Culiseta melanura and Eastern Equine Encephalitis Historic Population Mean. Current Weekly Mean

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1 VECTOR SURVEILLANCE IN NEW JERSEY EEE, WNV, SLE and LAC Prpard by Lisa M. Rd, Scott Crans and Mark Robson Cntr for Vctor Biology, Rutgrs Univrsity CDC WEEK 39: Sptmbr 23 to Sptmbr 29, 2 Data Downloadd 13:16 pm 1 Octobr 2 This Nw Jrsy Agricultural Exprimnt Station rport is supportd by Rutgrs Univrsity, Hatch funds, funding from th NJ Stat Mosquito Control Commission and with th participation of th Dpartmnt of Halth, Dpartmnt of Agricultur and of th 21 county mosquito control agncis of Nw Jrsy. SITE/Boxs Culista mlanura and Eastrn Equin Encphalitis Inland / Coastal Historic Population Man Currnt Wkly Man Total (Collctd) Tstd* Total Pools (Submittd) Tstd Bass Rivr (Burlington Co.)/1 Coastal na 1.4 (53) 49 (9) 8 EEE Isolation Pools Grn Bank (Burlington Co.)/25 Coastal (459) 417 (15) Corbin City (Atlantic Co.)/25 Coastal Dnnisvill (Cap May Co.)/5 Coastal Winslow (Camdn Co.)/5 Inland Cntrton (Salm Co.)/5 Inland Turky Swamp (Monmouth Co.)/48 Inland (664) 64 (22) Glassboro (Gloucstr Co.)/5 Inland *Including trial run last wk in May. Incomplt, to b updatd. Rmarks: Thr wr no nw dtctions of EEE in Cs. mlanura at th traditional rsting box sits. Thr was an additional positiv pool of Cs. mlanura in th county sits plus 2 additional positiv pools from anothr spcis (s nxt pags). A total of 3 positiv pools hav bn dtctd in Nw Jrsy. To dat 427 Cs. mlanura from 158 pools hav bn tstd from th traditional rsting box sits, with thr additional pools in th systm to b tstd. Svntn positiv pools hav bn dtctd at ths sits, for an MFIR of 4.4. Elvn positiv pools of Cs. mlanura in traps st by individual countis hav bn dtctd for a county sit MFIR of 1.7 (s blow). Ovrall Cs. mlanura MFIR valu for th stat is MFIR

2 Additional Cs. mlanura: Thr hundrd sixty-svn additional pools containing 6455 Cs. mlanura hav bn tstd from othr sits using othr traps in addition to rsting boxs. On additional positiv pool was found in a CO2 trap from Cumbrland County, collctd 19 Sp. A sason total of 11 positiv Cs. mlanura pools from ths sits hav bn dtctd. County Additional Cs. mlanura trappd by countis *traps with positivs indicatd in BOLD. Trap typs* Numbr collctd (pools) Numbr of positivs pools MFIR Atlantic CO 2 18 (1) Burlington CO 2, Othr 4133 (96) 2.48 Cap May Gravid, RB 595 (119) Cumbrland CO 2, Gravid, RB 338 (24) Gloucstr CO 2, RB 39 (95) Monmouth Gravid 9 (2) Ocan CO 2, Gravid, RB (27) Salm CO 2 3 (3) TOTAL 6455 (367) Additional Spcis: Th tabl blow indicats non-cs. mlanura mosquitos tstd for EEE. An additional 22 spcis of mosquitos hav bn tstd. Two positiv pools hav bn dtctd in Culx rraticus, both collctd on 19 Sp, with on in th traditional rsting box sit at Turky Swamp and th othr in Cumbrland County, whr th additional positiv Culista mlanura pool was also dtctd. Culx rraticus is a known nzootic vctor in th southrn US. It is also cosmopolitan in its dit, making it a potntial bridg vctor. Spcis othr than Cs. mlanura Pools Mosquitos Positivs MFIR Ads albopictus 9 41 Ads canadnsis canadnsis Ads cantator Ads japonicus Ads mitchlla 4 6 Ads sollicitans Ads sticticus 1 8 Ads taniorhynchus 1 1 Ads trisriatus 7 8 Ads trivittatus 1 2 Ads vxans 7 83 Anophls bradlyi Anophls crucians 5 39 Anophls punctipnnis

3 Anophls quadrimaculatus Coquillttidia prturbans Culx rraticus Culx pipins Culx rstuans Culx salinarius Culx sp Psorophora columbia 3 17 Psorophora frox 1 5 Stat Total Horss and Humans: To dat, six EEE positiv horss hav bn idntifid, including with th abov: 1) A prsumptiv positiv hors with an unusually arly onst dat of 25 May has bn rportd for Burlington County. Th hors was rportdly vaccinatd in arly May. 2) A scond hors has bn rportd, also from Burlington County. Dat of onst was 22 July, with th 3.9 yo mar uthanizd on th sam dat and no rportd vaccination history. 3) A 3 yo mar from Atlantic County with dat of onst of 1 Aug was uthanizd on th sam day (no vaccination history), 4) a 4 yo mar from Camdn County with dat of onst 18 Aug was uthanizd on sam dat, no vaccination history and 5/6) two 2 yo colts from Camdn County with onst dat of 9 Sp, both uthanizd on 1 Sp, both with no vaccination or travl history. In Burlington County, 3 out of 3 birds did Sptmbr 1 st /2 nd in a flock of ring-nckd phasants (Phasianus colchicus). Thr birds of th 3 wr tstd out of stat and rturnd positiv for EEE. This non-nativ spcis can b suscptibl to EEE ffcts, including hmorrhagic ntritis and sick birds can bcom aggrssiv targts of halthir birds. Horss and Vaccinations: Th fat of unvaccinatd quids rinforcs th ncssity of maintaining a vaccination schdul for arboviruss. For vaccination schduls rcommndd by th Amrican Association of Equin Practics, s:

4 Man Numbr / Box Culista mlanura Population Graphs Coastal BASS RIVER (Burlington Co.) GREEN BANK (Burlington Co.) x o 9 / B r b 6 m u N n a 3 M 2 21 Yar Man Jun July August Sptmbr Octobr CORBIN CITY (Atlantic Co.) 2 27 Yar Man Jun July August Sptmbr Octobr x o B 9 r / b m u 6 N n a 3 M DENNISVILLE (Cap May Co.) 2 35 Yar Man x o r / B b m u N n a M Jun July August Sptmbr Octobr Wk of Collction Wk of Collction Wk of Collction Wk of Collction Inland WINSLOW (Camdn Co.) 2 Jun July August Sptmbr Octobr x o / B 9 r b m u 6 N n a 3 M 3 Yar Man CENTERTON (Salm Co.) 2 27 Yar Man Jun July August Sptmbr Octobr x o 9 r / B b m 6 u N n a 3 M TURKEY SWAMP (Monmouth Co.) 2 9 Yar Man Jun July August Sptmbr Octobr x o / B 9 r b m u 6 N n a 3 M GLASSBORO (Gloucstr Co.) 2 x o B 9 / r b m 6 u N n a 3 M 3 Yar Man Jun July August Sptmbr Octobr Wk of Collction Wk of Collction Wk of Collction Wk of Collction Incrass in populations of Culista mlanura occurrd at Bass Rivr, Grn Bank and Corbin City, whil dcrass continud at all othr sits. Dnnisvill has had no Cs. mlanura rcordd thr for th past two wks. No nw positiv EEE pools in Cs. mlanura occurrd, although Turky Swamp was th sit whr a positiv EEE pool of Culx rraticus was dtctd. = Positiv pool(s) dtctd (rd = mlanura, purpl = othr).

5 EEE in US (2 cumulativ cass): (Black or Rd = prvious + nw rportd cass occurring) - quin: 9(AL) 22(FL) 8(GA) 44(LA) 5(MA) 1(MI) 28(MS) 17(NC) 3(NH) 6(NJ) 2(NY) (SC) 2(VT) 4(WI) - mosquito pools: 9(CT) 2(GA) 3(LA) 288(MA) 5(NH) 3(NJ) 1(NY) 5(RI) 137(VA) 1(VT) - sntinl: 1(AL) 1(DE) 48(FL) 1[2 wild](me) 3(NC) (2 mu NH) 33(VA) - human: 1(FL) 7(MA) 1(NC) 1(VA) 2(VT) Wst Nil Virus Wst Nil in US (2 cumulativ cass): Singl black valus indicat no chang from prvious wk. Black valus / rd valus quals prvious wk/nw totals. Not: Data rportd by all stats should b considrd provisional and subjct to chang. Sourcs for this tabl can b found hr. Mosquito Birds Sntinls Horss Humans Pools Alabama 15 13/21 3/5 2/21 Alaska Arizona 1 134/ /67 Arkansas 43/48 California 9/ / /42 17/2 147/182 Colorado 29 9/1 75/92 Conncticut 231/233 15/17 Dlawar 17/24 9/17 6 DC 2 Florida /194 4/6 4/43 Gorgia 97/ /55 Hawaii Idaho Illinois 97/ / /138 Indiana 2 72/ /61 Iowa 3/14 18/21 14/19 Kansas Kntucky 2 /13 6 Louisiana 2418/ / /281 Main 7 1 Maryland 8/1 1 3/33 Mass. 241/ /2 Michigan 26/3 16/23 3/5 162/178 Minnsota 26 95/ 8 6/61 Mississippi 55/ /2 Missouri 119/ /16 Birds Mosquito Pools Sntinls Horss Humans Montana /5 Nbraska Nvada Nw Hampshir 4 1 Nw Jrsy 117/3 952/ /35 Nw Mxico /31 Nw York 963/975 1/2 62/67 North Carolina 2 6 North Dakota /79 Ohio 1172/6 7/8 79/89 Oklahoma 1 3 5/8 15/154 Orgon 1 58/71 1/2 2/4 Pnnsylvania 3/9 3321/ /23 Rhod Island 4/5 4 South Carolina South Dakota 4/5 77/82 9/1 158/175 Tnnss 3 732/ /25 Txas 166/ / / /1442 Utah Vrmont 1 1 Virginia Washington Wst Virginia 1 238/266 3 Wisconsin 26/ Wyoming /5 7 * Can includ othr spcis (.g., dogs, cows) rportd positiv.

6 Protocol: Nw Jrsy Dpartmnt of Halth (NJDH Public Halth Environmntal and Agricultural Laboratoris, PHEAL) and th Cap May County Dpartmnt of Mosquito Control tsts mosquito pools using RT-PCR Taqman tchniqus. Mosquito Spcis Submittd and Tstd for Wst Nil Virus Tsting through 1 Octobr 2 Spcis Pools Mosquitos Positivs MFIR Ads albopictus Ads atlanticus 1 14 Ads atropalpus 1 23 Ads canadnsis canadnsis Ads cantator Ads grossbcki 2 2 Ads japonicus Ads mitchlla 4 6 Ads sollicitans Ads sticticus 8 5 Ads taniorhynchus Ads trisriatus Ads trivittatus 7 11 Ads vxans Anophls bradlyi Anophls crucians Anophls punctipnnis Anophls quadrimaculatus Coquillttidia prturbans Culx rraticus Culx pipins Culx rstuans Culx salinarius Culx sp Culx trritans 5 Culista mlanura Culista minnsota 1 2 Orthopodomyia signifra Psorophora ciliata 1 1 Psorophora columbia Psorophora frox 16 Psorophora howardii 2 2 Uranotania sapphirina 4 8 Stat Total Rmarks: To dat, thr hav bn 199,719 mosquitos tstd in 9,615 pools from 32 spcis. Currntly, 975 positiv pools hav bn dtctd in Ads albopictus, A. japonicus, A. vxans, Anophls punctipnnis, An. quadrimaculatus, Culx pipins, Mixd Cx. spcis, Cx. rstuans, Cx. salinarius and Culista mlanura. Humans, Horss and Wild Birds: Thirty-fiv human cass hav bn rportd in th following countis: Atlantic (1), Brgn (2), Burlington (2), Camdn (5), Cap May (1), Essx (3), Gloucstr (2), Hudson (1), Mrcr (1), Middlsx (4), Monmouth (2), Ocan (7), Passaic (1) Salm (1) and Somrst (2). DOH notd that a chang in protocol has occurrd to includ WNV rsults from commrcial laboratoris. S for furthr information. Thr positiv WNV horss hav bn rportd to dat: 1) A 11 yo quartr hors from Salm County, with onst of symptoms on 4 th August. Th hors was put down th sam day. Gnrally horss hav ithr an unknown or no vaccination history, but this hors was rportd as vaccinatd. S

7 Numbr of positiv pools In th vry activ yar of 21, th first WNV hors cas had an onst dat of 17 August. 2) A 25 yo glding from Monmouth County, onst of symptoms 14 July, was vaccinatd and is rcovring. 3) An additional Monmouth County hors (2 yo mar) with dat of onst on Sp 15 was uthanizd Sp 17. No vaccination history was rportd. Bird tsting bgan in mid-april. To dat, WNV has bn dtctd in 4 birds out of 286 tstd. WNV was first dtctd in an Amrican Crow (Corvus brachyrhynchos) from Morris County, collctd 9 April. To dat, tsting includs: Amrican Crow (Corvus brachyrhynchos 58/64), Fish Crow (Corvus ossifragus 14/42), unidntifid Crow (Corvus spp. 15/25), Blu Jay (Cyanocitta cristata 31/41), Hawk/Raptor (1/1) and othr avian spcis (5/14). Countis submitting birds ar Atlantic, Brgn, Burlington, Cap May, Cumbrland, Essx, Gloucstr, Huntrdon, Mrcr, Middlsx, Monmouth, Morris, Ocan, Somrst, Sussx and Warrn. 2 Positiv Mosquito pools to dat / Total Mosquito This tim last yar Pools Submittd 952 / 94 (.14) 481 / 623 (.8) 2 Positiv Birds to dat / Total Birds Submittd This tim last yar 117 / 269 (.435) 3 / 11 (.297) Activity, as sn by plotting cumulativ positiv pools (graph blow) has now gon abov 21 lvls. It should b notd that tsting bgan arlir this yar WNV Rsults by County through 1 Octobr 2 County Spcis Pools Mosquitos Positivs MFIR Atlantic Ads albopictus Ads canadnsis canadnsis 1 2 Ads cantator 2 11

8 Ads japonicus 8 32 Ads sollicitans 1 9 Ads taniorhynchus 2 89 Ads trisriatus 5 18 Ads trivittatus 1 2 Ads vxans 7 88 Anophls bradlyi 3 7 Anophls punctipnnis 2 16 Anophls quadrimaculatus 2 5 Coquillttidia prturbans 2 3 Culx rraticus 1 79 Culx spp Culista mlanura Psorophora columbia 2 2 Psorophora frox 2 15 Psorophora howardii 1 1 Brgn Ads albopictus Ads japonicus Ads trisriatus 1 1 Ads vxans 1 4 Anophls punctipnnis 1 1 Anophls quadrimaculatus Culx salinarius Culx spp Burlington Ads albopictus Ads atropalpus 1 2 Ads canadnsis canadnsis Ads cantator 2 3 Ads japonicus Ads mitchlla 4 6 Ads sollicitans 1 9 Ads sticticus 1 8 Ads trisriatus 6 55 Ads trivittatus 1 2 Ads vxans Anophls bradlyi 7 7 Anophls crucians 3 37 Anophls punctipnnis 7 28 Anophls quadrimaculatus 3 11 Coquillttidia prturbans Culx rraticus 1 16 Culx pipins Culx rstuans 4 56 Culx salinarius Culx spp Culista mlanura Orthopodomyia signifra 1 1 Psorophora columbia 3 19 Psorophora frox 1 5 Uranotania sapphirina 1 3 Camdn

9 Ads albopictus Ads japonicus Ads trisriatus 2 6 Ads trivittatus 1 2 Ads vxans 3 7 Anophls crucians 1 1 Anophls punctipnnis 1 2 Culx rraticus 1 1 Culx spp Culista mlanura Uranotania sapphirina 1 3 Cap May Ads albopictus Ads atlanticus 6 9 Ads atropalpus 9 21 Ads canadnsis canadnsis 1 79 Ads cantator Ads japonicus Ads sollicitans Ads taniorhynchus Ads trisriatus Ads vxans 3 73 Anophls bradlyi Anophls punctipnnis Anophls quadrimaculatus Coquillttidia prturbans 6 25 Culx rraticus Culx pipins Culx rstuans Culx salinarius Culx spp Culx trritans Culista mlanura Orthopodomyia signifra Psorophora columbia 5 6 Psorophora frox 2 2 Uranotania sapphirina 2 2 Cumbrland Ads albopictus Ads atlanticus 3 3 Ads canadnsis canadnsis 4 25 Ads cantator 3 11 Ads japonicus Ads trisriatus 9 17 Ads vxans 5 17 Anophls crucians Anophls bradlyi 6 1 Anophls punctipnnis 9 18 Anophls quadrimaculatus 4 4 Coquillttidia prturbans 6 89 Culx rraticus Culx pipins Culx rstuans 11 9 Culx salinarius 15

10 Culx spp. 9 3 Culx trritans 3 3 Culista mlanura Psorophora columbia 2 14 Psorophora frox 3 22 Essx Ads albopictus Ads canadnsis canadnsis 2 2 Ads grossbcki 2 2 Ads japonicus Ads sticticus Ads trisriatus 31 Ads vxans Culx spp Psorophora frox 1 4 Gloucstr Ads albopictus Ads japonicus Ads trisriatus 1 7 Ads vxans 3 Anophls punctipnnis Anophls quadrimaculatus Coquillttidia prturbans 1 2 Culx pipins Culista mlanura Hudson Culx spp Huntrdon Culx spp Mrcr Ads albopictus Ads japonicus Ads trisriatus 5 11 Ads vxans 1 3 Culx rraticus 3 1 Culx pipins Culx rstuans Culx spp Middlsx Ads albopictus Ads japonicus 15 Ads trisriatus 3 14 Culx spp Monmouth Ads albopictus Ads canadnsis canadnsis 9 Ads cantator 8 43 Ads japonicus

11 Ads trisriatus Ads vxans 9 19 Anophls crucians 1 1 Anophls punctipnnis Anophls quadrimaculatus 1 1 Coquillttidia prturbans 4 5 Culx rraticus 11 8 Culx pipins 1 1 Culx salinarius 3 14 Culx spp Culx trritans 1 1 Culista mlanura Psorophora columbia 2 3 Psorophora frox 1 2 Morris Ads albopictus 2 25 Ads japonicus Ads trisriatus 3 14 Ads vxans 1 1 Anophls punctipnnis 3 66 Coquillttidia prturbans Culx spp Ocan Ads albopictus Ads atlanticus 1 2 Ads canadnsis canadnsis Ads cantator Ads japonicus Ads sollicitans 2 2 Ads sticticus 1 1 Ads taniorhynchus 1 1 Ads trisriatus Ads trivittatus 1 2 Ads vxans Anophls bradlyi Anophls crucians 2 1 Anophls punctipnnis 2 2 Anophls quadrimaculatus 4 5 Coquillttidia prturbans Culx rraticus 5 7 Culx rstuans 1 1 Culx salinarius Culx spp Culista mlanura 27 Psorophora columbia 1 1 Psorophora frox 4 4 Psorophora howardii 1 1 Passaic Ads albopictus Ads japonicus Ads trisriatus Anophls punctipnnis 4 15 Coquillttidia prturbans 1 2

12 Culx spp Salm Ads albopictus Ads canadnsis canadnsis 2 6 Ads cantator 1 1 Ads japonicus 1 24 Ads sticticus 1 3 Ads trisriatus 5 6 Ads vxans 13 3 Anophls bradlyi 8 46 Anophls punctipnnis 1 16 Anophls quadrimaculatus Coquillttidia prturbans Culx rraticus Culx pipins 4 26 Culx rstuans 4 18 Culx spp Culista mlanura Culista minnsota 1 2 Psorophora ciliata 1 1 Psorophora columbia 7 5 Psorophora frox 2 21 Somrst Ads albopictus 19 2 Ads canadnsis canadnsis 1 3 Ads japonicus Ads trisriatus 4 42 Ads vxans 1 8 Anophls punctipnnis Culx spp Sussx Ads albopictus 3 3 Ads japonicus 4 45 Coquillttidia prturbans 1 43 Culx pipins 4 59 Culx rstuans Culx salinarius 1 1 Culx spp Culista mlanura 9 15 Union Ads albopictus Ads japonicus 5 64 Ads trisriatus 1 15 Culx spp Warrn Ads albopictus 6 86 Ads japonicus Ads trisriatus Ads trivittatus 3 3 Ads vxans 6 25

13 Anophls punctipnnis Anophls quadrimaculatus 5 5 Coquillttidia prturbans 2 5 Culx spp Culista mlanura 1 1 Grand Total Cumulativ WNV activity in 211. WNV activity to 1 Oct 2. WNV activity last wk, 2. Saint Louis Encphalitis (SLE) through 1 Octobr 2. Nw Jrsy will b slctivly tsting for SLE this yar. SLE has had prvious activity in Nw Jrsy, most notably in 1964 and 1975 (CDC s SLE wbsit), th lattr prompting th survillanc rporting by Rutgrs. SLE is a flavivirus and has a similar transmission pattrn to Wst Nil, with Culx spcis as th prdominant vctors. No pools hav tstd positiv for SLE to dat in 2. County Spcis Pools Mosquitos Positivs MFIR Burlington Ads albopictus 6 17 Ads canadnsis canadnsis Ads cantator 2 3 Ads japonicus Ads mitchlla 4 6 Ads sticticus 1 8 Ads trisriatus 3 3 Ads trivittatus 1 2 Ads vxans 4 65 Anophls bradlyi 1 4 Anophls crucians 3 37 Anophls punctipnnis 2 13 Anophls quadrimaculatus 3 11 Coquillttidia prturbans Culx rraticus 3 71

14 Culx pipins Culx rstuans 3 55 Culx salinarius Culx spp Culista mlanura Psorophora columbia 1 5 Camdn Ads albopictus 7 31 Ads japonicus 4 6 Ads trisriatus 1 5 Anophls punctipnnis 1 2 Culx spp Essx 2 39 Ads albopictus Ads canadnsis canadnsis 2 2 Ads grossbcki 2 2 Ads japonicus Ads sticticus Ads trisriatus 9 22 Ads vxans Culx spp Psorophora frox 1 4 Hudson Culx spp Salm 1 6 Culx spp. 1 6 Grand Total

15 La Cross Encphalitis (LAC) through 1 Octobr 2. Nw Jrsy will b slctivly tsting for La Cross (LAC) virus this yar. Nw Jrsy has had 3 cass of this ncphalitic disas sinc 1964 (s CDC s LAC wbsit). Th mortality is low but lik othr ncphalitids, LAC can hav both prsonal (lasting nurological squla) and conomic impacts. LAC is a bunyavirus with a transmission cycl involving mosquitos such as Ads trisriatus and small mammals such as squirrls and chipmunks. LAC can not only infct Ads albopictus but transovarial transmission was also dmonstratd. (Tsh and Gublr 1975 Laboratory studis of transovarial transmission of La Cross and othr arboviruss by Ads albopictus and Culx fatigans. Amrican Journal of Tropical Mdicin and Hygin 24(5):876-88). No pools tstd positiv to dat for 2. County Spcis Pools Mosquitos Positivs MFIR Burlington 1 39 Ads trisriatus 1 39 Cap May Ads taniorhynchus 1 1 Ads trisriatus Culx spp. 1 2 Orthopodomyia signifra 1 1 Psorophora columbia 1 2 Cumbrland 8 16 Ads trisriatus 8 16 Salm 2 3 Ads trisriatus 2 3 Union 1 15 Ads trisriatus 1 15 Grand Total