Are you William K Purdy?

Claim your profile

Publications (2)4.57 Total impact

  • [Show abstract] [Hide abstract]
    ABSTRACT: Describe two 2009-H1N1 influenza outbreaks in university-based summer camps and the implementation of an infection control program. 7,906 campers across 73 residential camps from May 21-August 2, 2009. Influenza-like-illness (ILI) was defined as fever with cough and/or sore throat. Influenza A was identified using PCR or rapid-antigen testing. We implemented an infection control program consisting of education, hand hygiene, disinfection, symptom screening, and ILI case management. An initial ILI cluster involved 60 cases across 3 camps from June 17-July 2. Academic Camp-1 had the most cases (n = 45, 14.9% attack rate); influenza A was identified in 84% of those tested. Despite implementation of an infection control program, a second ILI cluster began on July 12 in Academic Camp-2 (n = 47, 15.0% attack rate). ILI can spread rapidly in a university-based residential camp. Infection control is an important aspect of the medical response but is challenging to implement.
    Journal of American College Health 04/2011; 59(5):419-26. · 1.45 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: Little is known about the clinical presentation and course of novel H1N1 influenza in summer camps. To describe the clinical course and evaluate the effect of influenza treatment in a summer camp population. Two large influenza outbreaks occurred in university-based residential camps between May 21 and August 2, 2009. Through active daily surveillance, medical evaluation at symptom onset, and data collection during isolation, we describe the clinical course of a large outbreak of novel H1N1 influenza. Influenza-like illness (ILI) was documented in 119 individuals. Influenza A was confirmed in 66 (79%) of 84 samples tested. Three early samples were identified as novel H1N1. ILI cases had an average age of 15.7 years and 52% were male. Sixty-three were treated with oseltamivir or zanamivir, which was initiated within 24h of diagnosis. Cough, myalgia and sore throat occurred in 69, 64 and 63% of cases, respectively. The highest temperature over the course of illness (T(max)) occurred within 48h after symptom onset in 87.5% of individuals. Average T(max) was 38.4 degrees C (range 36.1-40.2 degrees C). Among confirmed influenza cases, 69% defervesced by 72h and 95% defervesced by 96h. Defervescence at 72h was not different in the treated and untreated groups (p=0.12). Novel H1N1 generally has a mild, self-limited course in healthy adolescent campers. Defervescence occurred within 72h and was unaffected by treatment.
    Journal of clinical virology: the official publication of the Pan American Society for Clinical Virology 03/2010; 47(3):286-8. · 3.12 Impact Factor