TABLE 1.
Comparison of original and repeat phage typing results
| Straina | No. of isolates
|
|
|---|---|---|
| Original phage result | Repeat phage result in duplicate | |
| Classical EMRSA-16 | 49 | 52 (includes 3 originally miscellaneous) |
| Variant 29 | 15 | |
| Variant 47 | 10 | |
| Variant 29/47b | 25 (includes 1 originally miscellaneous) | |
| Variant T | 19 | 23 (includes 3 originally miscellaneous and 1 originally variant 47) |
| Variant D | 18 | 23 (includes 5 originally miscellaneous) |
| Miscellaneous | 18 | 6 |
| Total | 129 | 129 |
a
Phage patterns are as follows: classical EMRSA-16, 29inh/52inh/75/77/83A/83C +; 29, 29inh/47; 47, 29inh/47/75; 29/47, 29inh/47 ± 52/75; T, 29inh ± 52inh; D, 29inh/52/42E/47/79/81/83C +; miscellaneous, combinations of the above, with or without additional reactions.
b
Variants 29 and 47 were determined to be the same on repeat phage typing and therefore renamed 29/47.