Human WNV cases in CA, 2004 – 2015

Human WNV cases in CA, 2004 – 2015 2015 YTD 473 WNND (74%) 38 fatal (records) 1,000 880 800 801 779 561 WNND (70%) 31 fatal 637* 600 479 Number of Cases 445 400 380 379 278 200 158 112 111 ‘06 ‘11 2004 ‘10 ‘12 ‘05 ‘14 ‘09 ‘13 ‘08 2015 ‘07 *As of Nov. 25, 2015 2014: 747 cases YTD 473 WNND = 14,000 to 33,000 non-WNND cases

Human Cases Top 5 Counties Los Angeles 188 Riverside 119 Orange 81 Butte 53 San Bernardino 45

2015 Human Case Incidence* > 5.0 Top 5 Counties Glenn67.0 Butte23.9 Yuba10.9 Tehama 7.8 Riverside 5.3 California 1.7 3.1 – 5.0 1.1 – 3.0 0.1 – 1.0 0 * No. of cases per 100,000 population

D e l N o r t e S i s k i y o u M o d o c S h a s t a L a s s e n T r i n i t y H u m b o l d t T e h a m a P l u m a s B u t t e M e n d o c i n o S i e r r a G l e n n a a d b a u v e Y N S C o l u s a P l a c e r u t L a k e t e r o t n E l D o r a d o Y o l o e S o n o m a m A l p i n e N a p a a r r s o c d a a r a m e A v S a S o l a n o l a C M a r i n S a n T u o l u m n e C o n t r a J o a q u i n M o n o C o s t a S a n F r a n c i s c o A l a m e d a M a r i p o s a S t a n i s l a u s S a n M a t e o S a n t a a r e d M e r c e d C l a r a a M S a n t a C r u z S a n B e F r e s n o n i t o I n y o T u l a r e M o n t e r e y K i n g s S a n L u i s O b i s p o K e r n S a n B e r n a r d i n o S a n t a B a r b a r a L o s A n g e l e s V e n t u r a R i v e r s i d e O r a n g e I m p e r i a l S a n D i e g o WNV Human Casesas of November 25, 2015 YTD 2015: 637 YTD 2014: 74730 Counties WNV Human Cases Relative to 5-Year Total Average (2010 - 2014) No cases in 2015 WNV activity (5-Year Avg <1 case/yr) Normal WNV activity (≤ 5-Year Avg) City of Pasadena Elevated WNV activity (1x-2x 5-Year Avg) City of Long Beach High WNV activity (>2x 5-Year Avg)

WNV environmental surveillance summary* Epidemic conditions, based on MIR (July – Sept) Elevated activity 2015 WNV activity detected *as of November 20

Minimum infection rates in Culex species July – September, 2004 - 2015 Minimum Infection Rate Year

Number of WNV positive mosquito pools, by collection week

Prevalence of WNV in dead birds, 2004- 2015 WNV + chronic % WNV Positive Birds Year

Dead Bird Hotline 2015 Statistics (as of 11/23/15) • 9,409 calls made to the hotline • 12,200 dead bird reports • 3,886 birds were submitted for testing • 3,128 birds were tested for WNV • 1,316 birds tested positive (42%) Dead Bird Report Breakdown • 32% received via phone call (hotline) • 55% received via website (internet reports) • 13% entered directly by agencies via CalSurv

2015: $44,000 from MVCAC to fund three staff (staggered April 15 – Oct. 15, 1 part-time; Sun-Mon, 8 - 4:30) Hotline operators: • Reviewed the information from the caller • Determined the bird species • Evaluated whether a bird met the criteria to be picked up by the local agency for testing • Entered information directly into Gateway • Provided instructions to the caller for pick-up by the local agency or on safe disposal • Notified local agencies immediately of the report or pick-up; faxed dead bird reports to the agency

Hotline Operator Duties con’t • Reviewed reports submitted on-line and notified local agencies of birds suitable for testing • In many instances, contacted the submitter via phone or email for additional information • Responded to requests from local agencies to close zip codes or limit collection to certain bird species • Answered general questions from the public about WNV

WNV Dead Bird SurveillanceA Multi-Agency Collaborative Program • CDPH • Infrastructure (facility costs – including hotline, computers) • Management (coordination, data analysis, website) • ELC funding from CDC (grant management, staffing, testing of dead birds at DART) • UCD / DART • In-kind contributions to testing (staffing, lab supplies) • CalSurv • MVCAC • $45,000 budgeted to maintain program in 2016

Human WNV cases in CA, 2004 – 2015