Policy experience

Evidence for
public decisions.

My policy work focuses on bringing scientific evidence into public health decision-making. I have contributed to national and international policy initiatives through epidemiological analysis, evidence synthesis, technical consultation, policy development, and institutional collaboration.

These experiences span antimicrobial resistance, infectious disease prevention, pandemic preparedness, climate-sensitive health risks, and humanitarian epidemic response. They reflect different aspects of the policy process, from identifying emerging public health priorities and evaluating possible responses to developing implementation strategies and strengthening institutional coordination.

Explore the work ↓

01 / Policy process

Problem identification & agenda-setting

Identifying emerging public health challenges, examining gaps in existing responses, and generating evidence to inform policy priorities.

1.1

Antimicrobial resistance policy development in India

Public Health Foundation of India · WHO India · 2016–2017
Cover of the background paper Antimicrobial Resistance and Its Containment in India

At the Public Health Foundation of India, I contributed to the development of a national situation analysis of antimicrobial resistance (AMR), commissioned by the WHO India Country Office to inform an interministerial review and the development of India’s first National Action Plan on AMR.

My contributions included synthesizing evidence on antimicrobial resistance, antibiotic consumption, surveillance systems, and existing policy responses. The assessment highlighted gaps in the country’s capacity to monitor and contain AMR, emphasizing the need for coordinated action across human health, animal health, and other relevant sectors.

I also coauthored an analysis published in The BMJ examining India’s AMR response and the institutional and policy challenges associated with its containment.

Selected publications and documents

02
Antibiotic resistance and its containment in IndiaKakkar M, Walia K, Vong S, Chatterjee P, Sharma A. BMJ. 2017;358:j2687.
Read article ↗
1.2

Antimicrobial resistance surveillance for enteric infections

ICMR–National Institute of Cholera and Enteric Diseases · WHO India · 2018
Agar plates from antibiotic susceptibility testing

At the Indian Council of Medical Research’s National Institute of Cholera and Enteric Diseases (ICMR-NICED), I investigated fluoroquinolone resistance among Escherichia coli isolates obtained through facility-based surveillance of patients presenting with diarrheal illness in Kolkata, India.

The study identified fluoroquinolone resistance in 94 of 152 E. coli-positive specimens (62%), including both diarrheagenic and non-diarrheagenic strains. These findings highlighted the limitations of surveillance approaches focused exclusively on established enteric pathogens and the potential value of monitoring resistance in a broader range of bacterial isolates.

I led the development of a policy report presenting these findings to the WHO India Country Office and India’s Ministry of Health and Family Welfare. The report outlined the implications for antimicrobial resistance surveillance and identified priorities for further investigation, while acknowledging the limitations of the short surveillance period.

Policy report

01
Fluoroquinolone Resistance among E. coli Isolated from a Facility-Based Surveillance of Diarrhea Patients Attending Tertiary Care Government Hospitals in Kolkata, West BengalChatterjee P, Mukhopadhyay A, Dutta S. ICMR-NICED, 2018. Report submitted to WHO India and the Ministry of Health and Family Welfare.
Policy report
1.3

Environmental dimensions of antimicrobial resistance

United Nations Environment Programme · 2022–2023
Veterinary antibiotic products used for livestock

I contributed to the United Nations Environment Programme’s flagship report, Bracing for Superbugs: Strengthening Environmental Action in the One Health Response to Antimicrobial Resistance.

The report examined the environmental drivers of antimicrobial resistance, including pharmaceutical pollution, agricultural antimicrobial use, wastewater contamination, and the dissemination of resistant microorganisms and resistance determinants through environmental pathways.

By synthesizing evidence across human, animal, and environmental health, the report established a basis for expanding AMR policy beyond healthcare settings and identifying priorities for environmental surveillance, prevention, and regulation.

This work complemented my research examining the environmental consequences of mass drug administration programs, including the potential for antimicrobial exposures to contribute to resistance emergence and dissemination.

02 / Policy process

Policy analysis & formulation

Synthesizing scientific evidence, assessing policy options, and supporting technical deliberations to inform public health decisions.

2.1

India’s National Task Force on COVID-19

Indian Council of Medical Research · 2020
A researcher in protective equipment during the COVID-19 response in India, April 2020

During the initial phase of the COVID-19 pandemic, I managed the secretariat supporting the Indian Council of Medical Research’s National Task Force on COVID-19, through the Translational Global Health Policy Research Cell.

My responsibilities included preparing technical background documents, conducting rapid evidence syntheses, coordinating expert deliberations, documenting proceedings, and drafting policy documents to support national decision-making. The Task Force examined emerging scientific evidence and policy questions concerning COVID-19 testing, surveillance, clinical management, treatment, and prevention.

As a member of the Task Force’s Epidemiology and Surveillance Working Group, I also contributed to discussions on research priorities, epidemiological protocols, and the development of the national COVID-19 research portfolio.

Alongside this work, I led an early review of emerging COVID-19 evidence, published in the Indian Journal of Medical Research. The review examined the epidemiological and clinical evidence available at the beginning of the pandemic, identified critical knowledge gaps, and highlighted the importance of health-system preparedness, community engagement, and coordinated public health responses.

Selected publications

01
The 2019 novel coronavirus disease (COVID-19) pandemic: A review of the current evidenceChatterjee P, Nagi N, Agarwal A, et al. Indian Journal of Medical Research. 2020;151:147–159.
Read article ↗
02
Guidance for building a dedicated health facility to contain the spread of the 2019 novel coronavirus outbreakAgarwal A, Nagi N, Chatterjee P, et al. Indian Journal of Medical Research. 2020;151:177–183.
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04
Healthcare workers & SARS-CoV-2 infection in India: A case-control investigation in the time of COVID-19Chatterjee P, Anand T, et al. Indian Journal of Medical Research. 2020;151:459–467.
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2.2

Oral cholera vaccine policy in India

ICMR–National Institute of Cholera and Enteric Diseases · 2017–2018
A presentation on cholera outbreaks, January 2018

At ICMR-NICED, now the National Institute for Research in Bacterial Infections, I contributed to efforts to evaluate the potential introduction of oral cholera vaccines (OCVs) in cholera-endemic areas of India.

I synthesized epidemiological evidence from published studies, outbreak reports, and geographic assessments of cholera burden to identify high-risk populations and areas where vaccination could offer public health benefits. This work contributed to an ICMR policy brief examining the rationale and considerations for introducing oral cholera vaccines in India.

I subsequently helped develop a proposal to evaluate OCV delivery through existing public healthcare services in a cholera hotspot in West Bengal, including engagement with the Kolkata Metropolitan Development Authority.

In July 2018, I participated in the ICMR-NICED delegation presenting the proposal to the Standing Technical Sub-Committee of India’s National Technical Advisory Group on Immunization (NTAGI).

The committee recommended that the proposed study be pursued as a pilot to generate evidence for future policy deliberations, rather than recommending immediate programmatic introduction.

Policy brief and technical presentations

01
Oral Cholera Vaccines—Worth a Shot? A Policy BriefPanda S, Chatterjee P, Deb AK, Kanungo S, Dutta S. Indian Council of Medical Research, November 2017.
Read brief ↗
02
ICMR Policy Brief on Programmatic Introduction of OCV in Cholera Hotspots in IndiaChatterjee P. Technical presentation, January 2018.
Presentation
03
Oral Cholera Vaccine Introduction in Endemic Areas of West Bengal through Public Health Care Delivery System and Update on Cholera Disease BurdenICMR-NICED team: Dutta S, Kanungo S, Chatterjee P. Presentation to the NTAGI Standing Technical Sub-Committee, July 6, 2018.
Presentation
2.3

Technical consultation on cholera control

Global Task Force on Cholera Control · 2018
A session of a technical meeting on cholera control, November 2018

I participated in the third meeting of the Global Task Force on Cholera Control’s Working Group on Case Management, contributing perspectives from India’s experience with cholera prevention and clinical management.

My presentation examined challenges in community-level cholera care, including weaknesses in surveillance and referral systems, inappropriate antibiotic use, and gaps in access to safe drinking water.

I also discussed the potential role of geographic hotspot mapping and community-based interventions in strengthening cholera prevention and response, and reviewed draft technical guidance considered by the working group.

Technical consultation

01
Update from IndiaChatterjee P. Third Meeting of the Global Task Force on Cholera Control Working Group on Case Management, November 5–6, 2018.
Presentation
02
Meeting reportGlobal Task Force on Cholera Control.
Read report ↗

03 / Policy process

Implementation planning & assessment

Developing practical frameworks, assessing institutional readiness, and identifying the operational requirements for translating public health priorities into action.

3.1

Assessing antimicrobial resistance containment in South-East Asia

WHO Regional Office for South-East Asia · 2016
Cover of the WHO report Situational Analysis on Antimicrobial Resistance in the South-East Asia Region, 2016

I contributed to the development and revision of a regional situation-analysis framework designed to assess national antimicrobial resistance containment systems across the WHO South-East Asia Region.

The framework incorporated indicators covering AMR surveillance, antimicrobial stewardship, infection prevention and control, public awareness, research capacity, and multisectoral coordination under the One Health approach.

I helped develop the assessment protocol and indicators used to examine national capacities, identify institutional and operational gaps, and evaluate progress toward strengthening AMR containment systems.

The framework was piloted in Indonesia and provided a structured approach for examining the operational capacities underlying national AMR policies and action plans.

Regional assessment framework

3.2

Climate adaptation planning for waterborne diseases

National Centre for Disease Control, India · ICMR-NICED · 2017–2018
A water tanker moving through a flooded urban street. Photo: Pranab Chatterjee

I participated in regional consultations convened by India’s National Centre for Disease Control and state health departments to support the development of state climate-health action plans.

My contributions focused on the implications of climate variability and climate change for waterborne disease prevention, surveillance, and preparedness.

At consultations involving eastern and northeastern Indian states, I presented an approach to identifying vulnerable districts, integrating meteorological and health surveillance data, developing early-warning mechanisms, and strengthening health-system preparedness for climate-sensitive waterborne disease outbreaks.

I subsequently contributed to similar discussions involving western, central, and southern states.

Building on these consultations, I led the development of an adaptation plan for climate-sensitive waterborne diseases at ICMR-NICED, outlining potential surveillance, preparedness, and response measures.

Presentations and adaptation plan

01
Impact of Climate Change on Water Borne Diseases in East and Northeast Zone: An Overview and Proposed Action PlanChatterjee P. Regional consultation on state climate-health action plans, Kolkata, October 11–12, 2017.
Presentation
02
Impact of Climate Change on Water Borne DiseasesChatterjee P. Regional consultation for western, central, and southern states, November 22–23, 2017.
Presentation
03
Adaptation Plan for Climate Sensitive Water Borne DiseasesDutta S, Deb AK, Chatterjee P. ICMR-NICED, 2018.
Adaptation plan

04 / Policy process

Policy governance & coordination

Examining and strengthening the institutional arrangements, partnerships, and coordination mechanisms needed for collective public health action.

4.1

Regional research collaboration for emerging infectious diseases

Indian Council of Medical Research · WHO South-East Asia · 2019
Participants at the ICMR and WHO South-East Asia regional consultation, New Delhi, August 2019

I supported a joint ICMR–WHO South-East Asia initiative to strengthen regional research collaboration and preparedness for emerging and re-emerging infectious diseases.

The initiative, known as the Regional Enabler for South-East Asia Research Collaboration for Health (RESEARCH), sought to establish a regional platform for collaborative research, shared technical capacity, and coordinated responses to infectious disease threats.

For the August 2019 regional consultation in New Delhi, I reviewed relevant evidence, developed technical background and session materials, and helped draft the consultation’s outcome resolution.

The participating countries agreed to the proposed approach in principle, establishing a basis for subsequent national consideration, endorsement, and potential implementation.

Regional consultation

01
Resolution on the RESEARCH Platform for Emerging and Re-emerging Infectious DiseasesIndian Council of Medical Research and WHO Regional Office for South-East Asia. New Delhi consultation, August 27–28, 2019.
Resolution
02
About the RESEARCH initiativeIndian Council of Medical Research.
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4.2

Global coordination of epidemic response in humanitarian settings

Johns Hopkins Center for Humanitarian Health · READY Initiative · 2023–2025

At the Johns Hopkins Center for Humanitarian Health, I contributed to a READY Initiative study examining global coordination mechanisms for large-scale epidemic responses in humanitarian emergencies.

The study combined a scoping review of existing coordination arrangements with qualitative interviews involving experts from humanitarian organizations and public health agencies.

We examined the strengths and limitations of established response structures, including the humanitarian cluster system and incident management approaches, with particular attention to their ability to support integrated epidemic responses in fragile and crisis-affected settings.

The analysis identified challenges associated with fragmented leadership, overlapping institutional mandates, parallel coordination arrangements, and insufficient integration between humanitarian and public health response systems.

Our recommendations emphasized strengthening coordination between existing mechanisms, clarifying institutional responsibilities, improving integration with national and local response capacities, and developing arrangements that can adapt to the operational realities of humanitarian emergencies.

The work informed a technical report, a practice-oriented policy brief, and a subsequent peer-reviewed publication in BMJ Open.

Selected publications and reports

01
Fit for Purpose? Global Coordination Mechanisms of Large-Scale Epidemic Response in Humanitarian SettingsSpiegel P, Esmail M, Parikh K, Chatterjee P, Quaye M. Johns Hopkins Center for Humanitarian Health and READY Initiative, 2023.
Read report ↗