5 October 2026
The Nobel Assembly at Karolinska Institutet awarded the 2026 Nobel Prize in Physiology or Medicine jointly to Karl Deisseroth, Peter Hegemann and Georg Nagel.
The citation is "for their discoveries concerning light-gated ion channels and optogenetics".
Deisseroth works at the Howard Hughes Medical Institute and Stanford University in the United States.
Hegemann is at Humboldt University of Berlin and Nagel at the University of Wurzburg, both in Germany.
Hegemann and Nagel discovered channelrhodopsin, a protein in a single-celled alga; Deisseroth turned it into a light-controlled switch for nerve cells.
Optogenetics allows researchers to show how nerve cells shape memories, feelings and behaviour in the living brain.
Laureates:
Karl Deisseroth, Peter Hegemann, Georg Nagel
Awarding body:
Nobel Assembly at Karolinska Institutet
Protein discovered:
Channelrhodopsin
Why it matters for exams: The medicine Nobel, the institution that awards it and the technique named in the citation are standard general science questions.
Kerala PSCUPSC
In plain words
Optogenetics Optogenetics — A method that uses light to switch selected nerve cells on or off in a living animal.
Channelrhodopsin Channelrhodopsin — A light-gated ion channel protein first found in a single-celled alga.
5 October 2026
A laboratory technician at the Irkutsk anti-plague research institute in Siberia died on 2 October. Her death was attributed to pneumonia of unknown aetiology, and about 200 contacts were placed under medical observation. The case is being treated as a suspected pneumonic plague; Russian authorities have not confirmed a plague outbreak, and the consumer protection agency Rospotrebnadzor said expanded sample testing found no microorganisms associated with her work. The European Commission said it is monitoring "very closely" and is using the WHO to get updates. The WHO said, based on unofficial information, that the public health risk to the general population appears to be low. Pneumonic plague is caused by Yersinia pestis and responds to antibiotics if caught early.
Contacts under observation:
200
Date of death:
2 October
Pathogen:
Yersinia pestis
Why it matters for exams: Disease surveillance: pneumonic plague and how WHO and regional bodies respond to a suspected outbreak.
Kerala PSCUPSC
In plain words
Pneumonic plague Pneumonic plague — A fast-moving lung infection caused by Yersinia pestis that spreads through respiratory droplets.
5 October 2026
The Food Safety Department ran a statewide special drive called 'Operation Thelima' to stop reuse of used cooking oil in local snacks and other food items.
In Thiruvananthapuram district, 14 special squads inspected 167 establishments over two days.
They found and destroyed 41 litres of unusable oil kept for cooking.
Action was taken to close seven establishments found violating rules.
Other violations included having no food safety licence or registration, no medical fitness certificates, unsafe water and unhygienic storage.
The Assistant Commissioner of Food Safety, Thiruvananthapuram, said inspections will continue.
Establishments inspected:
167
Special squads:
14
Oil destroyed:
41 litres
Closure action:
7 establishments
Why it matters for exams: Enforcement drives by State departments and their names are common current affairs questions.
Kerala PSC
5 October 2026
Health and Devaswom Minister K Muraleedharan will inaugurate the State-level observance of the World Mental Health awareness month on 9 October at 11.45 am.
The venue is the Diamond Jubilee Auditorium of Thiruvananthapuram Medical College.
The event is organised by the Kerala State Mental Health Authority with the Psychiatry Department of Thiruvananthapuram Government Medical College.
The Authority's official logo will also be released at the function.
State-level launch:
9 October, 11.45 am
Venue:
Diamond Jubilee Auditorium, Thiruvananthapuram Medical College
Why it matters for exams: Statutory health bodies of the State and their launches are useful for Kerala PSC current affairs.
Kerala PSCUPSC
5 October 2026
An article published on 5 October 2026 in BMJ Public Health uses data from 28 Asia-Pacific countries on antimicrobial resistance (AMR) action plans.
Of the 28 countries, 27 had endorsed at least one multisectoral AMR action plan.
Second-generation plans were twice as likely to be costed as first plans (67% versus 33%).
Nearly half (49%) of the 27 countries with AMR plans are not costed at all; 44% of plans are fully costed and another 7% partially costed.
Only eight countries reported that AMR activities are funded entirely from domestic sources.
The findings are the first regional summary of progress against the 2024 UN General Assembly Political Declaration on AMR.
Countries with data:
28 Asia-Pacific countries
Countries with at least one AMR plan:
27
Plans not costed at all:
49%
Costed: second vs first plans:
67% versus 33%
Why it matters for exams: Antimicrobial resistance is a leading global health topic, and UN declarations and WHO findings on it feature in health and international-affairs questions.
Kerala PSCUPSC
In plain words
AMR Antimicrobial resistance — When bacteria and other organisms evolve to resist the medicines used to treat infections.
5 October 2026
WHO is joining Pacific leaders, governments and partners at Pre-COP31 in Fiji from 5 to 8 October 2026.
The 31st Conference of the Parties (COP31) to the UNFCCC will be held next month in Antalya, Türkiye.
Health is one of the 10 priority themes of the COP31 Action Agenda, "Dynamic and Resilient Health Systems".
A dedicated Health Day will take place on 9 November, the first day of COP31.
A review of 76 hospitals in 14 Pacific island countries found 62% of health facilities are within 500 metres of the sea or a river.
Pre-COP31:
Fiji, 5 to 8 October 2026
COP31 venue:
Antalya, Türkiye
Health Day:
9 November, first day of COP31
Facilities within 500 m of sea or river:
62% (76 hospitals, 14 Pacific island countries)
Why it matters for exams: Climate conferences, their host cities and their themes are recurring questions in environment and international-affairs papers.
Kerala PSCUPSC
In plain words
UNFCCC United Nations Framework Convention on Climate Change — The UN treaty under which the annual COP climate conferences are held.
COP Conference of the Parties — The UNFCCC's decision-making body, in which member countries meet each year.
5 October 2026
The Nobel Assembly at Karolinska Institutet awarded the 2026 Nobel Prize in Physiology or Medicine jointly to Karl Deisseroth, Peter Hegemann and Georg Nagel.
The citation reads "for their discoveries concerning light-gated ion channels and optogenetics".
Hegemann and Nagel discovered channelrhodopsin, an algal protein, in the single-celled alga Chlamydomonas.
Deisseroth introduced the gene for channelrhodopsin into rat nerve cells and triggered a nerve signal with blue light; he published this in 2005.
Two years later he made the light-controlled switch work in the brains of living mice.
Deisseroth is at the Howard Hughes Medical Institute and Stanford University, USA; Hegemann at Humboldt University of Berlin and Nagel at the University of Würzburg, both in Germany.
Announced:
5 October 2026
Laureates:
Karl Deisseroth, Peter Hegemann, Georg Nagel
Prize share:
1/3 each
Discovery:
Channelrhodopsin and optogenetics
Why it matters for exams: Nobel laureates, their fields and citations are a standing question in every current-affairs paper.
Kerala PSCUPSC
In plain words
Optogenetics Light-controlled gene-based neuroscience method — A method that makes it possible to show how nerve cells shape memories, feelings and behaviours in the living brain.
Channelrhodopsin Light-gated algal ion channel protein — An algal protein that opens a channel when lit by blue light, letting charged ions into the cell.
5 October 2026
A study at the Institute of Teaching and Research in Ayurveda (ITRA), Jamnagar, looked at about 38 children aged 6 to 14 years over 8 weeks.
The group on medicine alone showed about 38 per cent improvement.
The group that combined medicine with yoga showed about 70 per cent improvement.
Memory improved by about 61 per cent in the combined group, with irritability down about 66 per cent and hyperactivity down about 71 per cent.
The findings were published in the AYU journal; the Ministry of Ayush released them on 5 October. This is a small study, not clinical advice.
Children studied:
About 38, aged 6-14 years
Duration:
8 weeks
Medicine only:
About 38 per cent improvement
Medicine plus yoga:
About 70 per cent improvement
Why it matters for exams: AYUSH research institutes and evidence for traditional medicine appear in Health and Science & Technology current affairs.
Kerala PSCUPSC
In plain words
ITRA Institute of Teaching and Research in Ayurveda — The Ministry of Ayush institute at Jamnagar that conducted the study.
Background
The World Health Organization places Cuba in its Region of the Americas, the region served by the Pan American Health Organization. PAHO is both the health agency of the Americas in its own right and the WHO regional office for the Americas, so a health programme in Cuba is run through PAHO on WHO's behalf. WHO maintains a country office in Cuba, with its own Spanish-language site, and a country cooperation strategy for Cuba. This is why reports on Cuban health programmes, such as the HEARTS package for cardiovascular care in primary health, are published by PAHO rather than by WHO headquarters. WHO's country page for Cuba also carries its 2015 news release validating the elimination of mother-to-child transmission of HIV and syphilis in Cuba.
WHO region:
Region of the Americas
Regional office:
Pan American Health Organization (PAHO)
WHO presence in Cuba:
A country office with a country cooperation strategy
Why it matters for exams: Candidates are regularly asked which WHO region a country belongs to, and the Americas is the one region whose office is a separate organisation with its own name.
Kerala PSCUPSCSSC
In plain words
WHO region — One of the six groupings of countries through which the World Health Organization organises its work.
Country cooperation strategy — A medium-term plan agreed between WHO and a country setting out what they will work on together.
5 October 2026
A meeting of senior Health Department officials has proposed a vigilance mechanism inside the Kerala Medical Services Corporation Limited, the agency that buys medicines for government hospitals.
Health Minister K. Muraleedharan handed over the file carrying the proposal.
The proposed wing would have a police officer, a biomedical engineer, the chief pharmacist of the In-House Drug Bank at Thiruvananthapuram Medical College and a Health Department official.
It is meant to make procurement more transparent and to detect purchases of substandard medicines at inflated prices, quantities overstated on bills, inaccurate stock records and delayed payment of bills.
The file has been submitted and a decision on it is pending.
Kerala has separately moved to overhaul KMSCL procurement, with fresh tenders from October and blacklisting for suppliers of substandard drugs.
Agency:
Kerala Medical Services Corporation Limited
Proposed members:
Four, including a police officer and a biomedical engineer
Status:
File submitted, decision pending
Why it matters for exams: KMSCL is the body an aspirant is asked to name as Kerala's drug procurement agency, and the oversight mechanism around it is live policy.
Kerala PSC
In plain words
KMSCL Kerala Medical Services Corporation Limited — The State company that procures and distributes medicines and equipment for Kerala's government hospitals.
Blacklisting Blacklisting of a supplier — Barring a firm from future government tenders after its supply or conduct is found wanting.
5 October 2026
A Nature news feature published on 1 October 2026 sets out the case for cancer interception, which means treating abnormally growing tissue before it becomes cancer and spreads.
The PRECEDE study, led by Diane Simeone at UC San Diego Health, is enrolling 20,000 people at raised risk; a little more than 12,000 have joined so far and more than 50 have been diagnosed with pancreatic cancer, many at the earliest stages.
Simeone has proposed that interception could lift five-year survival from 13.7 per cent to 50 per cent.
Daraxonrasib, sold as Rasonque, was approved by the United States Food and Drug Administration in August 2026 for advanced pancreatic cancer, and researchers want to test it at earlier stages.
Work discussed at the AACR Pancreatic Cancer Conference in September 2026 included contributions from Anirban Maitra of NYU Langone Health and Ben Stanger of the University of Pennsylvania.
Target enrolment:
20,000
Enrolled so far:
a little more than 12,000
Five-year survival now:
13.7%
Survival goal:
50%
Drug approved:
Daraxonrasib (Rasonque), August 2026
Why it matters for exams: Screening and early detection of cancer is a recurring theme, and the survival figures here are the sort of data a question is built on.
Kerala PSCUPSC
In plain words
Cancer interception cancer interception — Treating abnormal tissue growth before it becomes a cancer that can spread.
PRECEDE Pancreatic Cancer Early Detection consortium study — A large study enrolling people at raised risk of pancreatic cancer to catch it early.
FDA Food and Drug Administration — The United States regulator that approves medicines for sale.
5 October 2026
The Nature paper, published on 30 September 2026, describes disease tolerance rather than faster clearance of the pathogen.
Mice previously infected with the parasitic nematode Nippostrongylus brasiliensis survived lethal H1N1 influenza while carrying the same viral burden as control mice.
Nerve- and airway-associated macrophages were both necessary and sufficient: removing them abolished the protection, and transferring them conferred it.
The training works through IL-4-STAT6-PPAR-gamma and ARG1-dependent chromatin reprogramming that sets up pro-resolving and reparative programmes.
Protection came from reduced immunopathology, amplified type 2 immunity, more eosinophils and faster tissue repair, not from killing more virus.
In human lung tissue the same repair programme was enriched in idiopathic pulmonary fibrosis and absent in chronic obstructive pulmonary disease.
Journal and date:
Nature, 30 September 2026
Parasite used:
Nippostrongylus brasiliensis
Virus:
H1N1 influenza
Cells responsible:
nerve- and airway-associated macrophages
Why it matters for exams: Disease tolerance as distinct from pathogen clearance is a concept worth knowing, and the paper names the exact cells and pathway involved.
Kerala PSCUPSC
In plain words
Macrophage macrophage — A white blood cell that swallows debris and microbes and helps repair tissue.
Disease tolerance disease tolerance — Surviving an infection by limiting the damage it causes rather than by removing the pathogen.
Chromatin reprogramming chromatin reprogramming — A lasting change in how DNA is packaged, which alters which genes a cell can switch on.
5 October 2026
MY Bharat and its partner organisations held the 'Walk for Nasha Mukt Yuva' on 4 October 2026 at more than 150 locations across the country, with over 1 lakh youth and citizens taking part.
The walk is part of the 'Nasha Mukt Yuva for Viksit Bharat' Abhiyan of the Ministry of Youth Affairs and Sports.
Participants joined walks of 3 to 5 km along with Nukkad Nataks, slogan writing, heritage walks and other youth-led awareness activities.
Several programmes also administered the Nasha Mukt Yuva Pledge, by which participants committed to staying away from substance abuse.
Dignitaries who took part included 2 Lieutenant Governors, 1 Cabinet Minister, 8 Members of Parliament and 8 Members of Legislative Assemblies.
Participants:
over 1 lakh
Locations:
more than 150
Length of the walks:
3-5 km
Members of Parliament who joined:
8
Why it matters for exams: MY Bharat and the Nasha Mukt Yuva for Viksit Bharat Abhiyan are named in scheme questions, and the figures are clean.
Kerala PSCUPSCSSC
In plain words
MY Bharat Mera Yuva Bharat — An autonomous body under the Ministry of Youth Affairs and Sports that is the government's platform for youth volunteering.
Nukkad Natak — A street play performed in a public place to carry a social message.
Background
The World Health Organization announced that Cuba became the first country in the world to receive validation from WHO that it had eliminated mother-to-child transmission of HIV and syphilis. WHO/PAHO had been working with partners in Cuba and other countries in the Americas since 2010 on a regional initiative for that purpose. An international expert mission convened by PAHO/WHO visited Cuba in March 2015 and, during a five-day visit, saw health centres, laboratories and government offices across the island; its members came from Argentina, the Bahamas, Brazil, Colombia, Italy, Japan, Nicaragua, Suriname, the United States of America and Zambia. The country had worked to ensure early access to prenatal care and testing, treatment for women who test positive and their babies, and services delivered through an equitable, accessible and universal health system. In 2013, only two babies were born with HIV in Cuba, and only 3 babies were born with congenital syphilis. WHO uses validation to attest that a country has met the internationally set targets at a specific point in time, and countries are required to maintain ongoing programmes.
Standing:
first country in the world
Expert mission to Cuba:
March 2015
Babies born with HIV in Cuba in 2013:
two
Babies born with congenital syphilis in 2013:
3
Regional initiative running since:
2010
Why it matters for exams: Firsts recognised by a UN specialised agency are asked directly, and this one also tests what WHO means by validation as against eradication.
Kerala PSCUPSC
In plain words
PAHO PAHO — The health body for the Americas that works with WHO as its regional office for that continent.
Validation Validation — WHO's formal attestation that a country has met set targets at a point in time; it is not the same as permanent eradication.
4 October 2026
Lieutenant Governor Dr. Dinesh Sharma inspected the Andaman and Nicobar Islands Institute of Medical Sciences (ANIIMS) at Corbyn's Cove, Sri Vijaya Puram, on 3 October 2026.
He directed that construction of Wing-A, Wing-B and Wing-C of the Science Building be expedited without compromising quality or the timeline.
He ordered repair of the non-functional mess chimney and procurement of a DG set of appropriate capacity through a transparent process.
He also asked for gymnasium equipment to be arranged for students and directed the Andaman Public Works Department to ensure adequate water supply through a check dam or storage tank.
The inspection covered the newly constructed Academic Building, the hostel and the mess. Dr. Sachin Shinde, Commissioner-cum-Secretary (Health), Ms. Vandana Rao, Secretary (Health), Dr. Mukesh Tripathi, Director, ANIIMS, and Ms. Purva Garg, Deputy Commissioner, South Andaman, were present.
Institute:
ANIIMS, Corbyn's Cove, Sri Vijaya Puram
Wings to be expedited:
Wing-A, Wing-B and Wing-C of the Science Building
Date of inspection:
3 October 2026
Why it matters for exams: ANIIMS is the Union Territory's own medical institute, and questions on island institutions and the administrator's review powers are common.
Kerala PSCUPSC
In plain words
ANIIMS Andaman and Nicobar Islands Institute of Medical Sciences — The medical college and institute of the Andaman and Nicobar Islands, located at Sri Vijaya Puram.
DG set Diesel generator set — A standby generator that supplies electricity when the regular supply fails.
4 October 2026
Health and Devaswom Minister K. Muraleedharan has announced legislation to regulate treatment costs in private hospitals and to make billing transparent.
A four-member committee headed by the Principal Secretary of the Health Department will draft the Bill. Its other members are the Director of Health Services, the Director of Medical Education and the Managing Director of KMSCL.
The committee will examine charges for medicines, diagnostic tests, imaging scans, room rent and procedures, and will consult private hospitals and other stakeholders.
The proposed framework would require private hospitals to tell patients the expected cost of treatment in advance, to give itemised bills, and to keep medicine pricing transparent, including sales below the maximum retail price.
The Minister said the government recognises the role of private hospitals in Kerala's healthcare sector but wants to keep treatment costs affordable, and that the rules will also take their operating costs into account.
The draft Bill is to be placed before the Kerala Legislative Assembly.
Committee head:
Principal Secretary, Health Department
Committee size:
Four members
Minister:
K. Muraleedharan, Health and Devaswom
Why it matters for exams: A named committee, its exact composition and the specific duties a proposed Kerala Bill would place on private hospitals are all directly examinable.
Kerala PSCUPSC
In plain words
MRP Maximum Retail Price — The highest price at which a packaged product may be sold to a consumer in India.
4 October 2026
Health Minister K. Muraleedharan has directed the Principal Secretary of the Health Department to set up district-level teams to monitor medicine availability in government hospitals.
Each team will have the Additional DMO (Health) or Deputy DMO (Health) as convener, along with the hospital superintendent, the Assistant Drugs Controller or Drugs Inspector, the pharmacy store superintendent or pharmacy officer in charge, and the KMSCL warehouse manager.
The teams will verify shortage complaints, check actual stock and inspect hospital pharmacies directly.
Weekly reports go to the Director of Health Services for hospitals and district general hospitals, and to the Director of Medical Education for medical colleges; serious shortages must be reported at once without waiting for the weekly report.
KMSCL's general manager had reported that 28 medicines were unavailable, while the Minister said 18 items are currently in short supply, including medicines for diabetes, heart disease, infections and cancer.
KMSCL has been functioning without a permanent managing director, with charge given to its general manager, and the Minister has said the shortage would be resolved within a week.
Team convener:
Additional DMO (Health) or Deputy DMO (Health)
Medicines reported unavailable by KMSCL's general manager:
28
Items in short supply, per the Minister:
18
Reporting frequency:
Weekly
Why it matters for exams: It names the exact composition and reporting chain of a new state monitoring mechanism, and the role of KMSCL in Kerala's drug procurement.
Kerala PSCUPSC
In plain words
KMSCL Kerala Medical Services Corporation Limited — The State government company that procures and distributes medicines and equipment for Kerala's government hospitals.
DMO District Medical Officer — The head of the Health Services department in a district.
Background
The Codex Alimentarius is a collection of internationally adopted food standards and related texts presented in a uniform manner. It is drawn up under the Joint FAO/WHO Food Standards Programme. These food standards and related texts aim at protecting consumers' health and ensuring fair practices in the food trade. Since its foundation in 1963, the Codex system has evolved in an open, transparent and inclusive way. While being recommendations for voluntary application by members, Codex standards serve in many cases as a basis for national legislation. The reference made to Codex food safety standards in the World Trade Organization's Agreement on Sanitary and Phytosanitary measures means that Codex has far reaching implications for resolving trade disputes. The Codex Alimentarius Commission has 189 Codex Members, made up of 188 Member Countries and 1 Member Organization, which is the European Union. Membership of the Commission is open to all Member Nations and Associate Members of FAO and WHO which are interested in international food standards.
Year the Codex system was founded:
1963
Programme under which it is drawn up:
Joint FAO/WHO Food Standards Programme
Legal standing of a Codex standard:
recommendations for voluntary application
Codex Members:
189
Member countries:
188
The single member organization:
The European Union
Why it matters for exams: The joint FAO and WHO parentage of Codex, its voluntary standards and the link to the WTO's sanitary agreement are frequent questions on food safety institutions.
Kerala PSCUPSCSSC
In plain words
Codex Alimentarius Codex Alimentarius — The collection of internationally adopted food standards and related texts drawn up under the Joint FAO/WHO Food Standards Programme.
SPS Agreement Agreement on Sanitary and Phytosanitary Measures — The World Trade Organization agreement on food safety and animal and plant health measures, which refers to Codex food safety standards.
FAO Food and Agriculture Organization of the United Nations — The United Nations agency for food and agriculture, which runs the food standards programme jointly with the World Health Organization.
Background
The Kerala High Court has held that Section 100 of the Patents Act, 1970 takes in the Government's entitlement to use a patented invention to manufacture a medicine and sell it on a non-commercial basis to a needy patient; this is the provision that ruling rests on.
Section 100 is headed 'Power of Central Government to use inventions for purposes of Government'.
It allows the Central Government, and any person authorised in writing by it, to use the invention for the purposes of Government at any time after an application for a patent has been filed or a patent has been granted.
Where the invention had already been recorded, tested or tried by or for the Government before the priority date, that use may be made free of any royalty or other remuneration to the patentee.
Otherwise the terms are agreed with the patentee, or in default of agreement are determined by the High Court on a reference under section 103, and the patentee is paid not more than adequate remuneration in the circumstances of each case.
The Government must notify the patentee as soon as practicable, except in case of national emergency or other circumstances of extreme urgency or for noncommercial use.
The same section, in subsection (6), adds the right to sell, on a non-commercial basis, the goods made in exercise of that right.
The Kerala High Court read 'purposes of Government' as taking in the State's duty to improve public health under Article 47 of the Constitution of India.
Provision:
Section 100
Heading of the section:
Power of Central Government to use inventions for purposes of Government
Payment standard:
not more than adequate remuneration
Forum in default of agreement:
High Court
Constitutional provision read in:
Article 47
Why it matters for exams: Government use of a patent under Section 100 is the provision behind a live Kerala High Court ruling on drug prices, and it is regularly set against compulsory licensing in prelims and mains.
Kerala PSCUPSC
In plain words
patentee holder of a patent — The person or company in whose name a patent stands on the register.
priority date priority date of a claim — The date from which a claim in a patent application counts, normally the date the first application was filed.
Article 47 Article 47 of the Constitution of India — A Directive Principle under which the State is to raise the level of nutrition and the standard of living and improve public health.
3 October 2026
On 3 October 2026 the Democratic Republic of the Congo reported a total of 8 442 confirmed Ebola cases, including 4 080 related deaths (data up to 2 October). That is 66 new cases and 38 deaths since the previous report. Ituri remains the worst-hit province with 6 370 cases and 2 933 deaths; North Kivu has 1 657 cases and 979 deaths. Overall, 64 of 167 health zones across seven provinces are affected. The outbreak is caused by Bundibugyo virus. The European Centre for Disease Prevention and Control says a healthcare worker who tested positive on 29 September was evacuated to the Netherlands.
Confirmed cases:
8 442
Related deaths:
4 080
Ituri province:
6 370 cases, 2 933 deaths
Health zones affected:
64 of 167
Why it matters for exams: Global health: a Bundibugyo-virus Ebola outbreak and how disease agencies track it.
Kerala PSCUPSC
In plain words
ECDC European Centre for Disease Prevention and Control — The European Union agency that tracks infectious disease threats.