Читать книгу Infectious Disease Management in Animal Shelters - Группа авторов - Страница 152

FIRD is typically multifactorial, and, like CIRD, recognition of the contributory infectious agents can be very helpful in organizing a response. Moreover, unusual agents, or unusually virulent agents have plagued some shelters. The most commonly recognized agents involved in infections limited to the upper respiratory tract are feline calicivirus (FCV), feline herpesvirus (FHV1), Mycoplasma, Chlamydia, and occasionally B. bronchiseptica (Pesavento and Murphy 2014). Other bacterial organisms such as Streptococcus canis have also and more recently been described in outbreak situations (Pesavento et al. 2007). Nasal swabs can be performed postmortem, and sampling in an outbreak of severe FIRD should include the histological samples described in the general section on respiratory disease. Many diagnostic laboratories now offer PCR panels for the most common organisms associated with FIRD. Nonetheless, the presence of the pathogen does not always imply causation, and concurrent culture and histology can be very helpful in identifying the cause. Gross assessment cannot distinguish among even the most common agents involved in FIRD, however, it is helpful to note the character of the nasal conchae, lungs, and whether or what type of fluid is present within the sinuses.