Health officials announced Friday that millions of doses of two experimental Ebola vaccines could be ready to use in 2015. If they prove effective, the vaccines could be a boost to the fight against the current West African Ebola outbreak that has claimed more than 4,800 lives.

A New York City doctor who recently returned from treating Ebola patients in West Africa tested positive for Ebola Thursday. Health officials placed the patient in isolation and began the search for people who might have come into contact with him.

While treating a Liberian man infected with Ebola, two Dallas nurses became infected with the virus. Now, the Centers for Disease Control and Prevention (CDC) has tightened its guidelines for Ebola treatment.

Many people worry that vaccines meant to prevent disease may cause other illnesses. But a recent study found that vaccines likely did not cause multiple sclerosis (MS) or disorders like it.

More than 40 people in Texas breathed a sigh of relief Monday — they had been taken off a watch list for Ebola infection after coming into contact with the first patient diagnosed in the US, Thomas Eric Duncan.

As the Ebola outbreak in West Africa spreads and fears heighten in the US, health experts are assessing America's ability to stop an Ebola outbreak at home. Those experts said conventional US treatment centers may not be enough.

A health worker who might have come into contact with lab samples from an Ebola patient boarded a cruise ship last Sunday. Now the worker and a traveling partner are in voluntary isolation in a cabin of the ship, which is outside of Belize.

The old test for enterovirus D68 (EV-D68) took weeks to produce results. But the new test the Centers for Disease Control and Prevention (CDC) has developed only takes a few days.

Four days after Dallas nurse Nina Pham tested positive for Ebola, a second health care worker who cared for Thomas Eric Duncan has also tested positive for the virus.

As the Ebola outbreak continues to spread in West Africa, health officials are calling for increased measures to fight it. World Health Organization (WHO) estimates say that, if the global response to the crisis isn't ramped up, the outbreak could worsen.