TY - JOUR
T1 - Detection and genetic characterization of foot‐and‐mouth disease viruses in samples from clinically healthy animals in endemic settings
AU - Jamal, Syed Muhammad
AU - Ferrari, G.
AU - Hussain, M.
AU - Nawroz, A. H.
AU - Aslami, A. A.
AU - Khan, E.
AU - Murvatulloev, S.
AU - Ahmed, S.
AU - Belsham, Graham
PY - 2012
Y1 - 2012
N2 - A total of 1501 oral swab samples from Pakistan, Afghanistan and Tajikistan were collected from clinically healthy animals between July 2008 and August 2009 and assayed for the presence of foot‐and‐mouth disease virus (FMDV) RNA. The oral swab samples from two (of four) live animal markets in Pakistan (n = 245), one (of three) live animal market in Afghanistan (n = 61) and both the live animal markets in Tajikistan (n = 120) all tested negative. However, 2 of 129 (∼2%) samples from Gondal and 11 of 123 (9%) from Chichawatni markets in Pakistan were positive for FMDV RNA. Similarly, 12 of 81 (15%) samples from Kabul and 10 of 20 (50%) from Badakhshan in Afghanistan were found to be positive. Serotypes A and O of FMDV were identified within these samples. Oral swab samples were also collected from dairy colonies in Harbanspura, Lahore (n = 232) and Nagori, Karachi (n = 136), but all tested negative for FMDV. In the Landhi dairy colony, Pakistan, a cohort of 179 apparently healthy animals was studied. On their arrival within the colony, thirty‐nine (22%) of these animals were found positive for FMDV RNA (serotype A was identified), while 130 (72.6%) had antibodies to FMDV non‐structural proteins. Thus, newly introduced animals may be a significant source of the disease in the colony. Only two animals from the cohort were detected as becoming positive for FMDV RNA during a follow‐up period of 4 months; however, only 10 animals remained negative for anti‐NSP antibodies during this period.
AB - A total of 1501 oral swab samples from Pakistan, Afghanistan and Tajikistan were collected from clinically healthy animals between July 2008 and August 2009 and assayed for the presence of foot‐and‐mouth disease virus (FMDV) RNA. The oral swab samples from two (of four) live animal markets in Pakistan (n = 245), one (of three) live animal market in Afghanistan (n = 61) and both the live animal markets in Tajikistan (n = 120) all tested negative. However, 2 of 129 (∼2%) samples from Gondal and 11 of 123 (9%) from Chichawatni markets in Pakistan were positive for FMDV RNA. Similarly, 12 of 81 (15%) samples from Kabul and 10 of 20 (50%) from Badakhshan in Afghanistan were found to be positive. Serotypes A and O of FMDV were identified within these samples. Oral swab samples were also collected from dairy colonies in Harbanspura, Lahore (n = 232) and Nagori, Karachi (n = 136), but all tested negative for FMDV. In the Landhi dairy colony, Pakistan, a cohort of 179 apparently healthy animals was studied. On their arrival within the colony, thirty‐nine (22%) of these animals were found positive for FMDV RNA (serotype A was identified), while 130 (72.6%) had antibodies to FMDV non‐structural proteins. Thus, newly introduced animals may be a significant source of the disease in the colony. Only two animals from the cohort were detected as becoming positive for FMDV RNA during a follow‐up period of 4 months; however, only 10 animals remained negative for anti‐NSP antibodies during this period.
KW - FMD
KW - Epidemiology
KW - Subclinical infection
KW - Preclinical infection
U2 - 10.1111/j.1865-1682.2011.01295.x
DO - 10.1111/j.1865-1682.2011.01295.x
M3 - Journal article
C2 - 22212855
SN - 1865-1674
VL - 59
SP - 429
EP - 440
JO - Transboundary and Emerging Diseases
JF - Transboundary and Emerging Diseases
IS - 5
ER -