**One of the causes of Feline viral rhinotracheitis
**One of the causes of Feline viral rhinotracheitis
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***Viruses and bacteria are involved in the complex. The most frequent aetiologic agent is [[Herpesviridae|FHV-1]], and less frequently [[Caliciviridae|feline calicivirus]] and/or [[Chlamydia and Chlamydophila species|''Chlamydophila psittaci'']] (NB: previously called ''Chlamydia psittaci'' var felis)
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***Viruses and bacteria are involved in the complex. The most frequent aetiologic agent is [[Herpesviridae|FHV-1]], and less frequently [[Caliciviridae|feline calicivirus]] and/or ''[[Chlamydophila psittaci]]'' (NB: previously called ''Chlamydia psittaci'' var felis)
*All three agents infect URT respiratory epithelium, although FHV-1 has the highest affinity for this epithelium
*All three agents infect URT respiratory epithelium, although FHV-1 has the highest affinity for this epithelium
*Feline calicivirus more frequently infects the oral mucosa -> ulcerative stomatitis
*Feline calicivirus more frequently infects the oral mucosa -> ulcerative stomatitis