NSW Arbovirus Surveillance & Vector Monitoring Program
Griffith
Mosquito/Chicken Results

Nearby Locations

Leeton Deniliquin Forbes

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News & Comments

26/4/99: All sites had low numbers. The season is over and Dave can go on holidays!

19/4/99: All sites had low numbers. All chickens tested negative for flaviviruses from both the Hanwood and Barren Box flocks.

13/4/99: Site 1 and 2 had low numbers. Site 3 collected high numbers (127), with 76 Cx. australicus. All chickens tested negative for flaviviruses from both the Hanwood and Barren Box flocks.

5/4/99: High numbers (189) continue from site 1, with 109 Cx. annulirostris. Site 2 had medium numbers (81), with 43 Cx. annulirostris. Low numbers were trapped from site 3. All chickens tested negative for flaviviruses from both the Hanwood and Barren Box flocks.

29/3/99: Site 1 had high numbers (296), with 232 Cx. annulirostris. Numbers were low at site 2 and 3. All chickens tested negative for flaviviruses from both the Hanwood and Barren Box flocks.

22/3/99: Numbers continue to be down and are below average. Site 1 had medium numbers (66), with 64 Cx. annulirostris. Low numbers were collected at site 2. Site 3 had medium collections (69), with 67 Cx. annulirostris. All chickens tested negative for flaviviruses from both the Hanwood and Barren Box flocks.

16/3/99: Numbers are well down on the previous weeks, both sites 1 and 3 had low numbers. Site 2 had high collections (206), with 116 Cx. annulirostris. All chickens tested negative for flaviviruses from both the Hanwood and Barren Box flocks.

8/3/99: All chickens tested negative for flaviviruses from both the Hanwood and Barren Box flocks.

7/3/99: Site 1 had high numbers (717), with 530 Cx. annulirostris.  Very high numbers (1522) continue from site 2, with 188 An. annulipes and 1329 Cx. annulirostris. Site 3 had a high mosquito collection (253), with 221 Cx. annulirostris.

1/3/99: All chickens tested negative for flaviviruses from both the Hanwood and Barren Box flocks.

28/2/99: Numbers were high (638) at site 1, with 600 Cx. annulirostris. Very high numbers (2490) were trapped at site 2, with 2085 Cx. annulirostris. Site 3 had high collections (146), with 139 Cx. annulirostris. One Sindbis and one Kunjin was isolated from Cx. annulirostris collected from Willbriggie.

22/2/99: All chickens tested negative for flaviviruses from both the Hanwood and Barren Box flocks.

21/2/99: Overall mosqutio numbers have dropped; Site 1 had medium collections (89), with 66 Cx. annulirostris. High numbers (113) were captured from site 2, with 66 An. annulipes and 47 Cx. annulirostris. Site 3 had high collections (660), with 527. One SIndbis was isolated from Cx. annulirostris collected at Barren Box.

15/2/99: All chickens tested negative for flaviviruses from both the Hanwood and Barren Box flocks.

14/2/99: High collections (1165) were made from site 1, with 1143 Cx. annulirostris. Numbers were very high (2934), with 2535 Cx. annulirostris. Site 3 had very high mosquito collections (1143), with 998 Cx. annulirostris. One Sindbis isolate was made from Cx. annulirostris collected at Willbriggie (site 2).

9/2/99: All chickens tested negative from both the Hanwood and Barren Box flocks.

7/2/99: Numbers have dropped substantially from the previous week. Low numbers (29) were collected at site 1. Site 2 had high numbers (963), with 843 Cx. annulirostris. Site 3 had high collections (499), with 477 Cx. annulirostris.

1/2/99: All chickens tested negative from both the Hanwood and Barren Box flocks.

31/1/99: Site 1 had very high mosquito numbers (1845), with 1730 Cx. annulirostris. Extraordinary numbers (10644) were collected at site 2, with 4621 An. annulipes and 5960 Cx. annulirostris. Site 3 had high numbers (574) with 545 Cx. annulirostris. Two isolates were made from Cx. annulirostris; one Kokobera and one Flavivirus.

25/1/99: All chickens tested negative from both the Hanwood and Barren Box flocks.

24/1/99: High numbers (115) were collected at site 1, with 107 Cx. annulirostris. Site 2 had high mosquito collections (380) with 362 Cx. annulirostris, although the totals were well below the average of 3519. Site 3 had high numbers (660), with 631 Cx. annulirostris.

18/1/99: All chickens tested negative from both the Hanwood and Barren Box flocks. Very high mosquito collections (6639) from site 2, with 4955 Cx. annulirostris. 

17/1/99: Very high numbers (1380) were collected at site 1, with 1319 Cx. annulirostris. Site 3 had high collections (826), with 750 Cx. annulirostris. 

12/1/99: All chickens tested negative from both Hanwood and Barren Box, for the initial bleed.

10/1/1999: Very high numbers (2036) from site 1, with the majority (1826) being Cx. annulirostris. Site 2 had very high mosquito collections (4916) with 3264 An. annulipes and 1595 Cx. annulirostris. Site 3 had very high collections (1319) with 1063 Cx. annulirostris. Three isolates of Sindbis were made from mosquitoes collected this week: 2 from Site 2 (Willbriggie), 1 each from An. annulipes and Cx. annulirostris; and 1 isolate from Site 1 from Cx. annulirostris.

3/1/1999: Very high collections (2967) were made at site 1, with 2914 Cx. annulirostris. Site 2 had very high mosquito collections (1871), with 1788 Cx. annulirostris. Site 3 had very high collections (1991) with 1653 Cx. annulirostris. There were 3 isolates of Sindbis; 2 from Hanwood (both from Cx. annulirostris) and 1 from Barren Box (again Cx. annulirostris).

27/12/98: Very high numbers (1263) were collected at site 1, with 1069 Cx. annulirostris and 185 An. annulipes. Site 2 had  high numbers (658), with 564 Cx. annulirostris. Site 3 had high collections (123) with 101 Cx. annulirostris. 

21/12/98: Collections were high (943) at site 1, with 842 Cx. annulirostris. Site 2 had high collections (482), with 446 Cx. annulirostris. Site 3 had very high collections (1898), with 820 An. annulipes and 1059 Cx. annulirostris. There was one isolate of Sindbis from Site 2 (Willbriggie) and this was from Cx. annulirostris. There was also one Sindbis isolate and this was from Site 3 (Barren Box), from An. annulipes.

13/12/98: High numbers (469) from site 1, although around half the average, Cx. annulirostris accounted for 459 of the sample. Site 2 also had high numbers (591) with 525 Cx. annulirostris. Site 3 had very high (1011) collections, with 541 Cx. annulirostris and 459 An. annulipes.

6/12/98: Close to average collections at site 1 with 581 mosquitoes and 478 Cx. annulirostris. Site 2 were down on the previous week with a total of 209 mosquitoes and 187 Cx. annulirostris. High numbers (1169) were collected at site 3 (Barambox Swamp), with 557 An. annulipes and 607 Cx. annulirostris.

29/11/98: Collections at site 1 close to 'normal' with a total of 538 mosquitoes and 470 Cx. annulirostris. Collections at site 2 were high (390) but still below average, with 355 Cx. annulirostris.

22/11/98: Numbers (128) from site 1 are still high but considerably down on the previous week and the long term average (489) for this time of the year. There were 93 Cx. annulirostris collected at site 1 from this week. Low number (50) were collected from site 2.

15/11/98: Two Ross River viruses were isolated at site 1 from this week, one each from An. annulipes  and Cx. annulirostris. Numbers from site 1 are very high this week with 1010 mosquitoes collected, several times greater than the average of 140. The majority (868) were Cx. annulirostris (compare this with the long term Cx. annulirostris average of 52).  Site 2 also had high collections with 549 mosquitoes with 447 Cx. annulirostris.

8/11/98: High numbers (381) of mosquitoes collected from site 1 (the long term total average is 150) and 189 were Cx. annulirostris (73 being the long term Cx. annulirostris average). Site 2 also had numbers much greater than average with a total of 937 and 737 Cx. annulirostris.

1/11/98: One Ross River virus was isolated from Cx. annulirostris  collected at site 2 during this week. High numbers (233) of mosquitoes collected from site 1, which is well above the location average of 92, but only 10 Cx. annulirostris were trapped. High numbers (763) also at site 2 and well above average, with 196 An. annulipes, 275 Cx. annulirostris and 276 Cx. australicus.

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