close up of a black cat with a flu and a yellow runny nose. yellow snot in cats infected with the flu virus feline calicivirus or

allergy animal bengali black breathing breed calicivirus care cat cats chronic clinical close congested congestion coryza crossbreed discuss disease domestic feline flu health herpes illness infected infection inflamed inflammation influenza mucous mucus muzzle nasal nose pet problem respiratory rhinitis runny sick sinusitis sneezing snot snotty stuffy suffer tear thai virus watery yellow