The degree to which a substance (a toxin or poison) can harm humans or animals.

Acute toxicity involves harmful effects in an organism through a single or short-term

exposure. Subchronic toxicity is the ability of a toxic substance to cause effects for

more than one year but less than the lifetime of the exposed organism. Chronic toxicity

is the ability of a substance or mixture of substances to cause harmful effects over an

extended period, usually upon repeated or continuous exposure, sometimes lasting for

TELL ME is a 36 month Collaborative Project, which aims to provide evidence and to

develop models for improved risk communication during infectious disease crises.

TELL ME combines public health, social sciences, behavioral sciences, political

sciences, law, ethics, communication and media, in order to develop

original communication strategies regarding complicated messages and advice based

on uncertainties, also addressing vaccine-resistant groups. (1)

(1) TELL ME Project

Point of view that claims that media decisively influence how individual think, fell, and

act, as well as how they view collective life.(1)

(1) Glossary of communication, University of Jyväskylä

Any subjective evidence of disease. In contrast, a sign is objective. Blood coming out a

nostril is a sign; it is apparent to the patient, physician, and others. Anxiety, low back

pain, and fatigue are all symptoms; only the patient can perceive Symptom definition –

(Medical Dictionary: Definitions)