Evaluation of relationship between Rotavirus and Coronavirus infections with calf diarrhea by capture ELISA

Abstract

Rotavirus and Coronavirus are two main causes of severe diarrhea in human infants and many animal species worldwide. Calves up to 3 months old can be affected by these viruses. The importance of these viruses in cattle industry is due to substantial economic loss, treatment costs, and reduced growth rates in beef and dairy calves. Mixed infections caused by Rotavirus and Coronavirus can lead to severe form of diarrhea. In present casecontrol study, 261 samples of healthy and diarrheic calves from farms around Mashhad were collected. These samples were tested by antigen-capture enzyme-linked immunosorbent assay (Bio-X diagnosis kit). The results showed that the prevalence of Rotavirus and Coronavirus infection in diarrheic calves is 26.98% and 3.17%, respectively. Also, there was no significant relationship between infection with Rotavirus, Coronavirus, and diarrhea in the studied population.

Genotyping and determining the distribution of prevalent G and P types of group A bovine rotaviruses between 2010 and 2012 in Iran

“…In these studies, rotavirus was detected in 30-40% of stool samples collected from normal and/or diarrheic calves (Badaracco et al, 2012;Dhama et al, 2009;Fukai et al, 2002). In Iran, several studies have been carried out to determine the prevalence of BRVA infection in some provinces such as Fars (29-33%) (Badiei et al, 2010), Razavi Khorasan (26.9-29.5%) (Mayameei et al, 2010;Mohammadi et al, 2012), Tehran (57.4%) (Ghorbanpour et al, 2004), Markazi (34%) (Ghaemmaghami et al, 1999) and West Azarbaijan (28.4%) (Morshedi, 2004).…”

“…Previous epidemiologic studies have indicated a high prevalence of bovine RVA infection in dairy farms of Iran (Badiei et al, 2010;Ghorbanpour et al, 2004;Mayameei et al, 2010;Mohammadi et al, 2012). However, according to our knowledge, there has not been any broad study conducted to determine the common bovine G and P genotypes circulating in Iran's dairy farms, yet.…”

Estudo longitudinal da infecção por enteropatógenos em bezerros neonatos, com diarreia, sob diferentes estratégias de aleitamento

“…A patogênese do Rotavírus depende da sua virulência e da idade do bezerro, pois bezerros neonatos possuem lenta reposição de enterócitos, células onde o vírus se replica, ficando mais suscetíveis à doença (Dodet et al 1997). Mayameei et al (2010) sugerem que a ocorrência de rotavirose é maior na terceira semana, devido aos anticorpos colostrais e a imunidade local presente principalmente na primeira semana de vida e um pouco na segunda, diminuindo a frequência de diarreia por rotavirose neste período.…”

Molecular detection of Clostridium perfringens toxinotypes, Enteropathogenic Escherichia coli, rotavirus and coronavirus in diarrheic fecal samples of neonatal goat kids

“…a previously reported prevalence for BCV was 11.76% from clinical diarrheic calves aged below 3 months (raI et al, 2011). a prevalence rate of 3-20% has been recorded for coronavirus in calf diarrhea (MaYaMeeI et al, 2009). In the present study mixed infections of various enteric pathogens were studied to identify their synergistic role in causing neonatal diarrhea and mortality in goat kids.…”