HLSC 1F90 Lecture Notes - Lecture 13: Innate Immune System, Arachnid, Arthropod

• School: Brock University
• Department: Health Sciences
• Course: HLSC 1F90
• Professor: Dr.Kelli-an Lawrance

Document Summary

Climate variability, global change, immunity and the dynamics of infectious diseases (2009) by andy. Infectious diseases and parasitic diseases cause a great burden on people around the world especially people in low and middle income countries. Infectious agent (instead of microorganism): cause of infection. Host: an organism larger than the infectious agent that provides shelter and nutrients, facility of maturation, reproduction and spread. Infection: presence of an infectious agent in the body (internally) Infestation: presence of an infectious agent on the body (externally) Disease: (cid:862)a pathologi(cid:272)al (cid:272)o(cid:374)ditio(cid:374) of a part, orga(cid:374), or s(cid:455)ste(cid:373) of a(cid:374) orga(cid:374)is(cid:373) resulti(cid:374)g fro(cid:373) (cid:448)arious causes, such as infection, genetic defect, or environmental stress and characterized by an identifiable group of signs or symptoms. Vector: an arthropod usually an insect (or an arachnid) capable of transmitting pathogens that cause infectious disease, a vector is used as a vehicle that carries something. Any pathogen that fails to find a host will become extinct.