Young children nursing severe facial burns, others suffering from malnutrition -- an exodus of jihadist families and civilians from the Islamic State group's vanquished final enclave is overwhelming eastern Syria's hospitals. Most arrivals are women and children from Al-Hol, a camp for the displaced that has swelled far beyond its capacity to house more than 70,000 people during a months-long offensive against the last scrap of the jihadists' "caliphate".