Use of infrared camera to understand bats' access to date palm sap: Implications for preventing Nipah virus transmission

M. Salah Uddin Khan, Jahangir Hossain, Emily Gurley, Nazmun Nahar, Rebeca Sultana, Stephen P. Luby

Research output: Contribution to journalArticle

Abstract

Pteropus bats are commonly infected with Nipah virus, but show no signs of illness. Human Nipah outbreaks in Bangladesh coincide with the date palm sap harvesting season. In epidemiologic studies, drinking raw date palm sap is a risk factor for human Nipah infection. We conducted a study to evaluate bats' access to date palm sap. We mounted infrared cameras that silently captured images upon detection of motion on date palm trees from 5:00 pm to 6:00 am. Additionally, we placed two locally used preventative techniques, bamboo skirts and lime (CaCO3) smeared on date palm trees to assess their effectiveness in preventing bats access to sap. Out of 20 camera-nights of observations, 14 identified 132 visits of bats around the tree, 91 to the shaved surface of the tree where the sap flow originates, 4 at the stream of sap moving toward the collection pot, and no bats at the tap or on the collection pots; the remaining 6 camera-nights recorded no visits. Of the preventative techniques, the bamboo skirt placed for four camera-nights prevented bats access to sap. This study confirmed that bats commonly visited date palm trees and physically contacted the sap collected for human consumption. This is further evidence that date palm sap is an important link between Nipah virus in bats and Nipah virus in humans. Efforts that prevent bat access to the shaved surface and the sap stream of the tree could reduce Nipah spillovers to the human population.

Original languageEnglish (US)
Pages (from-to)517-525
Number of pages9
JournalEcoHealth
Volume7
Issue number4
DOIs
StatePublished - Dec 1 2010
Externally publishedYes

Fingerprint

Nipah Virus
bat
virus
bamboo
Phoeniceae
sap flow
Bangladesh
drinking
risk factor
lime
Drinking
Disease Outbreaks
Epidemiologic Studies

Keywords

  • bats
  • date palm sap
  • food contamination
  • infrared camera
  • nipah virus
  • transmission

ASJC Scopus subject areas

  • Ecology
  • Health, Toxicology and Mutagenesis

Cite this

Use of infrared camera to understand bats' access to date palm sap : Implications for preventing Nipah virus transmission. / Salah Uddin Khan, M.; Hossain, Jahangir; Gurley, Emily; Nahar, Nazmun; Sultana, Rebeca; Luby, Stephen P.

In: EcoHealth, Vol. 7, No. 4, 01.12.2010, p. 517-525.

Research output: Contribution to journalArticle

Salah Uddin Khan, M. ; Hossain, Jahangir ; Gurley, Emily ; Nahar, Nazmun ; Sultana, Rebeca ; Luby, Stephen P. / Use of infrared camera to understand bats' access to date palm sap : Implications for preventing Nipah virus transmission. In: EcoHealth. 2010 ; Vol. 7, No. 4. pp. 517-525.
@article{d7e7f397277c41c2814c89bee8674d96,
title = "Use of infrared camera to understand bats' access to date palm sap: Implications for preventing Nipah virus transmission",
abstract = "Pteropus bats are commonly infected with Nipah virus, but show no signs of illness. Human Nipah outbreaks in Bangladesh coincide with the date palm sap harvesting season. In epidemiologic studies, drinking raw date palm sap is a risk factor for human Nipah infection. We conducted a study to evaluate bats' access to date palm sap. We mounted infrared cameras that silently captured images upon detection of motion on date palm trees from 5:00 pm to 6:00 am. Additionally, we placed two locally used preventative techniques, bamboo skirts and lime (CaCO3) smeared on date palm trees to assess their effectiveness in preventing bats access to sap. Out of 20 camera-nights of observations, 14 identified 132 visits of bats around the tree, 91 to the shaved surface of the tree where the sap flow originates, 4 at the stream of sap moving toward the collection pot, and no bats at the tap or on the collection pots; the remaining 6 camera-nights recorded no visits. Of the preventative techniques, the bamboo skirt placed for four camera-nights prevented bats access to sap. This study confirmed that bats commonly visited date palm trees and physically contacted the sap collected for human consumption. This is further evidence that date palm sap is an important link between Nipah virus in bats and Nipah virus in humans. Efforts that prevent bat access to the shaved surface and the sap stream of the tree could reduce Nipah spillovers to the human population.",
keywords = "bats, date palm sap, food contamination, infrared camera, nipah virus, transmission",
author = "{Salah Uddin Khan}, M. and Jahangir Hossain and Emily Gurley and Nazmun Nahar and Rebeca Sultana and Luby, {Stephen P.}",
year = "2010",
month = "12",
day = "1",
doi = "10.1007/s10393-010-0366-2",
language = "English (US)",
volume = "7",
pages = "517--525",
journal = "EcoHealth",
issn = "1612-9202",
publisher = "Springer New York",
number = "4",

}

TY - JOUR

T1 - Use of infrared camera to understand bats' access to date palm sap

T2 - Implications for preventing Nipah virus transmission

AU - Salah Uddin Khan, M.

AU - Hossain, Jahangir

AU - Gurley, Emily

AU - Nahar, Nazmun

AU - Sultana, Rebeca

AU - Luby, Stephen P.

PY - 2010/12/1

Y1 - 2010/12/1

N2 - Pteropus bats are commonly infected with Nipah virus, but show no signs of illness. Human Nipah outbreaks in Bangladesh coincide with the date palm sap harvesting season. In epidemiologic studies, drinking raw date palm sap is a risk factor for human Nipah infection. We conducted a study to evaluate bats' access to date palm sap. We mounted infrared cameras that silently captured images upon detection of motion on date palm trees from 5:00 pm to 6:00 am. Additionally, we placed two locally used preventative techniques, bamboo skirts and lime (CaCO3) smeared on date palm trees to assess their effectiveness in preventing bats access to sap. Out of 20 camera-nights of observations, 14 identified 132 visits of bats around the tree, 91 to the shaved surface of the tree where the sap flow originates, 4 at the stream of sap moving toward the collection pot, and no bats at the tap or on the collection pots; the remaining 6 camera-nights recorded no visits. Of the preventative techniques, the bamboo skirt placed for four camera-nights prevented bats access to sap. This study confirmed that bats commonly visited date palm trees and physically contacted the sap collected for human consumption. This is further evidence that date palm sap is an important link between Nipah virus in bats and Nipah virus in humans. Efforts that prevent bat access to the shaved surface and the sap stream of the tree could reduce Nipah spillovers to the human population.

AB - Pteropus bats are commonly infected with Nipah virus, but show no signs of illness. Human Nipah outbreaks in Bangladesh coincide with the date palm sap harvesting season. In epidemiologic studies, drinking raw date palm sap is a risk factor for human Nipah infection. We conducted a study to evaluate bats' access to date palm sap. We mounted infrared cameras that silently captured images upon detection of motion on date palm trees from 5:00 pm to 6:00 am. Additionally, we placed two locally used preventative techniques, bamboo skirts and lime (CaCO3) smeared on date palm trees to assess their effectiveness in preventing bats access to sap. Out of 20 camera-nights of observations, 14 identified 132 visits of bats around the tree, 91 to the shaved surface of the tree where the sap flow originates, 4 at the stream of sap moving toward the collection pot, and no bats at the tap or on the collection pots; the remaining 6 camera-nights recorded no visits. Of the preventative techniques, the bamboo skirt placed for four camera-nights prevented bats access to sap. This study confirmed that bats commonly visited date palm trees and physically contacted the sap collected for human consumption. This is further evidence that date palm sap is an important link between Nipah virus in bats and Nipah virus in humans. Efforts that prevent bat access to the shaved surface and the sap stream of the tree could reduce Nipah spillovers to the human population.

KW - bats

KW - date palm sap

KW - food contamination

KW - infrared camera

KW - nipah virus

KW - transmission

UR - http://www.scopus.com/inward/record.url?scp=80052608675&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80052608675&partnerID=8YFLogxK

U2 - 10.1007/s10393-010-0366-2

DO - 10.1007/s10393-010-0366-2

M3 - Article

C2 - 21207105

AN - SCOPUS:80052608675

VL - 7

SP - 517

EP - 525

JO - EcoHealth

JF - EcoHealth

SN - 1612-9202

IS - 4

ER -