OAKLAND COUNTYSpike in COVID-19 cases linked to grad parties in Oakland CountyPublished:ย August 3, 2020, 11:19 PMTags:ย lyon township, oakland county, coronavirus, prom parties, prom, graduation parties, spike in coronavirus, local news, covid-19, graduation, news, local, south lyonThere has been a spike in coronavirus (COVID-19) cases in parts of Oakland County.