This function creates epidemic control curves for "ALL PEPFAR" or selected OU's
Usage
epi_plot(sel_cntry = c("All PEPFAR"))
Examples
if (FALSE) { # \dontrun{
epi_plot()
epi_plot(sel_cntry = "Lesotho")
epi_plot(sel_cntry = c("South Africa", "Zambia", "Kenya", "Malawi"))
epi_plot(sel_cntry = "USA") #breaks with non-PEPFAR countries
} # }