Lagenidium giganteum Pathogenicity in Mammals

Vilela, Raquel; Taylor, John W.; Walker, Edward D.; Mendoza, Leonel

doi:10.3201/eid2102.141091

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Lagenidium giganteum Pathogenicity in Mammals

Published Date:

Feb 2015

Publisher's site:

http://dx.doi.org/10.3201/eid2102.141091 New Site Icon

Source:

Emerg Infect Dis. 21(2):290-297.

[PDF-569.48 KB]

Details:

Alternative Title:

Emerg Infect Dis

Personal Author:

Vilela, Raquel ; Taylor, John W. ; Walker, Edward D. ; Mendoza, Leonel ;

Description:

Infections of mammals by species in the phylum Oomycota taxonomically and molecularly similar to known Lagenidium giganteum strains have increased. During 2013-2014, we conducted a phylogenetic study of 21 mammalian Lagenidium isolates; we found that 11 cannot be differentiated from L. giganteum strains that the US Environmental Protection Agency approved for biological control of mosquitoes; these strains were later unregistered and are no longer available. L. giganteum strains pathogenic to mammals formed a strongly supported clade with the biological control isolates, and both types experimentally infected mosquito larvae. However, the strains from mammals grew well at 25°C and 37°C, whereas the biological control strains developed normally at 25°C but poorly at higher temperatures. The emergence of heat-tolerant strains of L. giganteum pathogenic to lower animals and humans is of environmental and public health concern.

Subject:

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Document Type:

Journal Article

Collection(s):

Emerging Infectious Diseases

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