Several months before the coronavirus pandemic began, the Trump administration eliminated a key American public health position in Beijing intended to help detect disease outbreaks in China, Reuters has learned. The American disease expert, a medical epidemiologist embedded in China’s disease control agency, left her post in July, according to four sources with knowledge of the issue. The first cases of the new coronavirus may have emerged as early as November, and as cases exploded, the Trump administration in February chastised China for censoring information about the outbreak and keeping U.S. experts from entering the country to help. “It was...