More than 650,000 Rohingya people have entered Bangladesh from Myanmar and are living in temporary shelters on muddy hills with little access to proper healthcare and sanitation.
Much of the population of the camps have been battling Diphtheria with other epidemics possibly around the corner.
Elizabeth Quelch, a nurse with Samaritan's Purse who visited Bangladesh to help, said: "They are so tightly packed together; they live in very close quarters so if one person gets Cholera...it's very easily spread."
During the monsoon season (March-June), people often have to leave their homes because of flash floods but also disease can cause some of the bigger problems.
The charity set up a Diphtheria clinic in the camp and are working there 24 hours a day and are also working with a local medical missionary hospital by building two extra wards.
Elizabeth Quelch explained why they decided to support the wards: "As people are coming across from Myanmar, they are coming across with complex surgical needs and the camp wasn't really able to provide that surgery for them, that life-saving surgery, so we've built these wards which have increased the hospital capacity."
Franklin Graham, the President of Samaritan's Purse, recently visited the camps where he pledged funds to help complete the hospital facility.
Graham said in a statement: "God's got this hospital in the middle of all this, proclaiming His Name."
Speaking of her shock on visiting the region, Elizabeth Quelch said: "It's just really the scale of the problem that really hit me."
She added waht her motivation is: "In the Bible, it says we're called to be the hands and feet of Jesus.
"It's just an opportunity to go and love our neighbours like it asks us to in the Bible."
She added a request for prayer for the Rohingya people and that the staff will get to share God's love with them.
Click here to listen to the whole interview with Elizabeth Quelch, speaking to Premier's Cara Bentley:
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