Survival of adults and development stages of Sarcoptes scabiei var. canis when off the host

Experimental & Applied Acarology
Larry G ArlianM J Pole

Abstract

All life-stages of Sarcoptes scabiei var. canis survive in the hosts' environment for several days to several weeks depending on r.h. and temperature. Survival of larvae was comparable to males; survival of nymphs was comparable to females. Females and nymphs generally survived longer than larvae and males. Low temperature (10-15 degrees) and high r.h. prolonged survival of all life stages. At 10-15 degrees C, females and nymphs survived 1-3 weeks at 97% r.h., 1-2 weeks at 75% r.h. and 5-8 days at 45% r.h. At 20-25 degrees C, survival was significantly reduced but all life-stages survived at least 2 days at 25% r.h. and 5-6 days at 75-100% r.h. Long survival off the host coupled with host-seeking behavior of these mites make it likely that environmental contamination is a source of scabies in domestic and wild mammals, and in humans.

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Aug 7, 2007·Parasitology Research·Taghi T BazarganiSadegh Rahbari
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Sep 12, 2012·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Emily S AlmbergPeter J Hudson
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Jul 2, 2021·Tropical Diseases, Travel Medicine and Vaccines·Giulia Rinaldi, Kholoud Porter

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