Canine respiratory viruses

Abstract

-Acute contagious respiratory disease (kennel cough) is commonly described in dogs worldwide. The disease appears to be multifactorial and a number of viral and bacterial pathogens have been reported as potential aetiological agents, including canine parainfluenza virus, canine adenovirus and Bordetella bronchiseptica, as well as mycoplasmas, Streptococcus equi subsp. zooepidemicus, canine herpesvirus and reovirus-1,-2 and -3. Enhancement of pathogenicity by multiple infections can result in more severe clinical forms. In addition, acute respiratory diseases associated with infection by influenza A virus, and group I and II coronaviruses, have been described recently in dogs. Host species shifts and tropism changes are likely responsible for the onset of these new pathogens. The importance of the viral agents in the kennel cough complex is discussed.

Influence of age on bronchoscopic findings in healthy beagle dogs

“…Children have higher percentages of lymphocytes in BALF than adult humans, which may reflect infection with respiratory viruses (Ratjen et al, 1994). Acute respiratory viral infections also occur with high frequency in young dogs, especially those that are unvaccinated (Buonavoglia and Martella, 2007). The dogs in the present study were all vaccinated and were free of clinical respiratory tract disease in the 3 month period preceding the study.…”

Atividade antiviral do extrato de própolis contra o calicivírus felino, adenovírus canino 2 e vírus da diarréia viral bovina

“…Todavia, a eficaz atividade antiviral desse extrato sobre o CAV-2 (Tabela 1) evidencia um potencial que deveria ser levado em consideração, principalmente pelo fato de que não existem medicamentos disponíveis contra esse vírus (BUONAVOGLIA & MARTELLA, 2007) ; ,sa: sem atividade; CC50 = concentração citotóxica 50%; CE50 = concentração efetiva 50%; índice de seletividade IS = CC50/CE50.…”

“…A escolha dos vírus utilizados neste estudo é justificada porque o adenovírus canino tipo 2 (CAV-2) e o calicivírus felino (FCV) são agentes etiológicos de doenças respiratórias nas suas respectivas espécies (BUONAVOGLIA & MARTELLA, 2007;RADFORD et al, 2007), enquanto o vírus da diarréia viral bovina (BVDV) tem sido bastante utilizado como um modelo de estudos de atividade antiviral para o vírus da hepatite C (HCV) (BUCKWOLD et al, 2003). Embora diferentes atividades tenham sido atribuídas à própolis, esta tem sido utilizada desde a antiguidade, no alívio de afecções respiratórias do homem (NETO et al, 2002).…”

Detection and molecular characterization of canine adenovirus type 2 (CAV-2) in dogs with respiratory tract symptoms in shelters in Turkey

“…The development of canine infectious respiratory disease (CIRD), previously known as Kennel Cough, caused by viral agents such as CAV-2, parainfluenza virus, canine respiratory coronavirus, and canine herpes virus, as well as bacterial agents such as Bordotella spp., Mycoplasma spp., and Streptococcus spp. or often with the participation of a few of them (BUONAVOGLIA and MARTELLA, 2007;DECARO et al, 2016;LAVAN and KNESL, 2015).…”