| prevalence of pseudorabies virus infection and associated infections in six large swine herds in illinois. | sera were collected from 6 large farrow-to-finish swine herds infected with pseudorabies virus (prv) in illinois. all herds were participating in the large herd cleanup study, a usda-initiated project to evaluate the feasibility of eradicating pseudorabies from large farms (greater than 400 sows) by use of a combination of vaccination and management changes. herd size ranged between 425 and 1,500 breeding females. between april and july 1990, sera for measurement of prv antibodies were obtained ... | 1991 | 1651912 |
| leptospirosis: long-term surveillance on an illinois farm. | | 1970 | 5466317 |
| outbreak of leptospirosis associated with swimming. | between july 7 and 18, 1991, five boys from a small town in rural illinois experienced the onset of an acute febrile illness subsequently confirmed as leptospirosis by serologic tests. a cohort study found that swimming in a small swimming hole, steel tunnel pond, was associated with disease (p < 0.01), the attack rate being 28%. leptospira interrogans serovar grippotyphosa was isolated from urine cultures from two of the case patients and from a culture of steel tunnel pond water. a high seropr ... | 1993 | 8417426 |
| serologic survey for selected infectious disease agents in raccoons from illinois. | the determination of serologic titers to infectious organisms is a valuable tool for quantitating exposure to disease organisms. raccoons (procyon lotor) were live-trapped from september 1989 to october 1993 and samples collected from two distinct locations in west-central illinois (usa); a state recreational facility (park) and privately owned farming property (farm). sera were submitted for testing leptospira interrogans (serovars bratislava, canicola, grippotyphosa, hardjo, icterohemmorhagiae ... | 1999 | 10231761 |
| spatial and spatio-temporal clustering of overall and serovar-specific leptospira microscopic agglutination test (mat) seropositivity among dogs in the united states from 2000 through 2007. | leptospirosis is a re-emerging disease of dogs in the united states (u.s.). this paper reports the findings of a retrospective study conducted to determine if seroreactivity to leptospira microscopic agglutination test (mat) among dogs in the u.s. clustered in space and time. the study utilized canine sera submitted to a commercial laboratory for leptospiral mat from january 2000 through december 2007. there were 31,869 serum samples submitted by veterinarians from 3156 zip code locations across ... | 2010 | 20580454 |