We published last year a paper [1] about epidemiology of invasive listeriosis in Lombardy according with the data obtained from the enhanced surveillance system which is working in this region since 2006.
Just recently we became aware of a mistake having occurred in the line of Table 1 describing cluster 7. So, we are presenting here the revised Table 1 where it is evident that none of the patients included in cluster 7 was aged >65 years. Likewise, the Discussion contained a wrong sentence about the same Table and, in particular, the data illustrated in the same line as above. We are now confirming that in our study, no specific molecular types could be conclusively associated with maternal-fetal cases, gender, age group or presence/absence of underlying conditions, except for the seven isolates 4b/CC6/ECII belonging to cluster 7 and the isolates grouped in cluster 11. About the isolates belonging to cluster 7 the incorrect text said “which were all recovered from non pregnant patients younger than 65 years”. Now, we are replacing this text with “which were recovered from pregnant women and patients younger than 65 years”.
Table 1
Clinical and isolate subtype data associated with the major
Asc
I PFGE clusters identified in this study
Cluster | Gender (no. of cases) M/Fa | Age (no. of cases) >65 ys/totala | Clinical data | Isolate/subtype data | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
Number of pregnancy related cases | Infection typea | Number. of cases with underlying conditiona,b | No. of isolates | Serotype | ST/CCc | ECd | ||||
Septicaemia | Meningitis | |||||||||
2 | 7/5 | 8/12 | 1 | 9 | 3 | 4 | 13 | 4b | 1 | I |
3 | 5/2 | 3/7 | 1 | 3 | 4 | 6 | 8 | 4b | 1 | I |
4 | 6/5 | 5/11 | None | 10 | 1 | 7 | 11 | 1/2b | 3 | |
5 | 5/2 | 4/7 | 1 | 3 | 4 | 6 | 8 | 4b | 2 | IV |
6 | 1/3 | 1/4 | 2 | 2 | 1 | 3 | 5 | 4b | 4 | |
7 | 1/4 | 0/5 | 2 | 3 | 2 | 5 | 7 | 4b | 6 | II |
8 | 2/2 | 2/4 | 2 | 4 | 0 | 2 | 6 | 1/2a | 29 | |
9 | 5/3 | 3/8 | 3 | 7 | 1 | 6 | 5 | 1/2a | 398 | |
8 | 1/2a | 8 | V | |||||||
11 | 12/18 | 26/30 | 1 | 20 | 8 | 26 | 31 | 1/2a | 38/101 | |
12 | 4/2 | 1/6 | none | 4 | 1 | 5 | 6 | 1/2a | 21 | |
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We regret any inconvenience that our inaccuracies might have caused. We wish to thank Anne Kvistholm Jensen for bringing this issue to our attention.
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