Illinois will join the World Health Organization’s Global Outbreak Alert and Response Network, or GOARN, to counterbalance the federal government’s withdrawal, Gov. JB Pritzker announced Tuesday. (snip) California also joined GOARN in late January.The withdrawal is complicated because there is no official way to leave WHO and the United States is the only country with the ability to do so. Experts say it’s up to WHO members when the departure is finalized, and they expect the matter to come up in meetings in February and May.