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Table 3 Serotype distribution of S. pneumoniae typified isolates by age group, and antimicrobial susceptibility by antibiotic

From: The status of invasive pneumococcal disease among children younger than 5 years of age in north-west Lombardy, Italy

  

Age group (y)

Resistant isolates according to CLSI criteria†

Serotype

Confirmed IPD

<2

2-4

Penicillin

Erytromicin

Tetracycline

(n = 13)

(n = 7)

(n = 6)

19A

3 (23.1) [2]

2 (28.6) [1]

1 (16.7) [1]

---

1 (7.7)

---

1

2 (15.4) [2]

---

2 (33.3) [1]

---

---

---

7F

2 (15.4)

1 (14.3)

1 (16.7)

---

---

---

19F

2 (15.4)

---

2 (33.3)

---

2 (15.4)

2 (15.4)

14

1 (7.7)

1 (14.3)

---

---

1 (7.7)

---

23F

1 (7.7)

1 (14.3)

---

---

---

---

12B

1 (7.7)

1 (14.3)

---

---

---

---

15C

1 (7.7)

1 (14.3)

---

1 (7.7)

---

1 (7.7)

Total

13 (100)

7 (100)

6 (100)

1 (7.7)

4 (30.8)

3 (23.1)

  1. Data are number (column percentage) of cases. Number of cases having received any pneumococcal vaccine previously within square brackets
  2. Clinical and Laboratory Standards Institute [26.] The overall coverage rate, estimated on typified IPD cases, was 30.8% for PCV7 and 84.6% for PCV13. The coverage rate of PCV7 and PCV13 was, respectively, 28.6% and 71.4% in infants, and 33.3% and 100% in children aged 2–4 years.