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2011 Contra Costa West Nile Virus Activity

Human Cases: Please see Contra Costa Health Services Web Site

View West Nile Virus Confirmed Cases For 2011 in a larger map

Mosquito Samples: 7

n Date City Cross Streets Species
1 8/17 Oakley West Cypress Road x Ohara Ave. Cx. tarsalis
2 8/29 Knightsen Holland Tract x Old River Cx. tarsalis
3 8/31 Brentwood Sellers Ave. x Chestnut St. Cx. pipiens
4 9/8 Brentwood Sellers Ave. x Chestnut St. Cx. pipiens
5 9/21 Concord Minert Rd. x San Simeon Dr. Cx. tarsalis
6 10/3 Concord Bates Ave. x Mason Cir. Cx. pipiens
7 10/12 Brentwood Sellers Ave. x Chestnut St. Cx. pipiens

Dead Birds: 43

n Date City Cross Streets Species
1 6/29 Walnut Creek Treat Blvd. x Bancroft Rd. American Crow
2 7/5 Pittsburg Loveridge Rd. x Buchanan Rd. Western Scrub Jay
3 7/25 Antioch Deer Valley Rd. x Sand Creek Rd. American Crow
4 8/19 Concord Oak Grove Rd. x Treat Blvd. American Crow
5 8/10 Pleasant Hill Monument Blvd. x Buskirk Ave. American Crow
6 8/10 Alamo Danville Blvd. x Camille Ave. Western Scrub Jay
7 8/23 Concord Treat Blvd. x Oak Grove Rd. American Crow
8 8/29 Walnut Creek Walnut Blvd. x Mountain View Blvd. Western Scrub Jay
9 8/31 Knightsen Delta Rd. x Knightsen Ave. American Crow
10 9/2 Concord Oak Grove Rd. x Monument Blvd. Western Scrub Jay
11 9/2 Brentwood Lone Tree Way x Fairview Ave. American Crow
12 9/6 Walnut Creek Bancroft Rd. x Oak Grove Rd. American Crow
13 8/25 Oakley W. Cypress Rd. x Empire Ave. Western Scrub Jay
14 9/7 Concord Oak Grove Rd. x Treat Blvd. American Crow
15 9/8 Concord Oak Grove Rd. x Minert Rd. American Crow
16 9/5 Brentwood Hwy 4 Bypass x Balfour Rd. Western Scrub Jay
17 9/1 Concord Oak Grove Rd. x Minert Rd. Western Scrub Jay
18 9/12 Pleasant Hill Ellinwood Dr. x Contra Costa Blvd. American Crow
19 9/12 Lafayette Old tunnel Rd. x Pleasant Hill Rd. American Crow
20 9/12 Concord David Ave. x Mohr Ln. Western Scrub Jay
21 9/14 Brentwood Main St. x Sycamore Ave. American Crow
22 9/14 Pleasant Hill Gergory Ln. x Contra Costa Blvd. American Crow
23 9/18 Concord Minert Rd. x Oak Grove Rd. American Crow
24 9/19 Walnut Creek Walnut Ave. x Oak Grove Rd. Western Scrub Jay
25 9/20 Concord Hwy 4 x Hwy 242 American Crow
26 9/22 Concord Farm Bureau Rd. x Concord Blvd. American Crow
27 9/22 Pleasant Hill Contra Costa Blvd. x Taylor Blvd. American Crow
28 9/23 Concord Cowell Rd. x Coventry Rd. Western Scrub Jay
29 9/19 Concord Cowell Rd. x Treat Blvd. Western Scrub Jay
30 9/14 Discovery Bay Starboard Dr. x Willow Lake Rd. Western Scrub Jay
31 9/30 Walnut Creek Oak Grove Rd. x Mitchell Dr. Western Scrub Jay
32 10/1 Concord Willow Pass Rd. x Grant St. American Crow
33 10/4 Pleasant Hill Boyd Rd. x Contra Costa Blvd. American Crow
34 10/4 Concord Olivera Rd. x Port Chicago Hwy American Crow
35 10/5 Concord Treat Blvd. x Clayton Rd. American Crow
36 10/6 Oakley Hwy 4 x Oakley Rd. American Crow
37 10/7 Concord San Jose Ave. x Clayton Rd. American Crow
38 10/11 Concord Clayton Rd. x Farm Bureau Rd. American Crow
39 10/11 Pleasant Hill Viking Dr. x Contra Costa Blvd. American Crow
40 10/12 Oakley W. Cypress Rd. x Empire Ave. American Crow
41 10/14 Concord San Simeon Dr. x Treat Blvd. American Crow
42 10/14 Pleasant Hill Boyd Rd. x Patterson Blvd. American Crow
43 10/14 Concord San Simeon Dr. x Treat Blvd. American Crow

Sentinel Chicken Flocks: 0

#/10 Date Bleed Area

Horses: 0

n Date City Dead/Euthanized

Tree Squirrels: 0

n Date City Cross Streets

 
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