Authorities now believe that the Ebola outbreak in West Africa will have run its course by August thanks to the hard work of emergency workers there.

Ismail Ould Cheikh Ahmed, the head of the UN Ebola missions, said that mistakes had been made early on in handling the crisis, as the virus killed 10,000 people after it was declared dead a year ago, and a “global coalition of inaction” led to more deaths, according to a BBC report.

Guinea, Liberia, and Sierra Leone were ravaged by the deadly virus, and the outbreak caused a scare in the United States after aid workers who worked in West Africa brought the disease home with them in a couple of cases.

However, Ahmed said that although there was a lack of knowledge early on and a “certain degree of arrogance, I think we are learning lessons,” he said according to the BBC report.

Although authorities have been hesitant to provide a specific date on when the outbreak will be over, he is “pretty sure” it will be gone by the summer.

A toddler was the first to die of Ebola in remote section of Guinea in December 2013, and three months later the World Health Organization declared that an outbreak was underway. Five months later, it was declared a public health emergency of international concern after 1,000 people died.

It was in March and April of last year that health agencies realized something was different about this outbreak. As of March 18, 10,251 people have died from the disease, including one in the United States, six in Mali, and eight in Nigeria. The vast majority of the other deaths have occurred in those three countries: 4,283 in Liberia, 3,712 in Sierra Leone, and 2,241 in Guinea.

By August 2014, treatment centers in Liberia were overwhelmed by the sick.

In recent months, case numbers have been falling and global fear of the disease has reduced greatly from the hysteria that gripped the world last year. However, the outbreak isn’t over just yet, as overall cases haven’t declined significantly since January.