Clinical Case: ZOONO Pet Oral Spray as an Adjunctive Treatment for Feline Calicivirus Complicated by Chronic Gingivostomatitis

A rescued stray cat presented with marked emaciation, persistent ptyalism (drooling), and refusal to eat upon admission. Oral examination revealed erythematous and ulcerated gingival mucosa, with lesions extending to the oropharyngeal region; food intake was severely compromised by oral pain.

Laboratory testing showed a marked elevation in serum amyloid A (SAA) levels, indicating severe systemic inflammation. Respiratory pathogen PCR returned positive results for both feline calicivirus (FCV) and Mycoplasma spp. The final diagnosis was feline calicivirus infection with concurrent feline chronic gingivostomatitis (FCGS).

Treatment Protocol

Surgical intervention: After completing preoperative work‑up, full‑mouth tooth extraction was performed in conjunction with carbon dioxide laser ablation to remove oral lesions and facilitate mucosal healing.

Systemic pharmacotherapy: Doxycycline was administered for antimicrobial and anti‑infective effects, buprenorphine for analgesia and anti‑inflammation, and feline recombinant interferon omega for antiviral activity, aiming to control systemic inflammation and viral dissemination.

Local oral care: ZOONO Pet Oral Spray was applied topically to the inflamed areas four times daily for two consecutive weeks as an adjunct to postoperative mucosal repair, completing the initial phase of oral care.

Follow‑up Records by Stage

Week 1 of treatment: Following surgery, systemic medications, and adjunctive local spray application, the cat’s appetite gradually improved, and it met discharge criteria.

One‑week post‑discharge recheck: Oral erythema and pain were markedly reduced; no drooling or food refusal was observed.

Long‑term follow‑up: The cat’s oral mucosa had fully returned to a healthy state, body weight progressively increased, and overall physiological status remained stable.

At‑Home Maintenance Recommendations

During the home recovery period, apply ZOONO Pet Oral Spray three times daily to maintain oral hygiene. The product is low‑irritant to oral mucosa, making it suitable for both the postoperative mucosal healing phase and routine long‑term oral care. Owners should continuously monitor the cat’s appetite and mental status and adhere to the scheduled vaccination protocol.

Veterinary Clinical Education: Feline Chronic Gingivostomatitis (FCGS)

Feline chronic gingivostomatitis is a clinically prevalent, multifactorial condition characterized as a persistent, destructive inflammatory disorder of the oral soft tissues, which can cause mucosal ulceration, hyperplasia, and necrosis, with inflammation potentially extending into the submucosal layers.

Predisposing factors include physical or chemical irritants, microbial infections, dental calculus, nutritional imbalances, and systemic underlying diseases. Common associated pathogens and comorbidities include feline immunodeficiency virus (FIV), feline leukemia virus (FeLV), feline herpesvirus (FHV), feline calicivirus (FCV), as well as diabetes mellitus, gastrointestinal diseases, feline eosinophilic granuloma, and renal failure, all of which may increase the risk of developing FCGS.

Affected animals typically present with viscous saliva, severe halitosis, and reduced food intake due to oral pain. On oral examination, the most severe inflammation is usually observed in the gingival mucosa around the premolars and molars, with proliferative lesions developing over time.

Conventional conservative therapy with antibiotics and corticosteroids carries a high recurrence rate. The current clinically effective definitive treatment is full‑mouth tooth extraction, with hyperplastic mucosal tissue managed by carbon dioxide laser ablation. In this case, postoperative daily care with ZOONO Pet Oral Spray—which possesses antibacterial and antiviral properties—helped reduce the proliferation of oral pathogenic microorganisms, accelerate mucosal healing, and ensure sustained long‑term recovery.

Source: https://mp.weixin.qq.com/s/eEBqwFP8-d8q0dixFEAsdw