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Focuses on the six-step control program adopted by Schwartz Farms in eliminating the Mycoplasmal pneumonia problems on the farms' several sow sites in Minnesota. Total number of sow sites in Schwartz farms; Relevance of the cleanup drive initiated by producer Mark Schwartz and swine veterinarian Ross Kiehne in the control program; Illustration of the procedure of the six-step control program.

Reports on the advancement of the control program on porcine reproductive and respiratory syndrome (PRRS) virus in Minnesota. Coverage of the project; Names of the veterinarians who head the project; Explanation of Mike Strobel, a veterinarian, on the capacity of the password-protected Web site in identifying herds with or without PRRS virus.

Focuses on the research conducted by Scott Dee and Jeff Zimmerman, members of the National Research Institute PRRS Integrated Program Project, on the role of aerosol in the transmission of porcine reproductive and respiratory syndrome (PRRS) virus among the animals in one farm in the U.S. Explanation of the two researchers on the possible reasons behind the transmission of the virus; Comparison of the highly virulent and mild or avirulent strains of PRRS virus; Underlying mechanism of the French air filtration system in refraining the transmission of the virus. INSET: Iowa Boar Stud Builds Air Filtration Unit.

The article looks at mycoplasma hyosynoviae and mycoplasma hyorhinis in pigs. It notes that the upper respiratory tract is infected by M. hyosynoviae and settles in the tonsil. It further states that M. hyorhinis can have multiple clinical signs including arthritis, polyserositis and rhinitis. It presents several case studies of such infections including one of pigs with respiratory issues and two of pigs with lameness.

Focuses on the prevalence of mycoplasmal pneumonia among animals in the U.S. Characteristics of mycoplasma organism; Clinical manifestation; Reference to incidences relating to the disease.