Yellow fever vaccines¹ are being imported for the north of Uganda to inoculate² people against the disease which has killed about 45 people.

黄热病疫苗被运往乌干达北部地区用于接种未感染人群，此次疫情已经造成大约45人死亡。

Yellow fever is transmitted by a type of mosquito that is active only during the day
People began falling ill about a month ago in nine northern districts, the country's health ministry³ says.

A health official in Kitgum told the BBC the outbreak was confirmed as yellow fever on Christmas Eve.

The disease, transmitted by infected mosquitoes, was last recorded in Uganda almost 40 years ago, officials say.

Task forces have been put in place in the affected⁴ districts and isolation⁵ units set up.

Bosco Ochola, chairman of the Kitgum task force, said his staff were treating about 65 infected patients.

"This morning we got a phone call from the Ministry of Health that arrangements are being made from WHO (World Health Organization) to bring vaccines to cover the population," he told the BBC's Focus on Africa programme

Yellow fever, unlike malaria⁶（疟疾） , is transmitted by a type of mosquito which is active only during the day.

Radio talk shows and dramas were trying to inform people of this, he said.

The health ministry says at least 2.5 million people will be vaccinated⁷ when the vials（小瓶，药水瓶） arrive, Uganda's state-owned New Vision newspaper reports.

The disease has a wide array of symptoms from nausea⁸ and vomiting⁹ to kidney failure, jaundice（黄疸） and bleeding.

About half of those who develop severe symptoms and are untreated die from the disease.