A muslim prays at a mosque, as unseen Indian Municipal corporation workers spray DDT to prevent the spread of mosquito-borne dengue and chikungunya viruses, at a make-shift cattle market on the eve of Muslim festival of Eid al-Adha in Jammu on September 24, 2015. Muslims across the world are preparing to celebrate the annual festival of Eid al-Adha, or the Festival of Sacrifice, which marks the end of the Hajj pilgrimage to Mecca and in commemoration of Prophet Abraham's readiness to sacrifice his son to show obedience to God. / AFP / STR        (Photo credit should read STR/AFP/Getty Images)