Influenza-like Illness Visits & Influenza Labs as of December 10, 2012
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Influenza-like Illness Visits & Influenza Labs
as of December 10, 2012
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Percent of Flu Doses Administered by Public and Private Sectors, Virginia
Influenza Season 2012-13
Source: VIIS and WebVISION data through week ending 12/7/2012, as of 12/11/2012.• Doses given by the private sector reflect private sector participation in VIIS.
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U.S. Influenza Vaccine Virus Strains, 2012-2013
Changes in the A(H3N2) and B strains, compared with last season’s vaccine:• A/Victoria/361/2011 (H3N2)- replaces
A/Perth/16/2009• B/Wisconsin/1/2010 -Yamagata lineage;
replaces previous Victoria lineage (B/Brisbane/60/2008)
Same: A/California/7/2009 (H1N1)pdm09• This strain was in in the 2009 monovalent
vaccine and the 2010-2011 and 2011-2012 seasonal vaccines
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Vaccines Available for 2012-2013No new vaccine products anticipated this seasonOptions similar to last season:
• Trivalent inactivated vaccine (TIV/traditional shot) - 6 mos. and older
• High dose TIV - 65 yrs. and over• Intradermal TIV - 18 through 64 yrs.• LAIV - healthy, non-pregnant persons 2 through
49 yrs.
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Influenza Vaccination Recommendations
• Everyone 6 months of age and older is recommended to get the flu vaccine every year
• Children 6 months - 8 years of age require 2 doses (administered 4 weeks apart) their first season of vaccination
• Vaccination is especially important for people at higher risk of serious influenza complications, or people who live with or care for them
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Seasonal Flu Surveillance• ED/urgent care visits for influenza-like illness
(ILI)• Laboratory surveillance• Sentinel physicians; DFA/PCR/culture by labs• Influenza Incidence Surveillance Project
(IISP)• Weekly activity level reporting (Oct – May)• Outbreaks• School absenteeism• Influenza-associated pediatric deaths
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Novel Influenza Surveillance Districts notified of any suspect novel influenza occurrences should contact DSI immediately.• Notify Regional Epi • Novel influenza cases
are reportable in VA• Special case report form• Submit specimens for
testing; alert DCLS that a novel virus is suspected
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Novel Influenza Surveillance: H3N2vEnhanced surveillance for cases of H3N2v this seasonPatients meeting both of the following criteria should be
tested:• Fever with cough and/or sore throat (usual ILI definition) • Direct contact with swine within the 7 days preceding onset OR
an epidemiologic link to a confirmed case of influenza A H3N2v infection
If provider interested in testing and/or patient meets criteria:• Ask provider to collect NP swab, place in viral transport media (or
provide a DCLS flu test kit to them) and complete DCLS specimen submission form
• Note outbreak ID: RES989H3N2vSurv12 on the DCLS form• Confer with DSI, through regional epidemiologist to be sure there
is agreement patient warrants testing and ensure that DCLS knows a specimen is on the way
• Submit the specimen to DCLS
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West Nile Virus (WNV) Update• Nationwide WNV disease activity is greater than it has
been since the mid 2000s • As of Dec. 10th, WNV disease has been reported in 29
Virginians from all five health regions of the state• Three WNV-related deaths in Virginia• Neuroinvasive disease reported in 21/29 (72%)
• Last year, 9 reports of WNV disease in Virginians• For 2006 to 2010, 1-5 WNV reports annually
• Best way to avoid WNV is to prevent mosquito bites• Use insect repellent, consider staying indoors during
dusk and dawn, use good screens on windows, empty containers/pools with standing water
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Other Human Arbovirus Activity, 2012
• Eastern Equine Encephalitis (EEE) reported in one Virginian• Portsmouth HD• Not a death• First human case of EEE reported in Virginia
since 2003• La Crosse Encephalitis (LAC) reported in two
Virginians • Both Lenowisco HD• No deaths• Virginia reported one case of LAC disease in
2011 and two cases in 2008
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Fungal Meningitis Investigation – First Steps• Notified by CDC on evening of September 29, 2012
of cases of fungal meningitis potentially associated with exposure to contaminated epidural steroid injections
• Steroids were from three recalled lots of product manufactured by the New England Compounding Center
• Two locations received these products in Virginia – New River Valley Surgery Center and Insight Imaging Roanoke
• Facilities gave VDH patient lists so that each could be contacted to inform them of their potential exposure and ask about symptoms. Facilities also contacted patients themselves.
• Letter sent to SW physicians on October 1.
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Fungal Meningitis Investigation – Two Key Categories of Response• Surveillance of Exposed• 680 exposed to recalled lots of MPA in VA
facilities• ~95% at Roanoke facility• Reside in 10 VA health districts plus 4 other
states• Health departments called weekly unless the
person under doctor’s continuing care for this outbreak
• Case Finding and Reporting• 51 cases, 2 deaths as of December 10, 2012• Median age 64 years; all hospitalized• Working closely with hospitals – infectious
disease specialists, laboratories, infection prevention
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Fungal Infections among Patients Exposed in Virginia by Date of Onset (as of December 10, 2012, n=51)
7/29/1
28/5
/12
8/12/1
2
8/19/1
2
8/26/1
29/2
/129/9
/12
9/16/1
2
9/23/1
2
9/30/1
2
10/7/
12
10/14
/12
10/21
/12
10/28
/12
11/4/
12
11/11
/120123456
Date of Initial Symptom Onset
Num
ber
of C
ases
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Fungal Meningitis Investigation –Key Public Health Activities• Coordination and communication • Local, state, and federal health agencies • Public health and clinical community
• Local health department surveillance and case reporting
• Regional/central office epidemiologists compiling & verifying detailed information, working with DCLS, and reporting to CDC• Central office staff deployed to the region
• CDC Epi-Aid deployed to Virginia – clinical assessment
• Clinician letters and conference calls