The World Health Organization has completed the first phase of a critical polio vaccination campaign in central Gaza. After health officials confirmed Gaza’s first polio case in 25 years, the Israeli military agreed to calls for limited humanitarian pauses on its attacks in order for aid organizations to carry out vaccinations. But “there’s real practical, operational problems with this current pause,” says Yanti Soeripto, president and CEO of Save the Children US, whose staff is part of the vaccine drive. “It is not a ceasefire at all. It is an eight-hour pause every day.” As Israel has repeatedly attacked civilians awaiting the provision of aid over the course of its war, it is “difficult to reach normal coverage numbers” — especially for the two-dose vaccine course necessary to vaccinate against polio. Soeripto also discusses outbreaks in other current war zones, including the recent outbreak of mpox in the Democratic Republic of Congo, and warns that “these diseases often cause even more casualties than bombs and bullets.”