State Medical Institute, Tashkent, Uzbekista
nThe epidemiological survey of 126 foci with patients having acute hepatitis B (AHB) and 120 foci with patients having chronic hepatitis B (CHB) was conducted. The observation of the susceptible members of the family showed that a significantly higher level of infection was found in persons having contacts with CHB patients (44.4±2.3 %) in comparison with the members of the families of AHB patients (33.2±2.3 %). The study revealed that children under 14 years were actively involved into the epidemic process; in these children the highest levels of infection were observed in the families of AHB patients (40.2±3.7 %) and CHB patients (57.1±3.5 %). High detection rate of HbsAg were noted in brothers and sisters in the foci of AHB (42.3±6.4 %) and the foci of CHB (52.3±5.4 %), also in parents: 32.4±5.2 % and 46.5±4.2 %, in children: 28.8±3.4 % and 35.6±3.6 % respectively.
Zh. Mikrobiol. (Moscow), 2003, No. 1, P. 23—26