importance of determining the hemolytic pattern

Write a lab report on enumeration of lytic viruses : the plaque assay including the sections: introduction, Materials and Methods, Results and Discussion, and citing peer reviewed sources use this data for results section   Group Number Number of Plaques Dilution Factor of Plate Original Concentration of Phage   1 58 10^3 5.80E+04   2 37 10^3 3.70E+04   3 44 10^3 4.40E+04   4 63 10^3 6.30E+04   5 36 10^2 3.60E+03   6 65 10^3 6.50E+04   7 260 10^2 2.60E+04   8 39 10^3 3.90E+04   9 178 10^2 1.78E+04   10 192 10^2 1.92E+04   11 274 10^2 2.74E+04   12 224 10^2 2.24E+04   Class Average 3.52E+04

Robert Koch developed a set of criteria (postulates) for conclusively demonstrating the aetiology (specific cause) of an infectious disease. Which of the following is not a postulate?     The infectious agent must be isolated and cultured in vitro     The disease is reproduced when a pure culture of the infectious agent is inoculated into a new susceptible host     The infectious agent can be recovered from the experimentally-infected host     The infectious agent is present in most cases of the disease

Based upon your knowledge of the 5 I's of microbiology, which type(s) of tests were used in this study to identify the group A streptococci in the specimens collected? How were the other four I's also used in this study? Give specific examples.