Palestinian girl Nour Seyam, 3, who suffers from tonsillitis, is checked by a doctor at an outpatient clinic at Shifa hospital, Gaza's largest public medical facility, in Gaza City, March 29, 2017. REUTERS/Mohammed Salem SEARCH "GAZA HEALTH" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Palestinian girl Nour Seyam, 3, who suffers from tonsillitis, is checked by a doctor at an outpatient clinic at Shifa hospital, Gaza's largest public medical facility, in Gaza City, March 29, 2017. REUTERS/Mohammed Salem SEARCH "GAZA HEALTH" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.

Pop singer Christina Aguilera, shown performing October 7, 2000 at Tiger Jam III in Las Vegas, [is suffering from a viral syndrome associated with exudative tonsillitis, according to Dr. Peter Waldstein. The Grammy Award winning singer has been forced to cancel several appearances, including a Disney Channel/Time Warner event in New York's Times Square on October 28, 2000.]

Pop singer Christina Aguilera, shown performing October 7, 2000 at Tiger Jam III in Las Vegas, is suffering from a viral syndrome associated with exudative tonsillitis, according to Dr. Peter Waldstein. The Grammy Award winning singer has been forced to cancel several appearances, including a Disney Channel/Time Warner event in New York's Times Square on October 28, 2000.

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