By Farah Master HONG KONG (Reuters) – Hong Kong’s subway operator, bus and ferry companies, and one of its biggest supermarket chains, are cutting back services due to a worsening COVID-19 outbreak that has seen daily infections explode since early February. The surge in cases and mixed messaging from government officials have triggered an exodus of people from the global financial hub, where authorities are clinging to a “dynamic zero” coronavirus strategy that seeks to stamp out all outbreaks. Many restaurants and shops in the Chinese-ruled city have closed while its main financial district …