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Comp Immunol Microbiol Infect Dis ; 73: 101567, 2020 Dec.
Article in English | MEDLINE | ID: covidwho-885228

ABSTRACT

The etiology of neonatal diarrhea is multifactorial and remains one of the greatest health problems in sheep livestock farming. Faecal samples from 559 neonatal lambs aged less than 30 days from 30 sheepfolds located in the north-center region of Algeria were screened with pathogen-specific antigen ELISA for Cryptosporidium parvum, Escherichia coli K99, rotavirus, and coronavirus. Of the 559 lambs, 312 (58.81 %), 155 (27.72 %), 72 (12.88 %) and 20 (3.57 %) were positives for C. parvum, E. coli K99, rotavirus and coronavirus antigens, respectively. The prevalence of C. parvum was the highest (p < 0.0001). C. parvum, E. coli K99, rotavirus and coronavirus were observed in 23 (76.66 %), 17 (56.66 %), 9 (30 %) and 3 (10 %) sheepfolds, respectively. Compared to age, the prevalence of C. parvum was highest during the second and third week of age (p < 0.001). In contrast, other pathogens were found to be more frequent in lambs aged ≤7 days (p < 0.001). The number of lambs with diarrhea was 280 (50.09 %) of which 280 (100 %), 127 (45.35 %), 52 (18.57 %) and 10 (3.57 %) were found to be infected with C. parvum, E. coli K99, rotavirus and coronavirus, respectively (p < 0.0001). In various combinations, mixed infections were detected only with C. parvum. This is the first report of C. parvum, E. coli K99, rotavirus, and coronavirus in ≤30-days old neonatal lambs in Algeria. Special attention should be given to the first colostrum feeding, hygiene of the farm, prevention and control measures for a better prevention of neonatal diarrhea in lambs.


Subject(s)
Coronavirus Infections/veterinary , Cryptosporidiosis/epidemiology , Escherichia coli Infections/veterinary , Escherichia coli/classification , Rotavirus Infections/veterinary , Sheep Diseases/epidemiology , Algeria/epidemiology , Animals , Animals, Newborn , Coronavirus Infections/epidemiology , Coronavirus Infections/virology , Cryptosporidium parvum , Escherichia coli Infections/epidemiology , Feces/microbiology , Feces/parasitology , Feces/virology , Rotavirus Infections/epidemiology , Sheep , Sheep Diseases/microbiology , Sheep Diseases/parasitology , Sheep Diseases/virology
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