Record Details

Survivability of highly pathogenic avian influenza virus (H5N1) in naturally preened duck feathers at different temperatures

KRISHI: Publication and Data Inventory Repository

View Archive Info
 
 
Field Value
 
Title Survivability of highly pathogenic avian influenza virus (H5N1) in naturally preened duck feathers at different temperatures
Not Available
 
Creator Karunakaran, A. C.
Murugkar, H. V.
Kumar, M.
Nagarajan, S.
Tosh, C.
Pathak, A.
Rajendrakumar, A. M.
Agarwal, R. K.
 
Subject duck feather
emu feather
H5N1
HPAIV
preen oil
 
Description Not Available
Ducks are the “Trojan Horses” for Asian H5N1 avian influenza viruses (AIV) and attain
carrier status without displaying overt infection. These birds help in the spread
of the virus among the poultry and human population through direct or indirect contact.
Preen oil is the secretion of preen gland of water birds such as ducks. In a process
called preening, the water birds spread preen oil across their feather and body.
Preen oil has been known to play a significant role in the accumulation of various
pathogens including Highly Pathogenic Avian Influenza (HPAI) from water onto feathers.
However, the studies are scarce on the role of preen oil in the survivability of
HPAIV. We conducted a simulative study to analyse the effect of preen oil on the
survivability of the HPAI virus (H5N1) on duck feathers. Duck feather samples along
with relevant controls were spiked with the H5N1 virus at two different initial concentrations
(104 EID50 and 106 EID50), stored at 37°C, 25°C and 10°C temperatures
and tested at regular intervals for percent infectivity by egg culture method and qRTPCR.
The infectivity and viral load were significantly higher in naturally preened duck
feathers in comparison to the three preen oil deficit controls at both low and high initial
concentrations of virus (104 EID50 and 106 EID50). Maximum persistence was seen
at 10°C in naturally preened duck feathers spiked with 106 EID50 concentration of
viruses. It was also seen that depletion of preen oil from duck feathers reduced the
persistence of the virus. These results demonstrate that preen oil plays a significant
role in survivability and protection of HPAIV on duck feathers. This study herein will
present new avenues in understanding one of the epidemiological niches of HPAIV.
ICAR
 
Date 2019-05-21T10:10:29Z
2019-05-21T10:10:29Z
2019-02-01
 
Type Journal
 
Identifier Karunakaran, A. C., Murugkar, H. V., Kumar, M., Nagarajan, S., Tosh, C., Pathak, A., Rajendrakumar, A. M. and Agarwal, R. K. 2019. Survivability of Highly Pathogenic Avian Influenza Virus (H5N1) in naturally preened Duck Feathers at different temperatures. Transbound Emerg Dis. 66: 1306–1313
1865-1674
http://krishi.icar.gov.in/jspui/handle/123456789/19783
 
Language English
 
Relation Not Available;
 
Publisher Blackwell Verlag GmbH