31. Streptococcus pneumoniae : A leading cause of pneumonia as well as middle-ear infections.32. During the study, researchers discovered six toxins caused by Streptococcus that were previously unknown. 33. The CDCs " Streptococcus pneumoniae" 34. Another reason appears to be a lessening of the virulence or invasiveness of Streptococcus pyogenes. 35. Streptococcus suis has also been identified as the most common cause of meningitis in Vietnam.36. Air sacculitis is similar to Streptococcus i . e . strep throat in Homo sapiens. 37. At one point Bea contracts a streptococcus infection while he is gone and nearly dies. 38. Before 1980, the authors note, 99 percent of streptococcus organisms were antibiotic-sensitive. 39. In addition, doctors have seen an epidemic of Streptococcus pneumoniae that is resistant to penicillin. 40. The shift is worrisome because E . coli bacteria can be more deadly than streptococcus germs.