hav_be_2002: Hepatitis A serological data from Belgium in 2002 (line...
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hav_be_2002

R Documentation

Hepatitis A serological data from Belgium in 2002 (line listing)

Description

A subset of the serological dataset of Varicella-Zoster Virus (VZV) and Parvovirus B19 in Belgium where only individuals living in Flanders were selected

Usage

hav_be_2002

Format

A data frame with 2 variables:

age: Age of individual
seropositive: If the individual is seropositive or not

Source

Thiry, N., Beutels, P., Shkedy, Z. et al. The seroepidemiology of primary varicella-zoster virus infection in Flanders (Belgium). Eur J Pediatr 161, 588-593 (2002). \Sexpr[results=rd]{tools:::Rd_expr_doi("doi:10.1007/s00431-002-1053-2")}

Examples

# Reproduce Fig 4.1 (upper right panel), p. 63
library(dplyr)
df <- hav_be_2002 %>%
  group_by(age) %>%
  summarise(pos = sum(seropositive), tot = n())
plot(
  df$age, df$pos / df$tot,
  pty = "s", cex = 0.06 * df$tot, pch = 16, xlab = "age",
  ylab = "seroprevalence", xlim = c(0, 86), ylim = c(0, 1)
)

serosv documentation built on Oct. 18, 2024, 5:07 p.m.