1. Hacettepe University, Ankara, Turkey;
2. Health Protection Agency North West, Manchester, United Kingdom;
3. Dicle University, Diyarbakir, Turkey;
4. Firat University, Elazig, Turkey;
5. Dr. Behcet Uz Children’s Hospital, Izmir, Turkey;
6. Mayis University, Samsun, Turkey;
7. Sami Ulus Children’s Hospital, Ankara;
8. Istanbul University, Istanbul, Turkey;
9. Uludag University, Bursa, Turkey;
10. Gaziantep University, Gaziantep, Turkey;
11. Cukurova University, Adana, Turkey;
12. Pediatric Microbiology Laboratory, Ankara