What is Immunity? Types of Immunity. Innate immunity.
Автор: Pharma Ka Pathsala
Загружено: 2025-12-31
Просмотров: 118
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Immunity is the body's ability to resist or fight off infections and diseases. It is broadly categorized into two main systems.
Innate (Non-Specific) and Acquired/Adaptive (Specific) immunity.
Innate immunity is a non-specific type of defence that is present at the time of birth. It is the body's first and second line of defense. This provides different types of barriers to the entry of foreign agents into our bodies.
Characteristics:
Non-Specific: Targets a wide variety of pathogens.
Immediate: Acts rapidly (within minutes/hours).
No Memory: Does not remember past encounters with specific pathogens.
Present at Birth: Genetically determined.
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