Parvo B19 serological data from Finland from 1997-1998 (line listing)

A seroprevalence survey testing for parvovirus B19 IgG antibody, performed on large representative national serum banks in Belgium, England and Wales, Finland, Italy, and Poland. The sera were collected between 1995 and 2004 and were obtained from residual sera submitted for routine laboratory testing.

Usage

parvob19_fi_1997_1998

Format

A data frame with 5 variables:

age: Age of individual
seropositive: If the individual is seropositive or not
year: Year surveyed
gender: Gender of individual
parvouml: Parvo B19 antibody units per ml

Source

MOSSONG, J., N. HENS, V. FRIEDERICHS, I. DAVIDKIN, M. BROMAN, B. LITWINSKA, J. SIENNICKA, et al. "Parvovirus B19 Infection in Five European Countries: Seroepidemiology, Force of Infection and Maternal Risk of Infection." Epidemiology and Infection 136, no. 8 (2008): 1059-68. doi:10.1017/S0950268807009661

Examples

# Reproduce Fig 4.5 (left bottom panel), p. 68
# NB: This figure will look different to that of in the book, since we
# believe that the original authors has made some errors in specifying
# the sample size of the dots.
library(dplyr)
df <- parvob19_fi_1997_1998 %>%
  mutate(age = round(age)) %>%
  group_by(age) %>%
  summarise(pos = sum(seropositive), tot = n())
plot(df$age, df$pos / df$tot,
  cex = 0.07 * df$tot, pch = 16, xlab = "age", ylab = "seroprevalence",
  xlim = c(0, 82), ylim = c(0, 1)
)