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MACROPARASITES
Typically, the parasitichelminths and arthropods. In common, parasites which do not multiplywithin their definitive hosts but instead manufacture transmission stages (eggs and larvae) which passinto the outside environment. Immune responses elicited against macroparasites usually depend on the number of parasites gift in a givenhost and tends to be of a relatively transient character. The keyepidemiologicalmeasurement is usually the number of parasites for host.
Such parasites are often found in a highly aggregated distribution.
Contrast microparasites.