TY - JOUR
T1 - Hepatitis b virus infection in native versus immigrant or adopted children in italy following the compulsory vaccination
AU - Cascio, Antonio
AU - Barbera, Cristiana
AU - Cristina, null
AU - Mazzoni, null
AU - Vajro, null
AU - Mazzoni, null
AU - Crivellaro, null
AU - Verucchi, null
AU - Mazzoni, null
AU - Bragetti, null
AU - Maccabruni, Anna
AU - Resti, null
AU - Valentini, null
AU - Marcellini, Matilde
AU - Clemente, Maria Grazia
AU - Bortolotti, Flavia
AU - Nebbia, null
AU - Zancan, Lucia
AU - Balli, Fiorella
AU - Cascio, null
AU - Losurdo, null
AU - Giacchino, Raffaella
PY - 2001
Y1 - 2001
N2 - BACKGROUND: Compulsory vaccination of children against hepatitis B virus (HBV) infection was introduced in Italy in 1991. PATIENTS AND METHODS: To evaluate the current importance of pediatric HBV infection, we studied 359 HBsAg-positive children admitted to 16 centers in Italy from 1991 to 1998. 185 patients were natives of Italy and 174 (39 immigrants and 135 adopted) came from highly endemic countries (eastern Europe: 60.9%, Asia: 16.7%, Africa: 14.9% and Central and South America: 5.7%). RESULTS: Transaminase Levels were moderately altered in both Italian (mean 134 UI/L) and foreign children (mean 168 UI/L). In total, 77% of ItaLian children and 88% of foreign children tested HBeAg positive. High transaminase levels and HBeAg positivity were more frequent in adopted children. Follow-up of 317 patients showed that the incidence of HBeAg/anti-HBe serum conversion was similar in all cohorts, but in adopted children it occurred at an earlier age and was associated with HBsAg clearance in 5%. CONCLUSION: HBV is not frequent in Italian children today, but it is common among children coming from highly endemic areas. The vaccination of nonimmune native populations must be strongly recommended.
AB - BACKGROUND: Compulsory vaccination of children against hepatitis B virus (HBV) infection was introduced in Italy in 1991. PATIENTS AND METHODS: To evaluate the current importance of pediatric HBV infection, we studied 359 HBsAg-positive children admitted to 16 centers in Italy from 1991 to 1998. 185 patients were natives of Italy and 174 (39 immigrants and 135 adopted) came from highly endemic countries (eastern Europe: 60.9%, Asia: 16.7%, Africa: 14.9% and Central and South America: 5.7%). RESULTS: Transaminase Levels were moderately altered in both Italian (mean 134 UI/L) and foreign children (mean 168 UI/L). In total, 77% of ItaLian children and 88% of foreign children tested HBeAg positive. High transaminase levels and HBeAg positivity were more frequent in adopted children. Follow-up of 317 patients showed that the incidence of HBeAg/anti-HBe serum conversion was similar in all cohorts, but in adopted children it occurred at an earlier age and was associated with HBsAg clearance in 5%. CONCLUSION: HBV is not frequent in Italian children today, but it is common among children coming from highly endemic areas. The vaccination of nonimmune native populations must be strongly recommended.
UR - http://hdl.handle.net/10447/384522
M3 - Article
SN - 0300-8126
VL - 29
SP - 188
EP - 191
JO - Infection
JF - Infection
ER -