Table 3.
Distribution of emm types and erythromycin-resistant genes in 114 GAS isolates, compared with our previous studies [21, 22]
| emm types | emm subtypes | Count | ermB (n/%) | ermA (n/%) | mefA (n/%) | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2020–2021 | 2019 | 2016–2017 | 2020–2021 | 2019 | 2016–2017 | 2020–2021 | 2019 | 2016–2017 | 2020–2021 | 2019 | 2016–2017 | ||
| emm1.0 | 31 | 89 | 78 | 27/23.68 | 84/31 | 78/26.3 | 0/0 | 2/0.74 | 0/0 | 4/3.51 | 10/3.7 | 2/0.67 | |
| emm12.0 | emm12.0 | 62 | 93 | 139 | 51/44.74 | 85/31.37 | 136/45.79 | 1/0.88 | 3/1.11 | 0/0 | 10/8.77 | 5/1.85 | 1/0.34 |
| emm12.19 | 5 | 22 | 27 | 5/4.39 | 21/7.75 | 27/9.09 | 0/0 | 1/0.37 | 0/0 | 0/0 | 1/0.37 | 0/0 | |
| emm12.21 | 4 | 2 | 2 | 3/2.63 | 2/0.74 | 2/0.67 | 0/0 | 0/0 | 0/0 | 1/0.88 | 1/0.37 | 0/0 | |
| emm12.29 | 3 | 0 | 0 | 3/2.63 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | |
| emm12.37 | 3 | 4 | 8 | 3/2.63 | 4/1.48 | 6/2.02 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | |
| emm12.65 | 2 | 0 | 0 | 1/0.88 | 0/0 | 0/0 | 1/0.88 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | |
| emm12.67 | 5 | 0 | 0 | 4/3.51 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 1/0.88 | 0/0 | 0/0 | |
| emm12.69 | 2 | 13 | 2 | 2/1.75 | 12/4.43 | 2/0.67 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | |
| emm4.0 | 2 | 4 | 1 | 1/0.88 | 2/0.74 | 1/0.34 | 1/0.88 | 1/0.37 | 0/0 | 0/0 | 1/0.37 | 0/0 | |
| emm11.0 | 1 | 0 | 0 | 1/0.88 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | |
| emm75.0 | 3 | 8 | 8 | 3/2.63 | 7/2.58 | 8/2.69 | 0/0 | 1/0.37 | 0/0 | 0/0 | 0/0 | 0/0 | |
| emm89.0 | 3 | 2 | 4 | 3/2.63 | 1/0.37 | 4/1.35 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | 0/0 | |
| Total | 114 | 271a | 297a | 107/93.85 | 243/89.67 | 97/64 | 3/2.63 | 10/3.69 | 0/0 | 16/14.04 | 22/8.12 | 5/1.68 | |
aTotal number of cases in that year, some emm subtypes were not found in the year 2020-2021