Zeina, a 32-year-old Jordanian national, is very particular about protecting herself in the COVID-19 era. She washes her hands regularly, wears a face mask and observes social distancing. But as she sat with her friends in an upscale shisha cafe in Amman’s Abdoun neighborhood on a recent evening, she was unaware of the fact that she was inhaling 6,000 chemicals every time she drew flavored tobacco smoke through water. “I ...