21. The most commonly used culture is Lactobacillus delbrueckii bulgaricus in combination with Streptococcus thermophilus. 22. A cavity forms when bacteria _ usually mutans streptococcus _ accumulates on the tooth. 23. The morbid poison is now known as the bacteria called Group A hemolytic streptococcus . 24. To make yogurt, lactobacillus bulgaricus and streptococcus lactic are cultured in the milk. 25. Streptococcus pneumoniae infections kill approximately 1 million children under age 5 worldwide each year.26. Species of " Streptococcus " are classified based on their hemolytic properties. 27. It is a result of an immune reaction to infection by group A streptococcus . 28. Streptococcus zooepidemicus is a Lancefield group C streptococcus.29. Streptococcus zooepidemicus is a Lancefield group C streptococcus . 30. Low was also a noted expert in necrotizing fasciitis due to Group A streptococcus .
