Iran on Sunday instituted mandatory mask-wearing as fears mount over newly spiking reported deaths from the coronavirus, even as its public increasingly shrugs off the danger of the COVID-19 illness it causes. Supreme Leader Ayatollah Ali Khamenei publicized an image of himself in a mask in recent days, urging both public officials and the Islamic Republic’s 80 million people to wear them to stop the virus’s spread.

But public opinion polling and a walk through any of the streets of Tehran show the widespread apathy felt over a pandemic that saw Iran in February among the first countries struck after China. Whether rooted in fatigue, dismissal or fatalism, that indifference has scared Iranian public health officials into issuing increasingly dire warnings.

“Let me first thank our great people,” a health worker in a hazmat suit in a hospital corridor sarcastically bellows in one dark state TV spot. “You hand in hand with the coronavirus defeated us!”

For a moment, it appeared the restrictions and public fear had worked, as reported new cases and deaths from the virus dropped to their lowest levels in May. But new cases soon rose again, with officials initially saying better testing causes the numbers to spike even as they lifted restrictions to boost economic activity.

By mid-June, daily death tolls again routinely rose to triple digits. On Sunday, Iran saw its highest single-day reported death toll of the pandemic with 163 killed.