A cluster of Legionnaires’ ailment – a variety of pneumonia that is brought on by a germs that grows in warm drinking water – broke out while in the Harlem area of New York City final week.، يُرَكِّز، يُوَجِّهوَرْطَه، صُعوبَهيُثَبِّتُيُثَبِّتيُرَتِّب، يُعيِّن، يُحَدِّ