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Live from NPR News in Washington.

I'm Louise Givone.

In War Ravage Gaza, the United Nations is beginning to administer polio vaccinations this weekend.

More than half a million children are due for the shots.

The virus has re-emerged in Gaza after more than 10 months of war between Israel and Hamas.

NPR's Carrie Kahn reports that with so much of Gaza's infrastructure and ruins,

it will be a logistical challenge to vaccinate 600,000 children.

There are many challenges ahead for UN health workers, including getting the vaccines

and patients to clinics, as well as keeping the vaccines refrigerated.

Israel has agreed to limited pauses in the fighting in certain areas Hamas has said it will

cooperate too.

The polio virus has not been present in Gaza for at least 25 years.

It was recently detected in a 10-month-old boy who is now

partially paralyzed. Doctors say many factors contribute to polio's return

including kids not having access to vaccines during nearly a year of war.

Wastewater treatment plants are in ruins, and more than 90% of residents have been

displaced from their homes and now live in substandard conditions.

Carrie Kahn and Pierre News, Tel Aviv.

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