| Summary |
Five strains of Haemophilus paragallinarum isolated in Taiwan from 1975 to 1980 were tested for drug susceptibility. The result showed these strains to be highly susceptibility to Erythromycin, Oxytetracycline, and mixture of Sulfamo-nomethoxine or Sulfadimethoxine.
These strains showed moderate susceptibility to tylosin and streptomycin, and resistance or low susceptibility to sulfadiazine.
There were no significant difference between drug susceptibility of Serotype I and II.
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