phenylephrine-hydrochloride and Synovitis

A comparison was made between the results of phage and lysogenic typing of S. aureus strains isolated during several outbreaks of staphylococcal infection and S. aureus cultures isolated from the same carriers at different periods. The study of the groups of strains having the same origin showed that the differences in the number of reactions were more pronounced in lysogenic typing than in phage typing. For this reason lysogenic typing can be recommended only for the identification of those strains which cannot be identified with the use of the phages of the International Basic Set. The results of the experiments with induced phages proliferating in a restriction-defective strain indicated that restriction and modification were mainly responsible for the specificity of lytic reactions.

Topics: Animals; Bacteriophage Typing; Bronchi; Carrier State; Chickens; Feces; Female; Food Microbiology; Humans; Infant, Newborn; Infant, Newborn, Diseases; Lysogeny; Mastitis; Nose; Poultry Diseases; Pregnancy; Staphylococcal Food Poisoning; Staphylococcal Infections; Staphylococcus aureus; Staphylococcus Phages; Synovitis

Important populations of Staphylococcus aureus were found to be present on the body surfaces of live poultry originating from flocks without history of staphylococcal disease. Their sized increased considerably until approximately the seventh week of life after which time they were maintained at equally high levels. Significant correlations were found between the populations recovered from superficial wash samples and skin-tissue samples. Similarly the numbers isolated from the nasal cavities were correlated with other surface counts. Low numbers were present in the intestinal tract. Birds with staphylococcal synovitis had higher numbers in all sampling regions. The counts were very high in subjects suffering from staphylococcal dermatitis. Higher rates of positive birds and higher numbers of staphylococci were detected with a whole body sampling method than with a nasal swab technique. The isolates obtained in this study belonged to the S. aureus biotype B which is associated with poultry and pigs.

Topics: Animals; Chickens; Dermatitis; Female; Intestines; Nose; Poultry Diseases; Skin; Staphylococcal Infections; Staphylococcus; Synovitis

Topics: Animals; Arthritis, Infectious; Cattle; Cattle Diseases; Culture Media; Mycoplasma; Mycoplasma Infections; Nose; Synovial Fluid; Synovitis