens:
      • Double Drug Therapy (DA): Diethylcarbamazine Citrate (DEC) + Albendazole
      • Triple Drug Therapy (IDA): Ivermectin + DEC + Albendazole
    • Key Features of MDA
      • Door-to-door supervised drug administration ensures high coverage.
      • Drugs are safe, free, and given twice a year in targeted districts.
      • MDA is crucial for eliminating LF, as it reduces parasite transmission and protects millions from disability.
    • EXCEPTIONS: Children below 2 years, pregnant women, and seriously ill individuals.

    PYQ:

    [2017] Consider the following statements:

    1. In tropical regions, Zika virus disease is transmitted by the same mosquito that transmits dengue.

    2. Sexual transmission of Zika virus disease is possible.

    Which of the statements given above is/are correct?

    (a) 1 only

    (b) 2 only

    (c) Both 1 and 2

    (d) Neither 1 nor 2

     

  • Genotype D1.1

    Why in the News?

    The US Department of Agriculture has confirmed a new spillover of H5N1 avian flu genotype D1.1 into dairy cattle in the United States.

    What is Genotype D1.1?

    • Genotype D1.1 is a strain of the H5N1 highly pathogenic avian influenza (HPAI) virus, primarily found in poultry and wild birds.
    • It is part of the H5 clade 2.3.4.4b, which has been responsible for multiple outbreaks worldwide.
    • It was recently confirmed in dairy herds in Churchill County, Nevada, USA.
    • Symptoms in Cattle: Includes fever, reduced milk production, coughing, sneezing, and nasal discharge.
    • Differences from B3.13: Genotype B3.13, the previous dominant H5N1 strain in cattle, caused milder infections in humans, whereas D1.1 has led to more severe cases.

    Bird Flu (Avian Influenza) Spillover of H5N1 Virus

    • A spillover event occurs when a virus jumps from its natural host species (wild birds) to other animals or humans.
    • It spreads through wild bird migration routes, carrying the virus across continents.
    • The virus has been detected in unpasteurized milk from infected cows, raising concerns about worker exposure.

    Impacts on India

    • Although genotype D1.1 has not been detected in India, the growing spread of H5N1 in cattle and humans abroad raises concerns for public health and livestock industries in India.
    • India is part of major bird migration routes (Central Asian Flyway & East Asian-Australasian Flyway), making it vulnerable to H5N1 spread from infected wild birds.
    • With India being the world’s largest milk producer, a spillover of H5N1 into dairy cattle could severely impact milk production and exports.
    • While human cases remain rare, a mutation allowing human-to-human transmission could lead to a pandemic-like scenario.
    •  India poultry products exports to Middle Eastern and Asian markets; an H5N1 outbreak could lead to bans and economic losses.

    PYQ:

    [2015] H1N1 virus is sometimes mentioned in the news with reference to which one of the following diseases?

    (a) AIDS

    (b) Bird flu

    (c) Dengue

    (d) Swine flu

     

  • Diagnostic sector requires Regulations

    Why in the News?

    India has around 3,00,000 diagnostic labs, and the number is increasing. However, the sector is largely unregulated, scattered, and concentrated in urban areas.

    What is the significance of India’s Diagnostics Sector?

    • Market Size and Growth: The Indian diagnostics market was valued at approximately US$13 billion in 2023 and is projected to reach US$25 billion by FY28. It is expected to grow at a CAGR of around 14%. Some projections estimate the market could reach US$40 billion by 2034.
    • Essential Component of Healthcare: Diagnostics play a crucial role in disease prevention, early detection, and effective management, making them an essential part of modern healthcare. Doctor recommendations drive a major part of the diagnostic business, with tests being conducted for most patients before prescribing medication.
    • Key Market Segments: The sector is primarily divided into pathology (60%) and radiology (40%). Pathology is further broken down into illness (acute and chronic) and wellness segments.
    • Drivers of Growth: Several factors contribute to the sector’s growth, including increasing life expectancy, a growing middle class, higher penetration of government insurance schemes, rising income levels, and increasing awareness of preventive testing. An aging population and the rise in chronic diseases also fuel the demand for diagnostic services.

    What are the challenges faced by the Diagnostics Sector?

    • Urban-Rural Divide: A significant portion of diagnostics revenue (76%) comes from urban areas, even though 70% of India’s population resides in rural areas.
    • Disparities in Infrastructure: Rural areas have fewer healthcare facilities, with only about 36.5% of the total hospital beds, leading to delayed treatments and poorer health outcomes
    • Regulatory Issues: The Kerala State Clinical Establishments Act faces resistance due to stringent space (300 sq. ft. in rural areas, 500-700 sq. ft. in urban areas) and educational requirements, making compliance unviable for many small labs.
    • Standardization Needs: Lack of uniform testing protocols leads to errors. Example: A government lab in Karnataka reported a platelet count of 0.47 lakh/cmm, but a private lab retest showed 2.2 lakh/cmm, highlighting the need for mandatory NABL accreditation and standard SOPs to ensure diagnostic accuracy.
    • Infrastructure Gaps in Public Sector: Lack of essential upgrades in government labs (e.g., Osmania and Gandhi Hospitals in Hyderabad). Limited operational hours and unavailability of specialists in government hospitals force patients to private facilities.

    What are the present Regulations implemented by the govt for this Sector?

    • Clinical Establishments Act, 2010: This act aims to regulate diagnostic centers but has been adopted by only 12 states and Union Territories, leading to inconsistent regulations across the country.  
    • Medical Devices Rules, 2017: These rules govern medical devices, an integral part of the diagnostics framework, focusing on manufacturing, import, sale, distribution, and quality and safety control. They provide risk-based categorization, establish product standards, and set timelines for obtaining licenses.
    • State-Specific Regulations: Some states like Karnataka and Kerala have separate regulatory frameworks, but enforcement remains inconsistent. Tamil Nadu’s Clinical Establishments (Regulations) Rules, 2018, mandate minimum space requirements for labs.
    • Pricing Regulations for Government-Led Diagnostic Schemes: Limits test costs to reduce out-of-pocket expenses for patients. Example: Telangana’s T-Diagnostics Programme has conducted 18.10 crore tests at subsidized rates, saving ₹1,100 crore for patients.
    • Mandatory Quality Control & External Audits: Enforces periodic inspections to maintain test accuracy. Example: Karnataka’s KPME Act mandates SOPs for sample collection, testing, and reporting, with penalties for non-compliance.

     

    Way forward: 

    • Expand Rural Diagnostic Infrastructure: Strengthen public-private partnerships (PPPs) to enhance diagnostic services in rural areas, improve affordability, and ensure equitable access through mobile labs and telemedicine integration.
    • Enforce Uniform Regulatory Standards: Implement a nationwide mandatory NABL accreditation and standard operating procedures (SOPs) for all diagnostic centers to ensure quality, accuracy, and compliance across states.

    Mains PYQ:

    Q What do you understand by nanotechnology and how is it helping in health sector? (UPSC IAS/2020)

  • What is Brucellosis?

    Why in the News?

    An 8-year-old girl in Kerala, recently succumbed to brucellosis, a bacterial infection primarily caused by the consumption of unpasteurised milk.

    About Brucellosis

    • Brucellosis is a bacterial infection caused by Brucella species, primarily affecting cattle, goats, sheep, swine, and dogs.
    • Humans contract it through direct contact with infected animals, consuming contaminated animal products, or inhaling airborne agents.
    • According to the World Health Organization (WHO), the most common cause is the ingestion of unpasteurised milk or cheese from infected livestock.
    • Symptoms and Risk Factors:
      • Symptoms: Fever, weakness, weight loss, and general discomfort. The incubation period is 1-2 months, but most cases develop within 2-4 weeks.
      • At-Risk Groups: Farmers, butchers, veterinarians, hunters, and laboratory personnel handling infected animal tissues.
    • Treatment and Prevention:
      • Treatment: Doxycycline (100 mg, twice daily for 45 days) and Streptomycin (1 g daily for 15 days) as per medical advice.
      • Prevention: Vaccination of livestock, pasteurisation of milk, and public awareness campaigns to discourage the consumption of unpasteurised dairy products.
  • The financial toxicity of cancer care in India

    Why in the News?

    The financial strain of cancer is often ignored but can be the most harmful. It not only impacts the patient but also their family and future generations.

    What is the extent of financial toxicity faced by cancer patients in India?

    • High Treatment Costs: Cancer treatments, especially advanced options like immunotherapy, can be prohibitively expensive. For instance, a patient with oral cancer may face annual costs of approximately ₹10 lakh, adding to previous expenses that can total ₹25 lakh over several years. This financial strain often forces families to deplete savings or sell assets to afford care.
    • Impact on Families: Financial toxicity extends beyond the patient to their families, leading to severe economic consequences. Families may resort to selling properties or skipping meals to manage treatment costs, which can entrap them in a cycle of generational poverty.
    • Out-of-Pocket Expenses: A significant portion of healthcare costs is borne out-of-pocket by patients. For example, outpatient expenses can account for nearly 50% of total healthcare costs, which are not covered by insurance schemes like Ayushman Bharat.

    What are the contributing factors to financial toxicity in cancer care?

    • Inadequate Public Health Funding: India’s public health expenditure has historically been below 2% of GDP, resulting in insufficient healthcare infrastructure and personnel in public hospitals. This leads to delays in diagnosis and treatment, particularly for advanced cancer cases that require more costly interventions.
    • Limited Insurance Coverage: Existing insurance schemes primarily cover inpatient costs, leaving patients responsible for outpatient diagnostics and follow-up treatments. This gap significantly contributes to the financial burden on patients and their families.
    • Economic Disparities: Patients from low and middle-income backgrounds face additional hurdles in accessing cutting-edge treatments due to their high costs and limited availability in public health systems.

    What are the steps taken by the Indian Government? 

    • Health Minister’s Cancer Patient Fund (HMCPF): Established in 2009 under the Rashtriya Arogya Nidhi, this fund provides financial assistance up to ₹5 lakh for cancer treatment at designated Regional Cancer Centers (RCCs).
      • In emergency cases, assistance can go up to ₹15 lakh. The fund aims to support patients living below the poverty line.
    • Ayushman Bharat – Pradhan Mantri Jan Arogya Yojana (PM-JAY): This scheme offers health coverage of up to ₹5 lakh per family per year for secondary and tertiary care hospitalization, including cancer treatments. It is designed for low-income families and is operational across India.
    • State-Specific Schemes: Various states have their own initiatives:
      • Arogyasri Scheme in Andhra Pradesh: Provides free cancer treatment for families with an annual income below ₹5 lakh.
      • Free Chemotherapy in Odisha: Offers free chemotherapy treatment at district hospitals for poor cancer patients.
      • Financial Assistance in Punjab: Up to ₹1.5 lakh is provided for cancer treatment to eligible residents.

    What strategies can be implemented to mitigate financial toxicity? (Way forward)

    • Strengthening Public Healthcare: Increasing government investment in public health could improve access to affordable cancer care.
      • States like Delhi and Kerala have initiated schemes to support direct medical costs, but broader implementation is needed across India.
    • Supportive Measures for Non-Medical Costs: Initiatives such as discounted travel fares for cancer patients can alleviate some financial burdens associated with non-medical expenses. Expanding these programs could provide significant relief.
    • Role of Nonprofits and CSR: Nonprofit organizations play a crucial role in reducing out-of-pocket expenses through various support services. Increased funding from corporate social responsibility (CSR) initiatives could help these organisations expand their reach and impact.
    • Promoting Philanthropy: Encouraging individual philanthropy among wealthier segments of society could provide critical funding for cancer care initiatives and nonprofits focused on assisting low-income patients.
    • Policy Advocacy: Advocating for policies that address the gaps in insurance coverage and promote equitable access to cancer treatments is essential for reducing financial toxicity in the long term.

    Mains PYQ:

    Q What are the research and developmental achievements in applied biotechnology? How will these achievements help to uplift the poorer sections of the society? (UPSC IAS/2021)

  • [pib] GARBH-Ini-DRISHTI: India’s First Ferret Research Facility

    Why in the News?

    India’s first Ferret Research Facility, GARBH-Ini-DRISHTI, was inaugurated at Translational Health Science and Technology Institute (THSTI) in Faridabad to boost vaccine development and infectious disease research.

    About GARBH-INi-DRISHTI

    • GARBH-INi-DRISHTI is a data repository and information-sharing hub designed to provide comprehensive clinical and biological insights into maternal and child health.
    • Developed under the GARBH-INi program, it is one of South Asia’s largest pregnancy cohort datasets, offering access to clinical data, medical images, and bio-specimens.
    • The platform includes data from over 12,000 pregnant women, newborns, and postpartum mothers, enabling extensive research into maternal and neonatal health outcomes.
    • It is a collaborative initiative, involving India’s top research institutions and hospitals, ensuring scientific synergy in maternal healthcare.
    • Aims:
      • To enhance maternal and neonatal healthcare research through large-scale data accessibility.
      • To support global researchers in conducting transformative studies that can improve birth outcomes.
      • To provide early insights into pregnancy-related complications, fostering better diagnostic and preventive measures.
      • To develop predictive tools for conditions like preterm birth, ensuring better maternal health interventions.
    • Features:
      • Comprehensive Data Repository: Houses clinical, imaging, and bio-specimen data from thousands of pregnant women and newborns.
      • Advanced Data Access: Researchers can explore detailed datasets to study pregnancy outcomes, foetal health, and postnatal development.
      • Secure and Controlled Access:  Provides clear guidance on data usage and approvals, ensuring ethical research practices.
      • Global Research Platform: Enables nationwide and international collaboration, allowing researchers to work on common healthcare challenges.
      • Supports Policy and Decision-Making:  The data can be leveraged to shape maternal health policies, improve diagnostic protocols, and design effective interventions.
  • Organophosphate Poisoning in J&K

    Why in the News?

    A mysterious illness in Jammu & Kashmir has caused 17 deaths, with doctors suspecting organophosphate poisoning from pesticides as the possible cause.

    What are Organophosphates?

    • Organophosphates (OPs) are a class of chemical compounds primarily used as pesticides and insecticides in agriculture.
    • They work by disrupting the nervous system by inhibiting the enzyme acetylcholinesterase (AChE), leading to excessive nerve stimulation.
    • It is commonly used in agriculture, household pest control, and chemical warfare agents (e.g., nerve gases like Sarin).
    • It is found in pesticides such as malathion, chlorpyrifos, and diazinon.
    • Effects of OP poisoning:
      • Acute Symptoms: Excessive sweating, nausea, vomiting, diarrhea, muscle twitching, breathing difficulty, seizures, and coma.
      • Chronic Effects: Neurological disorders, memory loss, muscle weakness, and reproductive toxicity.

    Treatment for Organophosphate Poisoning

    • Organophosphate poisoning requires immediate medical attention to prevent fatal complications.
      • Decontamination: Remove contaminated clothing, wash exposed skin, and use activated charcoal if ingested.
    • Medical Treatment:
      • Atropine: Blocks excess nerve stimulation.
      • Pralidoxime (2-PAM): Restores enzyme function.
      • Oxygen therapy and ventilator support if needed.
      • Supportive Care: IV fluids, anti-seizure medications, and hospitalization in severe cases.
  • What is Guillain-Barre Syndrome (GBS)?

    Why in the News?

    In an alarming move, the Guillain-Barre Syndrome (GBS) cases rise to 110 in Pune.

    What is Guillain-Barré Syndrome (GBS)?

    • GBS is an autoimmune disorder where the immune system attacks peripheral nerves, causing muscle weakness and, in severe cases, paralysis.
    • It is rare, affecting 1–2 per 100,000 people annually.
    • It is more common in adults and males.
    • It is often triggered by viral or bacterial infections, especially Campylobacter jejuni (a cause of gastroenteritis), influenza, Epstein-Barr virus, Zika virus, or, in rare cases, vaccinations.
    • Its Symptoms: 
      • Early signs: Tingling, weakness in legs spreading to the upper body, pins-and-needles sensation, back pain.
      • Severe cases: Paralysis, breathing difficulties, loss of speech, vision problems.
      • Complications: Can affect the autonomic nervous system, leading to irregular heartbeat, blood pressure fluctuations, and potential respiratory failure.

    Treatment and Recovery:

    • No definitive cure, but treatments include:
      • Plasma Exchange (Plasmapheresis): Removes harmful antibodies attacking nerves.
      • Intravenous Immunoglobulin (IVIG) Therapy: Injects healthy antibodies to counteract immune attacks.
    • Supportive care: Some patients require ventilator support, physical therapy, and months to years of rehabilitation.

    PYQ:

    [2022] In the context of vaccines manufactured to prevent COVID-19 pandemic, consider the following statements:

    1. The Serum Institute of India produced COVID-19 vaccine named Covishield using mRNA platform.
    2. Sputnik V vaccine is manufactured using vector-based platform.
    3. COVAXIN is an inactivated pathogen-based vaccine.

    Which of the statements given above are correct?

    (a) 1 and 2 only
    (b) 2 and 3 only
    (c) 1 and 3 only
    (d) 1, 2 and 3

  • [28th January 2025] The Hindu Op-ed: Getting drunk, on homoeopathy

    PYQ Relevance:

    Q.) “Besides being a moral imperative of a Welfare State, primary health structure is a necessary precondition for sustainable development.” Analyse. (CS Mains  2021)

    Q.) Appropriate local community-level healthcare intervention is a prerequisite to achieving ‘Health for All’ in India. Explain. (CS Mains 2018)

     

    Mentor’s Comment: UPSC Mains has always focused on traditional knowledge of medicine (2019) and the health sector (2020).

    A recent Supreme Court ruling in the case of Bhagwati Medical Hall vs Central Drugs Standard Control Organization & Ors. has highlighted the difficult challenge faced by state governments in controlling the public health risk caused by alcoholic tinctures sold as homoeopathic remedies in India. Despite the Union Government’s efforts to address the issue, the strong influence of the homoeopathic industry has often led to legal battles that prevent real progress.

    Today’s editorial discusses the difficult challenge state governments face in managing the health risks from alcoholic tinctures sold as homoeopathic medicines in India. This information can be useful for supporting your argument in GS Paper 1 and 2 answers.

    _

    Let’s learn!

    Why in the News?

    Alcoholic tinctures sold as homoeopathic remedies in India pose a serious risk to public health.

     

    What are the recent changes in homoeopathic tinctures? 

    • Introduction of Rule 106B: Limits alcohol content in homoeopathic tinctures to 12% and restricts retail sale to 30 ml bottles, with larger bottles (up to 100 ml) allowed only for hospitals.
    • Taxation Post-GST: Alcohol for medicinal purposes is taxed at 18%, significantly lower than State taxes on alcoholic beverages, making tinctures a cheaper alternative.
    • Supreme Court’s Intervention: In the Bhagwati Medical Hall case, the SC upheld that only the Union government can regulate homoeopathic tinctures, emphasizing stricter enforcement to address public health risks.

    What are the implications of the recent regulatory changes in homoeopathy?

    • Regulatory Complexity and Taxation Issues: The regulatory architecture for homoeopathic alcoholic tinctures is highly complex, with overlapping jurisdictions between the Union and States.
      • Post-GST, alcohol for medicinal purposes is taxed at 18%, significantly lower than State taxes on alcoholic beverages, making homoeopathic tinctures a cheaper alternative for consumers.
      • States cannot regulate these tinctures without presidential assent, leading to a lack of quality control and public health oversight.
    • Public Health Hazards: Homoeopathic tinctures containing 12% alcohol are often consumed as substitutes for alcoholic beverages, leading to alcohol-related illnesses such as alcoholic hepatitis.
      • For example: States like Gujarat and Bihar, where alcohol is prohibited, have reported deaths due to the consumption of spurious homoeopathic tinctures..
    • Industry Lawfare and Regulatory Delays: The homoeopathic industry has consistently challenged regulations, such as Rule 106B of the Drugs and Cosmetics Rules, 1945, through prolonged litigation.
      • The Union government’s decision to pursue litigation instead of laying Rule 106B before Parliament has further delayed regulatory enforcement.

    How does the public perception of homoeopathy impact healthcare choices?

    • Misleading Perception of Safety: Many consumers perceive homoeopathic remedies as safe and natural, unaware of the high alcohol content in tinctures.
      • This perception leads to the misuse of homoeopathic tinctures as substitutes for alcoholic beverages, especially in prohibition States like Bihar and Gujarat.
    • Lack of Awareness: Poorly informed consumers may consume homoeopathic tinctures daily, believing they are curing ailments, while unknowingly risking alcohol-related diseases.
      • The absence of clear labelling and warnings exacerbates the problem, as consumers are not fully aware of the health risks associated with these products.
    • Impact on Healthcare Choices: The availability of cheap, alcohol-based homoeopathic tinctures influences healthcare choices, particularly among low-income groups seeking affordable alternatives to conventional medicine.
      • This reliance on homoeopathy can delay or prevent access to evidence-based medical treatments, worsening health outcomes.

    What role should evidence-based research play in validating homoeopathic practices? (Way forward)

    • Need for Regulatory Reforms: Research should inform regulatory decisions, such as whether alcohol should be permitted in homoeopathic and ayurvedic products.
      • Countries like the U.S. and U.K. are considering cancer warnings on alcoholic beverages, highlighting the need for similar scrutiny of alcohol-based medicinal products in India.
    • Public Health Policy: Evidence-based research can guide public health policies, ensuring that regulations prioritize consumer safety over industry interests.
      • Research should also address the misuse of homoeopathic tinctures as substitutes for alcoholic beverages, particularly in prohibition States.
  • What is Stargardt Disease?

    Why in the News?

    Researchers have created a gene-editing tool to fix ABCA4 gene mutations, offering hope for treating Stargardt disease, a rare condition that causes progressive vision loss.

    What is Stargardt Disease?

    • Stargardt Disease is a rare inherited eye disorder that causes progressive vision loss, primarily affecting the central part of the retina, called the macula.
    • It is typically caused by mutations in the ABCA4 gene, which disrupts the body’s ability to use Vitamin A, leading to an excessive buildup of lipofuscin (yellowish-brown pigment) in retinal cells.
    • The disease commonly begins in childhood or early adulthood and is usually bilateral, involving both eyes.
    • Currently, there is no cure for Stargardt Disease.

    Symptoms of Stargardt Disease

    • Progressive vision loss, particularly affecting central vision.
    • Difficulty seeing in low light (night blindness).
    • Blurred or distorted vision, with colors appearing less vivid.
    • Appearance of dark spots or areas of vision loss in the central visual field.
    • Gradual deterioration of visual acuity, leading to potential legal blindness.

    Present Scenario in India

    • According to a 2023 study by L.V. Prasad Eye Institute, Hyderabad:
      • The disease predominantly affects males and typically manifests during the second decade of life.
      • Estimated prevalence: 1 in 8,000 to 10,000 individuals.
      • 10.79% of patients had a family history of Stargardt disease, while 10.69% were from consanguineous marriages.
    • In India, Stargardt disease is a not uncommon hereditary condition, with limited treatment options available.