ATHENS, Greece—Faced with a surge in coronavirus infections and a wave of violent anti-government demonstrations, Greece’s center-right prime minister accused political opponents on March 12 of exploiting lockdown fatigue. Dozens of demonstrations have taken place in Athens and other Greek cities over the past month following multiple allegations of police brutality in enforcing a nightly curfew and other strict lockdown measures. The protests were also fueled by a recent decision to launch police patrols on university campuses as well as a hunger strike by a jailed militant group gunman to demand a prison transfer. Often attended by thousands in defiance of lockdown restrictions, the protests have triggered nightly clashes between demonstrators and police. Speaking in parliament, Prime Minister Kyriakos Mitsotakis claimed opposition parties had acted irresponsibly and ignored his appeals for calm. “There is a serious risk that the pandemic will be turned from a threat to public health into …