Between January 1997 and December 2002, there were 18,817 travelers who visited its clinics, and 2,173 were diagnosed with ailments that ranged from sore throat and ear and sinus infection to pneumonia, bronchitis, and mycobacterial infection.
لذلك فإن المسافرين الذين يزورون البلدان حيث يكون خطر الاصابة بالامراض مرتفعا يُنصحون بالتأكد ان لقاحهم لا يزال ساري المفعول .‏