Microorganisms and Disease examines how pathogenic microbes cause diseases in humans, animals, and plants, and how hosts respond to these infections. This topic forms a crucial link between microbiology, pathology, and immunology, making it essential for Class 11–12 students, NEET aspirants, and undergraduate learners.
In this section, you will study:
Types of disease-causing microorganisms
Modes of transmission of infectious diseases
Mechanisms of pathogenicity and virulence
Host–pathogen interactions
Common bacterial, viral, fungal, and protozoan diseases
Symptoms, prevention, and control of infectious diseases
Role of hygiene, sanitation, and public health measures
NCERT-based explanations, diagrams, MCQs, and exam-oriented questions
The content is structured to build conceptual clarity, enhance cause–effect understanding, and help students perform confidently in school examinations, NEET, and undergraduate assessments.
Develop a strong understanding of how microorganisms cause disease and how infections can be prevented and controlled in real-world biological systems.
Q. What is the main mode of transmission for the influenza virus?
A.
Vector-borne
B.
Airborne
C.
Direct contact
D.
Fecal-oral
Solution
The influenza virus is primarily transmitted through airborne droplets when an infected person coughs or sneezes.
