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.
Air Traffic Controller Salary. The average pay for an Air Traffic Controller is $84,815 per year. Experience has a moderate effect on income for this job. $38,929 - $148,967.
Source:*U.S. Bureau of Labor Statistics. According to the U.S. Bureau of Labor Statistics (BLS), the average annual salary of an air traffic controller in May 2013 was $118,650. The average annual salary of an air traffic controller employed by the federal government was $122,490 in the same year (ww.bls.gov).