WASHINGTON/united nations - With three cases of Ebola diagnosed in the United States and more than 100 people being monitored in case they are infected, President Barack Obama said Saturday that Americans ‘can’t give in to hysteria or fear’ about the spread of the virus.

As though to illustrate his point, a Dallas bus and train station was closed on Saturday afternoon over concern about a woman who fell ill. The woman was first reported to be on the checklist for possible Ebola exposure but turned out not to be.

While Obama administration and world health officials were still focused on tackling Ebola at its source in three West African countries, Texas state authorities said 14 people had been cleared from an Ebola watch list. On Sunday and Monday, more were expected to end 21 days of monitoring for fever and other symptoms if they are asymptomatic.

They could include Louise Troh in Dallas, fiancee of the now deceased Liberian man who was the first person diagnosed with Ebola in the United States in late September while visiting her. Troh, her 13-year-old son, and two relatives of Duncan have been in mandatory quarantine at an undisclosed location in Dallas. In all, 145 people with ‘contacts and possible contacts’ with the virus were being monitored, the Texas Department of State Health Services said in a statement.

In his weekly radio address, Obama made plain he is not planning to give in to demands from some lawmakers for a ban on travelers from Liberia, Sierra Leone and Guinea, the worst-hit countries where more than 4,500 people have died since March in the worst Ebola outbreak on record.

Moreover, the United Nations and governments of countries at the forefront of efforts to turn back the unfolding Ebola outbreak in West Africa have agreed to ensure that the UN system adopts a coordinated approach to global support being mobilised for national-level crisis response plans, the UN said Sunday.

Wrapping up a four-day meeting in Accra, Ghana, on strengthening the international community’s support to efforts by Guinea, Liberia and Sierra Leone to tackle the Ebola crisis, top-level officials from the UN system and partner organizations reaffirmed the need to move rapidly and in a coordinated, precise manner to defeat the disease.

According to a press release from the Ghana-based UN Mission for Ebola Emergency Response (UNMEER), today’s meeting produced an operational framework to ensure the wider UN system adopts a unified and coordinated approach to the international support being provided to national response plans.

This comes as the UN has shifted into high gear to support the efforts of hard-hit countries in tackling the outbreak on all fronts, from food aid to delivery of building supplies, and providing healing and training for survivors. Speaking to reporters at UN Headquarters in New York late last week, Secretary-General Ban Ki-moon hailed the resilience of West Africa’s people and governments but underscored that “they have asked for our help we need to turn pledges into action.

We need more doctors, nurses, equipment, treatment centres and medevac capacities.” As the scale-up continued, UNMEER chief Anthony Banbury welcomed the arrival last Wednesday in Accra of a massive German aircraft which will deliver needed supplies and material to affected countries in the region. “This flight is a welcome reflection of the international community’s support for the efforts to stop Ebola and help those affected by it – this support is vital if we are to stop the virus,” he said.

Today’s meeting in Accra was attended by the Chef de Cabinet of the UN Secretary-General, Susana Malcorra; the Director General of the UN World Health Organization (WHO), Dr. Margaret Chan; and the Executive Director of the World Food Programme, Etharin Cousin. Also present were the Special Envoy of the Secretary-General on Ebola, Dr. David Nabarro and UNMEER chief, Banbury. Among the other participants were senior officials from UN agencies, funds and programmes, as well as from international partners such as the World Bank, the United States Centers for Disease Control and Prevention and the United Kingdom Department for International Development.

UNMEER noted that Banbury will return to Guinea, Liberia and Sierra Leone next week to further consult with their leaders on the way forward and to brief them on the operational plans produced in the meetings that were concluded earlier today. The Governments of Guinea, Liberia and Sierra Leone – each of which has the final decision on the overall approach and strategy for dealing with Ebola in their respective countries - have national response plans in place and have been responding to the crisis for many months.

ountry since the Liberian man, Thomas Eric Duncan, was diagnosed. He died in a Dallas hospital isolation ward on Oct. 8. Americans’ faith in the medical system and in authorities’ ability to prevent the disease from spreading was jolted by a series of missteps when he was initially not diagnosed.

Two nurses who were part of the team caring for Duncan contracted Ebola. Amber Vinson is being cared for at Atlanta’s Emory University Hospital, while Nina Pham is being treated at the National Institutes of Health just outside Washington. A chain of people who had contact with either Duncan or the sick nurses are being monitored. Some 800 passengers who took the same planes as Vinson on a trip she made to Ohio before being diagnosed, and passengers on subsequent flights using the same planes, have been contacted by the airline, Frontier Airlines, the carrier said on Saturday.

The airline said in a letter to employees that it had been informed by the U.S. Centers for Disease Control and Prevention that the Dallas nurse may have been in a more advanced stage of the illness than previously thought when she traveled back to Dallas from Cleveland on Oct 13. Those being monitored include a lab worker at the hospital, who is not ill but is in isolation at sea in her cabin on the Carnival Magic cruise ship owned by Carnival Corp. The lab worker did not have contact with Duncan but may have come in contact with test samples. The ship was on its way back to Galveston, Texas.

Obama has stressed that containing Ebola should include help for the worst-hit countries and Washington plans to deploy up to 4,000 military personnel to the region by late October. Obama is preparing to ask for additional funds from Congress to beat Ebola and could make the request next week, according to a Bloomberg report. British Prime Minister David Cameron said on Saturday European Union leaders should raise the amount of money pledged to fight Ebola to 1 billion euros ($1.3 billion) and mobilize at least 2,000 workers to head to West Africa. A spokeswoman at Cameron’s office said the EU commission and 28 member states had pledged a total of 500 million euros so far to fight Ebola. Combating the disease was also among the subjects of talks being held on Friday and Saturday between American and Chinese top diplomats.