Thousands, perhaps millions, more may be at risk. Sleeping sickness results from the bite of the tsetse fly. After sucking the blood of a human infected with a parasite, the fly moves on to infect its next victim.
दूसरा कारण है पैसों की कमी, जिसकी वज़ह से बच्चे पैदा करना और उन्हें सँभालना एक “बोझ ” या“ असुविधा ” लगता है ।