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.
For those who choose a different path to attain one of the best-paying jobs, be prepared to exchange paychecks for stress. Air traffic controllers, for example, earn $122,530 annually, but face some of the most stressful working conditions.