A burqa-clad health worker administers polio vaccine drops to a child during a vaccination campaign in the old quarters of Herat. AFP / Hoshang Hashimi

A woman wearing a protective mask walks past a new mural by Italian street artist TvBoy, entitled "Supper for six", inspired by "The last supper" by Italian artist Leonardo da Vinci in Naviglio neighbourhood, southern Milan. AFP / MIGUEL MEDINA

A boy attempts to keep a candle lit in a flooded cemetery following Typhoon Molave, in Masantol, Pampanga, Philippines. REUTERS/Eloisa Lopez

Firefighters face strong winds as they head up a hillside to battle a wind driven wildfire near Irvine, California, U.S. REUTERS/Mike Blake

A Kyrgyz boy pets a donkey as other people launch a balloon at sunset outside Tash-Dyobyo village, 12 kilometers south of Bishkek, Kyrgyzstan. (AP Photo/Vladimir Voronin)