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. 2011 Jul;17(7):1293-5.
doi: 10.3201/eid1707.101774.

Viability of Baylisascaris procyonis Eggs

Shira C Shafir  1 , Frank J Sorvillo, Teresa Sorvillo, Mark L Eberhard
Affiliations

Viability of Baylisascaris procyonis Eggs

Shira C Shafir et al. Emerg Infect Dis. 2011 Jul.

Abstract

Infection with Baylisascaris procyonis roundworms is rare but often fatal and typically affects children. We attempted to determine parameters of viability and methods of inactivating the eggs of these roundworms. Loss of viability resulted when eggs were heated to 62°C or desiccated for 7 months but not when frozen at -15°C for 6 months.

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Figures

Figure 1
Figure 1
Viable Baylisacaris procyonis larvae demonstrating intact membrane and impermeability to methylene blue. Original magnification ×40.
Figure 2
Figure 2
Hatched nonviable Baylisascaris procyonis larvae demonstrating uptake of methylene blue. Original magnification ×40.
See this image and copyright information in PMC

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