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A rubella serological survey of 476 individuals selected by cluster sampling technique from Caieiras, a small town located in the outskirts of São Paulo city, southeastern Brazil, was carried out over the period November 1990-January 1991. The aim of the study was to characterize rubella epidemiology in a representative non-immunized community in south east Brazil. The survey comprised a seroprevalence study, stratified by age (0-40 years) and a seroconversion study of rubella vaccine in non-infected children below 2 years of age. Mathematical techniques were applied to resultant data sets to determine the age dependent rates of decay in the proportion of individuals with maternally derived antibodies, vaccine seroconversion, and infection of susceptibles, termed the force of infection, and to estimate the average age at first infection.
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A S Silveira, and
D J Nokes, and
H M Yang, and
S D Passos, and
M R Cardoso, and
E Massad
January 1994,
Revista do Instituto de Medicina Tropical de Sao Paulo,
R S De Azevedo Neto, and
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M R Cardoso, and
E Massad
June 1994,
Epidemiology and infection,
R S De Azevedo Neto, and
A S Silveira, and
D J Nokes, and
H M Yang, and
S D Passos, and
M R Cardoso, and
E Massad
January 2002,
Bulletin of the World Health Organization,
R S De Azevedo Neto, and
A S Silveira, and
D J Nokes, and
H M Yang, and
S D Passos, and
M R Cardoso, and
E Massad
June 1998,
Epidemiology and infection,
R S De Azevedo Neto, and
A S Silveira, and
D J Nokes, and
H M Yang, and
S D Passos, and
M R Cardoso, and
E Massad
April 2001,
Revista de saude publica,
R S De Azevedo Neto, and
A S Silveira, and
D J Nokes, and
H M Yang, and
S D Passos, and
M R Cardoso, and
E Massad
June 1988,
Revista de saude publica,
R S De Azevedo Neto, and
A S Silveira, and
D J Nokes, and
H M Yang, and
S D Passos, and
M R Cardoso, and
E Massad
July 2016,
Forensic science international. Genetics,
R S De Azevedo Neto, and
A S Silveira, and
D J Nokes, and
H M Yang, and
S D Passos, and
M R Cardoso, and
E Massad
March 2013,
Cadernos de saude publica,
R S De Azevedo Neto, and
A S Silveira, and
D J Nokes, and
H M Yang, and
S D Passos, and
M R Cardoso, and
E Massad
February 2024,
Transactions of the Royal Society of Tropical Medicine and Hygiene,
R S De Azevedo Neto, and
A S Silveira, and
D J Nokes, and
H M Yang, and
S D Passos, and
M R Cardoso, and
E Massad
July 2003,
Emerging infectious diseases,
