Centers for Disease Control
- 37 pages
- For Internal Use Only
- For Official Use Only
- July 17, 2009
Novel 2009-H1 N1 Declarations
- WHO: Pandemic Phase 6(11 JUN 2009 1600 EDT)
- Outbreaks in at least one country in > two WHO regions
- USG: Public Health Emergency declared (26 Apr 2009)
- HHS: Downgraded to Phase 1 Awareness (9 May 2009)
To date any evidence of …
Change in epidemiology
• Different age distribution of cases or severe cases from US? NO
• Different profile of pre-existing conditions from US? NoChange in virus characteristics?
• Different virus strain associated with severe cases? NO
• Community spread of oseltamivir-resistant novel 2009-H1N1? NoChange in timing?
• Earlier start to influenza season following novel 2009-Hi Ni introduction? Mixed evidenceChange in health care impact?
• Increase in hospitalizations following novel 2009-Hi Ni introduction? Limited evidence
• Increase in proportion of hospitalized eases in ICU? Limited evidenceChange in transmission?
HH and community attack rates> seasonal influenza??…
…
Port Preparedness Planning
– Contingency plans for conducting entry screening at 19 ports of entry in
progress
- Deadline for completion of contingency plans is August 1
– HHS acquiring 100 surge staff to support 20 quarantine stations
- Commitment to provide surge staff for 1 year
- Estimated duration of surge support activation is 4 weeks
- Surge staff requested to report for duty within 24 hours
- List of surge staff generated through NDMS and will include 5 local staff for each quarantine station
- Projected completion of surge list is July 17
- Identified surge staff will have PHA-type skills set (nurses, EMTs, etc.)
Port surveillance
– 595 ILl cases reported in QARS since June 1, 2009:
- 35-airtravelers
- 5 land travelers
- 555 maritime travelers
…
Genetic and Antigenic Analysis of S. Hemisphere Virus Isolates
• Hemagglutination Inhibition assay shows no change in antigen icity from those isolated in the N. Hemisphere: All crossreact with the A/California/07/2009 vaccine strain.
• All isolates from Southern Hemisphere as of today are Oseltamivir sensitive in functional assay
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