penicillin 96 0 4 ≤0.06–8 ≤0.06 ≤0.06     amoxicillin/clavulanic acid 100 0 0 ≤0.06–0.25 ≤0.06 0.12     piperacillin/tazobactam 100 0 0 ≤0.12–≤0.12 ≤0.12 ≤0.12     cefoxitin 100 0 0 ≤0.12–1 ≤0.12 ≤0.12     cefotetan 100 0 0 ≤0.12–4 ≤0.12 ≤0.12     ceftriaxone 100 0 0 ≤0.12–4 ≤0.12 ≤0.12     clindamycin 100 0 0 ≤0.06–≤0.06 ≤0.06 ≤0.06     imipenem 100 0 0 ≤0.06–0.12 ≤0.06 ≤0.06     meropenem 100 0 0 ≤0.06–≤0.06 ≤0.06 ≤0.06     metronidazole 100 0 0 ≤0.06–0.5 0.12 0.25 

hile Fusobacterium species are generally resistant to vancomycin and susceptible to kanamycin and colistin.

Antibiotic susceptibility patterns of thirty-seven isolates of Fusobacterium necrophorum (21 biotype A and 16 biotype B) from liver abscesses of feedlot cattle were determined. These isolates were generally susceptible to penicillins, tetracyclines (chlortetracycline and oxytetracycline), lincosamides (clindamycin and lincomycin), and macrolides (tylosin and erythromycin) but resistant to aminoglycosides (kanamycin, neomycin, gentamycin and streptomycin), ionophores(except narasin), and peptides (avoparcin, polymixin, and thiopeptin). Differences in antibiotic sensitivity patterns were observed between the two biotypes

group B streptococci to be sensitive to ceftriazone in vitro and that, in the low dosage used, ceftriaxone effectively eradicates group B streptococcal bacteraemia and meningitis in infant rats.

Pharyngitis — Gonococcal infection of the pharynx is usually acquired by oral sexual exposure [42]; it is acquired more efficiently by fellatio than by cunnilingus [27,42]. Based on studies of women presenting to sexually transmitted infection (STI) clinics, the prevalence of pharyngeal gonorrhea has been estimated at two to six percent [43,44]. In a study of over 14,000 men who have sex with men (MSM) presenting to STI clinics in the United States, eight percent tested positive for pharyngeal gonococcal infection [34].The majority of oropharyngeal infections with N. gonorrhoeae are asymptomatic, although sore throat, pharyngeal exudates, and/or cervical lymphadenitis are present in some cases. In a study of 192 men and women seeking care for sore throat in a general medicine setting, one percent overall had a positive throat culture for N. gonorrhoeae [45]. Although bacterial concentrations in the pharynx are generally lower than in the rectum and genitals, the pharynx is thought to be the site where horizontal transfer of gonococcal antimicrobial resistance genes commonly occurs [46].