| relation of mycoplasma pneumoniae seroreactivity, immunosuppression, and chronic disease to legionnaires' disease. a twelve-month prospective study of sporadic cases in massachusetts. | from april 1977 through march 1978, 28 presumptive cases of legionnaires' disease were identified among 432 consecutive candidates having paired sera or tissue samples submitted to the massachusetts public health laboratories. among the subgroup of 209 candidates with documented diffuse pneumonia and temperature of 39 degrees c or above, 24 (11.5%) had legionnaires' disease whereas the diagnostic yield was only four of 223 (1.8%) among the remainder. the case-fatality rate was two of 28 (7%). pa ... | 1979 | 434645 |