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Volume 24, Number 12—December 2018
Research

Rat Lungworm Infection in Rodents across Post-Katrina New Orleans, Louisiana, USA

Rosalyn C. RaelComments to Author , Anna C. Peterson, Bruno Ghersi-Chavez, Claudia Riegel, Amy E. Lesen, and Michael J. Blum
Author affiliations: Tulane University, New Orleans, Louisiana, USA (R.C. Rael, A.C. Peterson, B. Ghersi-Chavez, A.E. Lesen, M.J. Blum); University of Tennessee, Knoxville, Tennessee, USA (A.C. Peterson, B. Ghersi-Chavez, M.J. Blum); The City of New Orleans Mosquito, Termite, and Rodent Control Board, New Orleans (C. Riegel)

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Table 1

Prevalence of rat lungworm (Angiostrongylus cantonensis), New Orleans, Louisiana, USA, May 2015–February 2017*

Area No. positive/no. trapped (%)
Roof rats Norway rats Cotton rats Rice rats Total
Uptown 16/40 (40) 3/4 (75) – – 19/44 (43)
Lakeview 7/72 (10) 1/1 (100) – – 8/73 (11)
Lakeshore 27/49 (55) 0/1 (0) – – 27/50 (54)
Gentilly 29/64 (45) 8/10 (80) – – 37/74 (50)
French Quarter 3/6 (50) 1/47 (2) – – 4/53 (8)
Bywater 14/20 (70) 6/8 (75) – – 20/28 (71)
Upper 9th 14/55 (25) 10/23 (43) – – 24/78 (31)
Lower 9th 42/112 (38) 71/133 (53) 0/2 (0) – 113/247 (46)
Natural area 5/22 (23) 0/1 (0) 4/17 (24) 0/4 (0) 9/44 (20)
St. Bernard Parish
 3/4 (75)
1/1 (1)
–
 –
 4/5 (80)
Total 160/444 (36) 101/229 (44) 4/19 (21) 0/4 (0) 265/696 (38)

*Prevalence (in parentheses) was computed for each species in each area as the total number of positive rodents divided by the number trapped. Totals represent overall prevalence and number trapped, pooled by neighborhood, species, or both (total positive/total trapped). Roof rats, Rattus rattus; Norway rats, R. norvegicus; cotton rats, Sigmodon hispidus; rice rats, Oryzomys palustris. Dashes indicate no rats were trapped.

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Page created: November 19, 2018
Page updated: November 19, 2018
Page reviewed: November 19, 2018
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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