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Our study was based on data collected as part of the NNDSS, which is by nature a passive reporting system that might have resulted in underestimation of cases occurring in the county.
The ABCs program defined a confirmed case of legionellosis as "the isolation of Legionella from respiratory culture, detection of Legionella antigen in urine, or seroconversion (a more than fourfold rise in antibody titer between acute and convalescent sera) to Lp1." Unlike NNDSS, the ABCs program recorded clinical and race data for each patient found to have legionellosis; incidence rates among blacks were found to be higher than among whites per 100,000 individuals: 1.0 vs.
Second, this analysis only included cases reported using case report forms and might not be representative of all cases reported to NNDSS. Finally, supplemental SFR surveillance collects limited clinical information, restricting the ability to evaluate trends and disease severity associated with speciesspecific diagnoses.
Although NNDSS has been essential for monitoring the national burden of pertussis and age-related trends in disease over time, data are of insufficient detail and consistency to answer reliably the many urgent questions relevant to public health.
An analysis of cases reported in NNDSS during January 2012-June 2015 demonstrated that the risk for meningococcal disease among MSM (0.56 cases per 100,000 population) was four times that among other men (0.14) (1).
We analyzed NNDSS data confirmed by KCDC and classified all reported cases into 2 groups according to residential area.
We describe disease-specific trends in demographic characteristics and geographic and seasonal distribution of selected conditions caused by critical biologic agents reported to NNDSS. These diseases and conditions include anthrax, botulism, brucellosis, cholera, plague, tularemia, and selected viral encephalitides.
In the United States, 16 vectorborne diseases are reportable to state and territorial health departments, which are encouraged to report them to the National Notifiable Disease Surveillance System (NNDSS).
To improve the usability, availability, quality, and timeliness of surveillance data as part of the CDC Surveillance Strategy (1), CDC now provides users a convenient way to access notifiable infectious and noninfectious disease data through the National Notifiable Diseases Surveillance System (NNDSS) website.
To improve the usability, availability, quality, and timeliness of surveillance data as part of the CDC Surveillance Strategy (1), CDC will provide users a convenient way to access notifiable infectious and noninfectious disease data through the National Notifiable Diseases Surveillance System (NNDSS) website.
metropolitan areas, and five territories report basic demographic information to the National Notifiable Diseases Surveillance System (NNDSS) for all cases of legionellosis, which comprises two distinct clinical presentations: Pontiac fever, a mild influenza-like illness, and Legionnaires' disease.
System (NNDSS) did not receive electronic data about incident cases
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