Cohort Study Cohort studyDownload Introduction Epidemiology aims to identify the causes and determinants of diseases in populations. To understand whether a particular exposure leads to a specific outcome, we must observe individuals over time and compare the occurrence of disease among exposed and non-exposed groups. Consider a hypothetical situation: In a village of 2,000 people, … Continue reading CM 3.1 Cohort Study: Key Features and Benefits
Category: For Medical Students
Understanding India’s Universal Immunization Programme (UIP)
UIP - CopyDownload Introduction In routine outpatient departments and pediatric wards, children commonly present with fever, cough, diarrhea, and other infectious conditions. A significant proportion of these illnesses are caused by vaccine-preventable diseases (VPDs). These diseases not only contribute to avoidable morbidity and mortality but also impose a heavy burden on families and the health … Continue reading Understanding India’s Universal Immunization Programme (UIP)
CM 1.4 Natural History of Disease
Natural History of Disease (1)Download Natural History of Disease Introduction “When does a disease actually begin—when symptoms appear or much before that?” This fundamental question lies at the heart of understanding the natural history of disease. Disease does not suddenly start at the moment when signs and symptoms become evident. Instead, it begins much earlier, … Continue reading CM 1.4 Natural History of Disease
CM 1.2 Definition of Health and Concept of Holistic Wellness
Definition of Health & Concept of Holistic WellnessDownload Introduction Imagine two people — Ravi, a 35-year-old software engineer, and his 75-year-old grandmother.Ravi exercises regularly, doesn’t smoke or drink, and has no chronic disease. Yet, he feels constantly stressed, disconnected from family, and struggles with sleep. His grandmother, though diabetic, stays cheerful, socially active, and content.So, … Continue reading CM 1.2 Definition of Health and Concept of Holistic Wellness
Health Care System in India: A Comprehensive Review
Health care System in IndiaDownload Introduction The health care system is the backbone of a nation’s public health, shaping the quality of life, longevity, and overall well-being of its citizens. In India, the health care system has evolved into a structured, multi-tiered network designed to provide preventive, promotive, curative, rehabilitative, and palliative services. Understanding its … Continue reading Health Care System in India: A Comprehensive Review
Understanding Disaster Management Cycle: Proven Phases for Saving Lives and Reducing Risks
Disaster manangement CycleDownload Introduction On August 2, 2025, a powerful earthquake measuring 8.8 on the Richter scale struck off the eastern coast of Russia. This seismic event triggered tsunami alerts across several countries including Japan, the Philippines, and Alaska. The tremors were intense, ocean swells rose dramatically, and within minutes, warning systems were activated. Remarkably, … Continue reading Understanding Disaster Management Cycle: Proven Phases for Saving Lives and Reducing Risks
NVBDCP: India’s Shield Against Deadly Vector-Borne Diseases
NVBDCPDownload Introduction Vector-borne diseases pose a significant public health threat in India, with the mosquito being the deadliest vector. A single species of mosquito is capable of transmitting multiple diseases—Aedes aegypti (dengue, chikungunya, Zika, yellow fever), Culex species (Japanese encephalitis, West Nile virus), and Anopheles mosquitoes (malaria). In response to this public health crisis, the … Continue reading NVBDCP: India’s Shield Against Deadly Vector-Borne Diseases
Epidemiology of Hepatitis B: A Global Health Crisis
Epidemiology of Hepatitis BDownload Introduction to Hepatitis B Hepatitis B, often dubbed "serum hepatitis," is a serious liver infection caused by the hepatitis B virus (HBV). It presents a pressing global health challenge, especially in tropical and developing regions. Hepatitis B may manifest as an acute or chronic disease, ranging from mild, asymptomatic illness to … Continue reading Epidemiology of Hepatitis B: A Global Health Crisis
The Science and Strategy of Screening: Principles, Criteria, and Applications
Screening - 2Download Screening has become an essential public health strategy for early disease detection, enabling timely intervention and reducing the burden of morbidity and mortality. However, it is not a blanket process to be applied indiscriminately. The concept of screening is governed by scientific, ethical, and economic considerations, primarily laid out by Wilson and … Continue reading The Science and Strategy of Screening: Principles, Criteria, and Applications
Emerging and Reemerging Infectious Diseases: A Global Health Challenge
Emerging^0 Reemerging infectious diseasesDownload Introduction The resurgence of diseases once thought to be eliminated, alongside the appearance of new pathogens, has emerged as a critical concern in global health. The reappearance of measles in 2025, despite its near-eradication, underscores the vulnerabilities in public health systems and the dynamic nature of infectious diseases. Emerging and reemerging … Continue reading Emerging and Reemerging Infectious Diseases: A Global Health Challenge