Brucella pinnipedialis in lungworms Parafilaroides sp. and Pacific harbor seals Phoca vitulina richardsi: proposed pathogenesis.

Brucella spp. were first isolated from marine mammals in 1994 and since have been described in numerous pinniped and cetacean species with nearly global distribution. Microscopic, electron microscopic, or culture results have shown lungworms in harbor seals to be infected with brucellae, suggesting that the lungworms may serve a role in this infection. In this study, we reviewed archived and more recent case material from 5 Pacific harbor seals from Washington State (USA) with evidence of B. pinnipedialis infection in the lungworm Parafilaroides sp. Twenty-two sections of lung containing approximately 220 Parafilaroides sp., stained with an immunohistochemical technique using antibody to B. abortus, showed approximately 80 (36%) infected nematodes. A few brucellae were also present in lung parenchyma in proximity to nematodes. Infection was present in the first- and fourth-stage larvae in the seal lung and intestines, as well as in the male and female reproductive organs of adult nematodes. Infected sperm deposits in the nematode uterus were suggestive of venereal transmission between lungworms. Massive infection of some degenerate adult lungworms and evidence of degeneration of some developing larvae in utero were observed. Based on these observations, we suggest that Parafilaroides sp., rather than the Pacific harbor seal Phoca vitulina richardsi, is the preferred host of B. pinnipedialis infection.

"Operation Child-Safe": a strategy for preventing unintentional pediatric injuries at a Hurricane Katrina evacuee shelter.

INTRODUCTION: Children represent a vulnerable population, and special considerations are necessary to care for them properly during disasters. Comprehensive disaster responses include addressing the unique needs of children during mass-casualty incidents, such as the prevention of unintentional injuries. Early in the morning of 04 September 2005, approximately 1,600 Hurricane Katrina and/or flood survivors from New Orleans, including approximately 300 children, arrived at Camp Gruber, an Oklahoma National Guard base in Eastern Oklahoma. PROBLEM: The primary function of Camp Gruber to train support personnel for the Oklahoma National Guard. This is not a child-safe environment. It was hypothesized that the camp contained numerous child injury hazards and that these hazards could be removed systematically using local child injury prevention experts, thereby preventing unintentional injuries to the displaced children. METHODS: On 08 September, "Operation Child-Safe" was launched by the Pediatric Injury Response Team to identify and remove pediatric injury hazards from Camp Gruber. Injury prevention experts from the Safe Kids Tulsa Area (SKTA) Chapter, the closest pediatric injury prevention group in the region, spearheaded the operation. Several visits were required to remove all of the injury hazards that were identified. RESULTS: Many hazards were identified and removed immediately, while others were addressed in a formal letter to the Camp Gruber Commander for required consent to implement changes. Hazards identified in the camp included, but were not limited to: (1) dangerous chemicals; (2) choking hazards; (3) open electrical outlets; and (4) missing smoke detectors. Bicycle helmets, car seats, strollers, portable cribs, and other safety-related items were passed out to families in need. A licensed daycare facility also was established in order to give the adult guardians a break from constant supervision. Over the course of one month, only one preventable injury (minor head injury) was reported during camp operations, and this particular injury occurred two days before "Operation Child-Safe" was initiated (Day 3 of camp operations). CONCLUSIONS: In the aftermath of an event that displaces large numbers of people, it is likely that children will be exposed to numerous injury hazards. Volunteers with expertise in child injury prevention are needed to make an evacuee shelter safer for children.