| the use of an immunization information system to establish baseline childhood immunization rates and measure contract objectives. | measuring progress toward national immunization objectives at the local level, although difficult, is becoming more feasible owing to statewide immunization information systems. this article describes how a state immunization program expanded the scope of immunization service contracts with local health departments (lhds) to address the immunization rates among children living within their jurisdictions using the wisconsin immunization registry (wir) to measure achievement of population-based ob ... | 2009 | 19704303 |
| concentration of enteroviruses, adenoviruses, and noroviruses from drinking water by use of glass wool filters. | available filtration methods to concentrate waterborne viruses are either too costly for studies requiring large numbers of samples, limited to small sample volumes, or not very portable for routine field applications. sodocalcic glass wool filtration is a cost-effective and easy-to-use method to retain viruses, but its efficiency and reliability are not adequately understood. this study evaluated glass wool filter performance to concentrate the four viruses on the u.s. environmental protection ... | 2008 | 18359827 |
| lack of evidence for wild poliovirus circulation--united states, 1993. | following the isolation of wild poliovirus type 3 during january-february 1993 among members of a religious community objecting to vaccination in alberta, canada, surveillance for poliomyelitis was enhanced among related communities in the united states (1). in addition, during may-july 1993, a series of surveys was conducted in seven states (iowa, missouri, new york, ohio, pennsylvania, washington, and wisconsin) to determine whether wild poliovirus was circulating or had circulated recently am ... | 1995 | 7799910 |
| strategic viral surveillance of sewage during and following an oral poliovirus vaccine campaign. | | 1967 | 4295281 |