Surveillance Updates

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Updated: 8 min ago

Influenza Surveillance Update, Two weeks ending January 10

Thu, 01/15/2015 - 2:14pm
Marin

During week 53 (December 28-January 3) and week 1 (January 4-10), influenza was circulating in Marin County with influenza-like illness activity remaining elevated (Figure 1) and total influenza tests and specimens testing positive increasing.

Influenza-like illness activity 

Influenza Surveillance Update - Two weeks ending December 27, 2014

Thu, 01/08/2015 - 12:36pm
Marin

During week 51 (December 14-20) and week 52 (December 21-27), influenza-like illness activity began increasing in Marin (Figure 1).  Compared with prior weeks this season, more influenza tests were conducted and more specimens were positive during week 52.  While the percent positive has not increased from prior weeks, this should serve as a reminder to all providers that it’s not too late to discuss and offer immunization to our not yet vaccinated patient population.

Influenza-like illness activity 

Influenza Surveillance Update - Week ending December 13, 2014

Tue, 12/23/2014 - 12:20pm
Marin

During the first eleven weeks of the 2014-2015 influenza season (September 28-December 13), influenza activity in Marin remained minimal and within expected levels for early in the season.

Influenza-like illness activity: 

Influenza Surveillance Update, Two weeks ending February 15th

Tue, 02/25/2014 - 1:47pm
Due to decreasing influenza activity, this is the final report for the 2013-2014 influenza season.  The first report of the 2014-2015 influenza season will be published in October 2014. Marin

Severe influenza: Influenza deaths and ICU admissions for persons under age 65 years are reportable events.  County of Marin Department of Health and Human Services has received reports for the following severe influenza cases in Marin County residents as of 2/24/2014:

Influenza Surveillance Update, Week ending February 1st

Thu, 02/13/2014 - 10:22am
Marin

Severe influenza: Influenza deaths and ICU admissions for persons under age 65 years are reportable events.  County of Marin Department of Health and Human Services has received reports for the following severe influenza cases in Marin County residents as of 1/29/2014:

Influenza Surveillance Update, Week ending January 25th

Wed, 02/05/2014 - 3:42pm
Marin

Severe influenza: Influenza deaths and ICU admissions for persons under age 65 years are reportable events.  County of Marin Department of Health and Human Services has received reports for the following severe influenza cases in Marin County residents as of 1/29/2014:

Influenza Surveillance Update, Week ending January 18th

Wed, 01/29/2014 - 10:17am
Marin

Severe influenza: Influenza deaths and ICU admissions for persons under age 65 years are reportable events.  County of Marin Department of Health and Human Services has received reports for the following severe influenza cases in Marin County residents as of 1/29/2014:

Influenza Surveillance Update, Two weeks ending January 11th

Fri, 01/17/2014 - 9:55am
Marin

Severe influenza: Influenza deaths and ICU admissions for persons under age 65 years are reportable events.  County of Marin Department of Health and Human Services has received reports for the following severe influenza cases in Marin County residents as of 1/22/2014:

Influenza Surveillance Update, Week ending December 28th

Mon, 01/06/2014 - 4:49pm
Marin

Influenza-like illness activity:  Influenza-like illness activity in Marin County from December 22-28 was low.  Discharge data from Kaiser San Rafael, Marin General Hospital, and Novato Community Hospital emergency departments and visits to the Sutter Terra Linda Urgent Care Center showed the percentage of visits associated with influenza-like illness (ILI) increased to 0.99% during week 52.  See Figure 1 below.

Influenza Surveillance Update, Two weeks ending December 21st

Fri, 12/27/2013 - 3:55pm
Marin

Influenza-like illness activity:  Influenza-like illness activity in Marin County from December 8-21 was low.  Discharge data from Kaiser San Rafael, Marin General Hospital, and Novato Community Hospital emergency departments and visits to the Sutter Terra Linda Urgent Care Center showed the percentage of visits associated with influenza-like illness (ILI) increased to 0.83% during week 50 (December 8-14, 2013) and decreased to 0.60% in week 51 (December 15-21).  See Figure 1 below.

Influenza Surveillance Update, Two weeks ending December 7th

Tue, 12/17/2013 - 4:41pm
Marin

Influenza-like illness activity:  Influenza-like illness activity in Marin County from November 24-December 7 was low.  Discharge data from Kaiser San Rafael, Marin General Hospital, and Novato Community Hospital emergency departments and visits to the Sutter Terra Linda Urgent Care Center showed the percentage of visits associated with influenza-like illness (ILI) increased to 0.84% during week 48 (November 24-30, 2013) and decreased to 0.56% in week 49 (December 1-7).  See Figure 1 below.

Influenza Surveillance Update, Two weeks ending November 23rd

Mon, 12/02/2013 - 11:34am
Marin

Influenza-like illness activity:  Influenza-like illness activity in Marin County from November 10-23 was minimal.  Discharge data from Kaiser San Rafael, Marin General Hospital, and Novato Community Hospital emergency departments and visits to the Sutter Terra Linda Urgent Care Center showed the percentage of visits associated with influenza-like illness (ILI) decreased to 0.23% during week 46 (November 10-16, 2013) and 0.17% in week 47 (November 17-23).  See Figure 1 below.

Influenza Surveillance Update, Two weeks ending November 9th

Fri, 11/15/2013 - 3:16pm
Marin

Influenza-like illness activity:  Influenza-like illness activity in Marin County from October 27 - November 9 was low.  Discharge data from Kaiser San Rafael, Marin General Hospital, and Novato Community Hospital emergency departments and visits to the Sutter Terra Linda Urgent Care Center showed the percentage of visits associated with influenza-like illness (ILI) was 0.43% during week 44 (October 27-November 2, 2013), then increased to 0.68% in week 45 (November 3-9).  See Figure 1 below.

Influenza Surveillance Update, Two weeks ending October 26th

Wed, 11/06/2013 - 4:04pm
Marin

Influenza-like illness activity:

  • Influenza-like illness activity in Marin County from October 13-26 was minimal.  Discharge data from Kaiser San Rafael, Marin General Hospital, and Novato Community Hospital emergency departments and visits to the Sutter Terra Linda Urgent Care Center during week 42 (October 13-19, 2013) showed the percentage of visits associated with influenza-like illness (ILI) decreased to 0.28%, then increased to 0.51% in week 43 (October 20-26).  See Figure 1 below.

Influenza Surveillance Update, Two weeks ending October 12th

Mon, 10/21/2013 - 10:50am

This is the first Influenza Surveillance Update of the 2013-2014 influenza season.  The report will be prepared bi-weekly until influenza activity begins to increase, then the report will be prepared weekly.

Marin

Influenza-like illness activity: