Table 6. Shows key test in the differentiation of the virdidans streptococci. Most species can only be identified to viridans species group. The VP test aids in the identification and differentiation of the viridans streptococcal species and is a key reaction for the S. anginosus group.
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Average Air Traffic Controller Yearly Salary in Puerto Rico. Air Traffic Controllers earn a median salary of $104,480 per year. Salaries typically start from $57,030 and go up to $135,830. These numbers may vary depending on several factors, like level of education, amount of experience, industry, company size and location.