Week 43, ending Oct. 26
Michigan Disease Surveillance System (as of October 31): MDSS influenza data for the week ending October 26, 2013 indicated that compared to levels from the previous week, individual reports remained steady at low levels, while aggregate reports slightly increased. Individual reports are similar to levels seen during the same time period last year, while aggregate reports are slightly lower.
Emergency Department Surveillance (as of October 31): Emergency department visits due to both constitutional and respiratory complaints increased slightly from levels seen during the previous week.
Emergency department visits from constitutional complaints were similar to levels during the same time period last year, while respiratory complaints were lower. In the past week, there were 10 constitutional alerts in the SW(3), C(4) and N(3) Influenza Surveillance Regions and 5 respiratory alerts in the C(4) and
N(1) Regions.
Sentinel Provider Surveillance (as of October 31): During the week ending October 26, 2013, the proportion of visits due to influenza-like illness (ILI) decreased to 0.8% overall; this is below the regional baseline (1.6%). A total of 61 patient visits due to ILI were reported out of 8,069 office visits. Data were provided by 22 sentinel sites from the following regions: Central (9), North, (2), Southeast (8), and Southwest (3). ILI activity decreased in three regions: C (1.3%), N (0.0%), and SE (0.1%) and increased in one region: SW (0.7%). Please note: These rates may change as additional reports are received.
Hospital Surveillance (as of October 26):As of October 26th, there have been 2 influenza hospitalizations (2 pediatric) within the catchment area.
Laboratory Surveillance (as of October 26): During October 25-26, 1 positive influenza 2009 A/H1N1pdm result was reported by MDCH Bureau of Laboratories. For the 2013-14 season (starting Sept. 29, 2013), MDCH has identified 5 positive influenza results:
Influenza 2009 A/H1N1pdm: 4 (4SE) Influenza A/H3: 1 (1SE)
Influenza-associated Pediatric Mortality (as of October 31): No pediatric influenza-associated influenza mortalities have been reported to MDCH for the 2013-14 season
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