[Role of the prematurity handicap in the development of severe infections in infants].
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Bacterial Infections↗
Biomedical subjects
A Popescu
Publications and source records attributed to A Popescu.
[Seroprevalence of hepatitis C virus among the multiply transfused].
A study was conducted on 61 polytransfused patients, 24 patients submitted to long lasting parenteral treatments, 116 blood donors and 132 controls. Immuno-enzymatic tests were used for detection of antibodies against hepatitis C virus (HCV). They were found in 56 (91.8%) out of the 61 polytransfused patients, in 5 (4.3%) of the donors, in 5 (20.8%) of the patients with multiple treatments and in 5 (3.7%) controls. The VHB markers were detected at variable rates in all investigated groups. The high rate of seropositivity indicates that hepatitis C is becoming an important public health problem in Romania.
Adult↗
Virological study of some influenza outbreaks in the period January--March 1975.
The virological study of some influenza outbreaks recorded in Romania in the period Jnauary--March 1975 resulted in the isolation of 29 influenza A2 virus strains antigenically close to the strains A2/Port Chalmers 1/73 and A2/England 42/72. The non-homogeneous antigenic structure of the isolates suggests the possible formation of natural hybrids.
Antigens, Viral↗
Investigations on the distribution of HBs antigen subtypes.
The study was performed in 2,054 sera collected from HBsAg-positive acute viral hepatitis (AVH) patients within the first days after onset. HBsAg were subtyped by immunodiffusion (it was possible to specify the antigenic subdeterminant in 1,816 sera) and titrated by counterelectrophoresis. The results were analysed according to the territory and to the patients' sex and age. The overall ad:ay ratio was of 18:82 and zonal differences in subtype ratio were found. A marked predominance of male subjects (57%) among HBsAg-positive AVH patients was observed, especially in younger age groups. Half of the cases could be included in the age groups from 5 to 29 years. Higher ad:ay values were found at low antigen titers.
Adolescent↗