ABSTRACT
El autor describe como fue, a los 19 años, vivir en carne propia la revolución política y cultural que fue conocida en 1968 y se anticipó en Rio de Janeiro en 1967.
The author describes his own experience, as a nineteen-year-old adolescent, of the political and cultural revolution. The revolution became known in 1968, despite having started before, in 1967, in Rio de Janeiro.
O autor descreve como foi, aos 19 anos, viver na própria pele a revolução política e cultural que veio a ser conhecida em 1968 e que se antecipava no Rio de Janeiro em 1967.
ABSTRACT
Epidemiological parameters, such as age-dependent force of infection and average age at infection (
) were estimated for rubella, varicella, rotavirus A, respiratory syncytial virus, hepatitis A and parvovirus B19 infections for a non-immunized Brazilian community, using the same sera samples. The for the aforementioned diseases were 8.45 years (yr) [95 percent CI: (7.23, 9.48) yr], 3.90 yr [95 percent CI: (3.51, 4.28) yr], 1.03 yr [95 percent CI: (0.96, 1.09) yr], 1.58 yr [95 percent CI: (1.39, 1.79) yr], 7.17 yr [95 percent CI: (6.48, 7.80) yr] and 7.43 yr [95 percent CI: (5.68, 9.59) yr], respectively. The differences between average ages could be explained by factors such as differences in the effectiveness of the protection conferred to newborns by maternally derived antibodies, competition between virus species and age-dependent host susceptibility. Our seroprevalence data may illustrate a case of the above-mentioned mechanisms working together within the same population.