Individual variability of the cutaneous larva migrans (CLM) incubation period.

Whether the high variable incubation period of cutaneous larva migrans depends on the parasite or other host factors remains unknown. Two brothers were contaminated simultaneously, but had 15- and 165-day incubation periods, respectively, suggesting a possible influence of host factors. A long incubation period does not rule out cutaneous larva migrans in patients with creeping eruption.