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Volume 27, Number 9—September 2021
CME ACTIVITY - Research

Maternal Carriage in Late-Onset Group B Streptococcus Disease, Italy

Alberto BerardiComments to Author , Caterina Spada, Roberta Creti, Cinzia Auriti, Lucia Gambini, Vittoria Rizzo, Mariagrazia Capretti, Nicola Laforgia, Irene Papa, Anna Tarocco, Angela Lanzoni, Giacomo Biasucci, Giancarlo Piccinini, Giovanna Nardella, Giuseppe Latorre, Daniele Merazzi, Laura Travan, Maria Letizia Bacchi Reggiani, Lorenza Baroni, Matilde Ciccia, Laura Lucaccioni, Lorenzo Iughetti, and Licia Lugli
Author affiliations: Azienda Ospedaliero–Universitaria Policlinico, Modena, Italy (A. Berardi, C. Spada, L. Lucaccioni, L. Iughetti, L. Lugli); Istituto Superiore di Sanità, Rome, Italy (R. Creti); Ospedale Pediatrico Bambino Gesù, Rome (C. Auriti); Azienda Ospedaliero-Universitaria Policlinico, Parma, Italy (L. Gambini); Ospedale Civile M. Bufalini, Cesena, Italy (V. Rizzo); Azienda Ospedaliero–Universitaria S. Orsola–Malpighi, Bologna, Italy (M. Capretti, M.L. Bacchi Reggiani); Ospedale Policlinico, Bari, Italy (N. Laforgia); Ospedale Infermi, Rimini, Italy (I. Papa); Azienda Ospedaliero–Universitaria S. Anna, Ferrara, Italy (A. Tarocco); Ospedale Santa Maria della Scaletta, Imola, Italy (A. Lanzoni); Ospedale G. da Saliceto, Piacenza, Italy (G. Biasucci); Ospedale Santa Maria Delle Croci, Ravenna, Italy (G. Piccinini); Azienda Ospedaliero–Universitaria Ospedali Riuniti, Foggia, Italy (G. Nardella); Ospedale F. Miulli, Acquaviva delle Fonti, Italy (G. Latorre); Ospedale Valduce, Como, Italy (D. Merazzi); I; RCCS Materno Infantile Burlo Garofolo, Trieste, Italy (L. Travan); Arcispedale Santa Maria Nuova, Reggio Emilia, Italy (L. Baroni); Ospedale Maggiore, Bologna (M. Ciccia)

Main Article

Table 3

Mother-infant pairs and isolates of group B Streptococcus in study of late-onset disease, Italy*

Pair Maternal isolates
 Infant isolates
 Sequence type Pili island gene content Erythromycin resistance genes
 Tetracycline resistance genes
Urine VR Breast milk Blood CSF ermB ermA mefA/E tetM tetO
Pair 1 X X X ST449 1+2b – – – + –
Pair 2 X X ST17 1+2b – – – + –
Pair 3 X X X ST17 1+2b – – – + –
Pair 4 X X ST17 1+2b – – – – –
Pair 5 X X X X ST17 1+2b – – – + –
Pair 6 X X X ST17 1+2b – – – + –
Pair 7 X X ST17 1+2b – – – + –
Pair 8 X X ST17 1+2b – – – + –
Pair 9 X X X ST17 1+2b – – – + –
Pair 10 X X X ST17 1+2b – – – + –
Pair 11 X X X ST17 1+2b – – – – –
Pair 12 X X X ST17 1+2b – – – – –
Pair 13 X X X ST17 1+2b – – – + –
Pair 14 X X X ST17 1+2b – – – + –
Pair 15 X X ST17 1+2b – – – + –
Pair 16 X X ST17 1+2b – – – + –
Pair 17 X X ST17 2b + – – – +
Pair 18 X X ST17 1+2b – – – + –
Pair 19 X* X† X ST17 2b + – – – +
Pair 20 X X† X X ST17 2b + – – – +

*CSF, cerebrospinal fluid; ST, sequence type; VR, vaginal/rectal; –, negative; +, positive. †Two samples were taken at different times.

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Page created: July 15, 2021
Page updated: August 19, 2021
Page reviewed: August 19, 2021
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