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The 15 pages that link to Infectious dose, each with the reason it gives.

• PathogenRelated: A pathogen’s dose helps determine whether exposure becomes infection.

• Incubation periodRelated: The number of organisms entering the body can influence how quickly symptoms develop.

• Fecal–oral routeRelated: The dose ingested helps determine whether exposure leads to infection.

• Asymptomatic infectionRelated: The amount entering the body can affect infection severity and symptom expression.

• GiardiasisRelated: Giardia can cause infection after ingestion of relatively few cysts, helping explain waterborne outbreaks.

• Infectious disease transmissionRelated: Exposure becomes transmission only when enough viable pathogen reaches a susceptible host.

• Droplet transmissionRelated: Exposure matters only insofar as enough viable pathogen reaches a susceptible person.

• Food contaminationRelated: The number of pathogens present helps determine whether contaminated food causes illness.

• Respiratory transmissionRelated: The quantity inhaled or deposited helps determine whether exposure leads to infection.

• Virulence factorRelated: Factor activity can change how many microbes are needed to initiate infection.

• FomiteRelated: The amount transferred from an object helps determine whether exposure causes infection.

• Aerosol transmissionRelated: Inhaled particle concentration and exposure duration help determine the dose received.

• Pathogen transmissionRelated: The amount delivered during transmission can affect whether exposure results in infection.

• ShigellaRelated: Shigella can cause infection after exposure to a comparatively small number of bacteria.

• Biological weaponRelated: The dose required for infection influences the threat posed by exposure.