Like many across the world, Rejwan grows anxious as he scans the news on his cellphone, his mind taking in the rocketing numbers of people contracting the coronavirus and the mounting death toll.

But for 21-year-old Rejwan, the pandemic is particularly scary because of where he lives: Kutupalong refugee camp in Coxs Bazar, Bangladesh. It is the worlds biggest refugee camp, now home to more than 600,000 refugees from the Rohingya community like Rejwan and his family who fled persecution in Myanmar.

They are densely packed in more than 100,000 people live in every square mile and despite improvements, poor sanitary conditions mean they are already at risk from diseases like dysentery, typhoid and diphtheria. For them, COVID-19 is a terrifying prospect.

So many deaths in Italy, Rejwan wrote in a WhatsApp message to HuffPost. I am worried. Panic and rumors about the illness continue to sweep across Coxs Bazar, where humanitarian organizations are working against the clock to raise awareness on hygiene, hand-washing and social distancing among residents living in a labyrinth of hot plastic tents, now under lockdown.