Syrian refugees at Jordan's Al-Zaatari camp are increasingly susceptible to health risks, with the onset on summer and amid overcrowding and unhygienic practises.<br />Home to about 170,000 refugees from Syria, poor sanitation increases the ease of contracting certain illnesses.<br />Doctors say among the top health issues are diarrhoea, constipation, hepatitis and malnutrition.<br />Al Jazeera's Nisreen El-Shamayleh reports from the Al-Zaatari camp.