Merck Shuts Down Covid Vaccine Program After Lackluster Data BloombergMerck ends COVID vaccine program, cites inferior immune responses Yahoo! VoicesCancellations of COVID-19 vaccine appointments continue KTNV Channel 13 Las VegasMerck Stops Developing Both Of Its COVID-19 Vaccine Candidates NPRAn 85-year-old woman from Yuma traveled to Glendale to get her COVID-19 vaccine azfamily powered by 3TV & CBS5AZView Full Coverage on Google News