Incubation Period
The time between exposure to a pathogen and the appearance of symptoms.
Index Case
The first identified case in an outbreak.
Indoor Air Quality (IAQ)
The condition of the air inside buildings, affecting health and comfort.
Infection Control
Measures to prevent the spread of infections.
Infectivity
The ability of a pathogen to establish an infection.
Innate Immunity
The body’s first line of defense against pathogens, present from birth.
Isolation
Separating sick individuals from healthy ones to prevent disease spread.
Isolation Ward
Hospital units designed for the care of contagious patients.
Latent Period
The time between exposure to a pathogen and the ability to transmit the disease.
Lockdown
A public health measure restricting movement to prevent disease spread.
