CM20.1-4 | Recent Advances in Community Medicine — Practice Quiz

Correct. The WHO declared COVID-19 a PHEIC on 30 January 2020, when human-to-human transmission had been confirmed in multiple countries outside China. The subsequent pandemic declaration came on 11 March 2020 after broader international spread.

PHEIC declaration (30 Jan 2020) ≠ pandemic declaration (11 March 2020). Both dates are milestone public health events tested in examinations.

31 December 2019 was when China first reported the cluster of pneumonia cases to WHO. 11 January 2020 was when China shared the first genetic sequence of SARS-CoV-2. 11 March 2020 was when WHO characterised COVID-19 as a pandemic — after the PHEIC had already been in place for 40 days.

Correct. The 2018 Kerala Nipah outbreak was notable for several healthcare worker infections, highlighting nosocomial (hospital-acquired) transmission risk. This underscored the importance of infection prevention and control (IPC) measures in managing high-consequence infectious diseases.

The 2018 Kerala Nipah outbreak: index case from Pteropus (fruit bat) exposure; nosocomial spread among healthcare workers; containment achieved through rapid isolation, contact tracing and IPC. Case fatality rate ~70%.

Foodborne transmission through date palm sap (B. canis reservoir) characterises Bangladesh outbreaks. Long-distance respiratory transmission is a feature of measles or COVID-19 — Nipah spreads through close direct contact with secretions. The 1998–99 Malaysian outbreak involved pig-to-human transmission, not direct bat-to-human spread in most cases.

Correct. One Health recognises the interdependence of human, animal and ecosystem health. Most emerging infectious diseases (≥70%) are zoonotic in origin. Integrated surveillance at the human-animal-environment interface — as practised in India's National One Health Programme — is essential to detect spillover events early.

One Health = integrated surveillance across humans (health ministry), animals (animal husbandry/agriculture) and environment (forest/ecology). India's National One Health Programme (2021) is the institutional embodiment.

One Health is explicitly multi-sectoral and does not prioritise human health over animal or environmental components. While AMR is one application of One Health, it is not the exclusive focus. Vaccine development coordination is a function of CEPI/GAVI/WHO's pandemic preparedness architecture, not the core definition of One Health.

Correct. The August 2024 PHEIC was driven by the emergence of a new clade Ib variant in the Democratic Republic of Congo (DRC) which showed enhanced transmissibility through sexual and close household contact, and subsequently spread to neighbouring African countries. This was distinct from the 2022 PHEIC driven by clade IIb.

Mpox PHEICs: First (July 2022–May 2023) — clade IIb global spread. Second (August 2024) — clade Ib emergence in DRC and neighbouring countries with higher virulence/transmissibility.

The 2022 PHEIC involved clade IIb spreading through sexual networks. Detection in domestic livestock or a global death toll threshold were not the triggers for the 2024 declaration — the driver was the rapid spread of a more transmissible clade Ib strain across Central and East Africa.

Correct. The effective reproduction number (Rt) represents the average number of secondary cases generated by one case at time t. An Rt < 1 means each case generates fewer than one new case, so the outbreak will self-limit. Moving from 1.8 to 0.7 indicates effective outbreak control, though surveillance must continue until zero cases are reported for two incubation periods.

Rt > 1 = growing outbreak; Rt = 1 = endemic equilibrium; Rt < 1 = declining outbreak. The target of outbreak control is to drive Rt below 1 and maintain it there.

Rt < 1 means the outbreak is declining, not ended — surveillance must continue. Environmental elimination requires specific disinfection data, not Rt alone. Herd immunity is a population-level concept based on immunisation/prior infection coverage, not derived from Rt directly.

Correct. The ABHA (formerly Health ID) is a 14-digit unique health identifier that allows citizens to link their health records from multiple healthcare providers — public and private — creating a longitudinal, interoperable health record. ABDM is the technological backbone of India's digital health ecosystem.

ABDM components: ABHA (unique ID), Health Facility Registry, Healthcare Professionals Registry, Personal Health Records (PHR), and the Unified Health Interface (UHI) for interoperability.

PM-JAY (Pradhan Mantri Jan Arogya Yojana) provides health insurance — it is distinct from the ABHA/Health ID. ASHA payment systems are managed separately. Digital death registration uses the Civil Registration System, not ABDM.

Correct. The MTP Amendment Act 2021 extended the gestational limit to 24 weeks (from 20) for special categories: rape and incest survivors, differently-abled women, minors, women whose marital status changed during pregnancy, and women with foetal abnormalities. For foetal abnormalities that are incompatible with life or cause substantial risk, the Medical Board can allow termination beyond 24 weeks.

MTP 2021 key changes: (1) up to 20 weeks — one doctor's opinion; (2) 20–24 weeks — two doctors' opinion for special categories; (3) beyond 24 weeks — State Medical Board for foetal abnormalities.

The 2021 amendment specifically extended to 24 weeks for special categories — not 20 or 28 as blanket rules. The original 1971 MTP Act had a 20-week general limit. The amendment also removed the requirement for two practitioners' opinion for terminations up to 20 weeks.

Correct. Under the Consumer Protection Act 2019, the pecuniary jurisdiction is: District Commission — up to ₹1 crore; State Commission — ₹1 crore to ₹10 crore; National Commission — above ₹10 crore. A claim of ₹1 crore falls within the District Commission's jurisdiction.

CPA 2019 pecuniary limits (revised from CPA 1986): District ≤ ₹1 Cr; State > ₹1 Cr ≤ ₹10 Cr; National > ₹10 Cr. Medical negligence = 'deficiency in service' under V.P. Shantha 1995 Supreme Court ruling.

The State Commission handles claims above ₹1 crore up to ₹10 crore. The National Commission handles claims exceeding ₹10 crore. There is no 'MCI Consumer Cell' — the MCI was replaced by the National Medical Commission in 2020.

Correct. The Telemedicine Practice Guidelines 2020 explicitly prohibit prescribing Schedule X drugs (habit-forming, e.g., opioids, benzodiazepines) via telemedicine. Schedule H and H1 drugs may be prescribed under specific conditions — Schedule H after video or audio consultation, H1 only after video consultation for follow-up patients.

Telemedicine 2020 prohibited prescriptions: (1) Schedule X drugs — never; (2) H1 drugs — only for known patients via video. First consultation via text: only OTC medicines. Video consultation: broadest prescribing latitude.

Schedule H drugs can be prescribed via telemedicine under certain conditions. Text-only consultations are permitted (with restrictions on medicine types prescribed). Sick certificates can be issued for telemedicine consultations. The key prohibition is on Schedule X substances.

Correct. Immediate notification to the District Health Officer is the first step in the outbreak response cascade — this triggers the public health machinery (rapid response team, laboratory network, risk communication). Contact tracing runs simultaneously. Sample collection is important but follows notification.

Sample collection is essential but is not the first priority over notification. No prophylactic antivirals exist for Nipah with proven efficacy (ribavirin is experimental). There is no licensed Nipah vaccine currently available for mass deployment in India.

Correct. One Health response in a suspected zoonotic encephalitis cluster involves: (1) human health — case management, contact tracing, IPC; (2) animal health — veterinary survey, bat colony assessment, identification of spill-over event; (3) environmental health — mapping bat roosting sites, date palm trees or other food-bridge species. Coordinated multi-sectoral response is the core of One Health.

Treating cases without investigating the animal-environment interface will not prevent further exposure. Culling bats is ecologically counterproductive — Pteropus species are important pollinators; exclusion and habitat modification are preferred. River closure is not based on the epidemiological picture of an encephalitis cluster adjacent to a bat colony.