Outbreaks of Pandemic (H1N1) 2009 and Seasonal Influenza A (H3N2) on Cruise Ship

Details

• Alternative Title:
  Emerg Infect Dis
• Personal Author:
  Ward, Kate A. ; Armstrong, Paul ; McAnulty, Jeremy M. ; Iwasenko, Jenna M. ; Dwyer, Dominic E.
• Description:
  To determine the extent and pattern of influenza transmission and effectiveness of containment measures, we investigated dual outbreaks of pandemic (H1N1) 2009 and influenza A (H3N2) that had occurred on a cruise ship in May 2009. Of 1,970 passengers and 734 crew members, 82 (3.0%) were infected with pandemic (H1N1) 2009 virus, 98 (3.6%) with influenza A (H3N2) virus, and 2 (0.1%) with both. Among 45 children who visited the ship's childcare center, infection rate for pandemic (H1N1) 2009 was higher than that for influenza A (H3N2) viruses. Disembarked passengers reported a high level of compliance with isolation and quarantine recommendations. We found 4 subsequent cases epidemiologically linked to passengers but no evidence of sustained transmission to the community or passengers on the next cruise. Among this population of generally healthy passengers, children seemed more susceptible to pandemic (H1N1) 2009 than to influenza (H3N2) viruses. Intensive disease control measures successfully contained these outbreaks.
• Subjects:
  Adult Aged Child Child, Preschool Disease Outbreaks Female Humans Influenza, Human Influenza A Virus, H1N1 Subtype Influenza A Virus, H3N2 Subtype Male Middle Aged Quarantine Research Ships

  More +
• Source:
  Emerg Infect Dis. 16(11):1731-1737.
• Document Type:
  Journal Article
• Volume:
  16
• Issue:
  11
• Collection(s):
  Emerging Infectious Diseases
• Main Document Checksum:
  urn:sha256:191ff5b60c95a166028f36087e1e2a3a064a2f13fdb40b95cd9268b0edc0ff04
• Download URL:
  https://stacks.cdc.gov/view/cdc/18309/cdc_18309_DS1.pdf
• File Type:
  [PDF - 231.72 KB ]