The Ebola outbreak has amounted to 4000 deaths in the world and has affected West Africa, such as Guinea, Liberia, and Sierra Leone, the worst. One of those deaths belonged to Thomas Duncan, the first person diagnosed with Ebola in the United States. The UN says more than 233 health workers working in West Africa have now died in the outbreak, the world’s deadliest to date. A senior official said that they did not anticipate the scale of the Ebola outbreak. Chris Dye, from World Health Organization, said, “We’ve asked for a response of about $1 billion, so far we have around $300 million with more being pledged, so a bit less than half of what we need but it’s climbing quickly all the time.” President Barack Obama ordered screenings for Ebola at five American airports in the United States, including JFK International Airport in New York after being briefed by Center for Disease Control chief Dr. Tom Frieden earlier this week.