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Disease time periods
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Latent period
For infectious diseases it is the time period from exposure to when the infectious agent is shed .
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Infectious period
High risk period
Incubation period
Subclinical
The time period during which an individual can spread disease to another animal . An animal may be clinically affected but not infectious , or , infectious but not clinically affected .
The time period during which the animal is shedding infectious disease agent but there are no clinical signs of disease .
The time period from exposure to infection through to when clinical signs are manifested . This may be referred to as the induction period in the event of a toxic insult such as chemical contamination .
When an animal is infected but there are no overt clinical signs .
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Clinical
When there are overt external signs or behavioural changes due to infection .
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