large-scale polio vaccinations begin in war ravaged Gaza after first case in 25 years polio vaccine campaign aims to reach about 640,000 children in Gaza authorities plan to vaccinate children in central Gaza until wednes day campaign faces challenges from ongoing fighting to devastated roads and hospitals shut down by War Gaza recently reported its first polio case in 25 years a 10-month-old boy paralyzed in a leg polio is spread through fecal matter