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Related terms: Ebola Virus Disease, EVD

Ebola Survivors May Develop Immunity to the Disease

Posted 26 Dec 2017 by

TUESDAY, Dec. 26, 2017 – The immune systems of people who survived the first Ebola outbreak 40 years ago appear to be protecting them against future infection with the deadly virus, a new study finds. The discovery could help in efforts to develop vaccines and drugs to treat Ebola, according to the researchers. "With the number and frequency of Ebola outbreaks increasing over time, the need to ...

U.S. Lifts Ban on Laboratory-Made Lethal Viruses

Posted 19 Dec 2017 by

TUESDAY, Dec. 19, 2017 – U.S. officials said on Tuesday they've lifted a moratorium enacted three years ago on funding lab experiments that would create lethal viruses. This type of research can now occur if a scientific panel finds the potential benefits outweigh any risks, said Dr. Francis Collins, head of the U.S. National Institutes of Health. The research in question would involve tweaking ...

Two Ebola Vaccines Spur Lasting Immune Response

Posted 11 Oct 2017 by

WEDNESDAY, Oct. 11, 2017 – Two experimental vaccines against the deadly Ebola virus are able to trigger an immune response that lasts for at least a year, a new clinical trial has found. Experts said the results give more support to one of the vaccines, in particular. That vaccine, dubbed rVSV-ZEBOV, made headlines last year when it appeared highly effective at preventing Ebola disease in a ...

No Easy Road Back for Ebola Survivors

Posted 7 Sep 2017 by

THURSDAY, Sept. 7, 2017 – The vast majority of people who survive an infection with the Ebola virus struggle with ongoing disabilities, including significant limitations in thinking, vision and the ability to move, new research shows. Scientists from the Liverpool School of Tropical Medicine and the University of Liverpool checked to see how a group of 27 Ebola survivors was doing 12 months ...

Another Step Toward Ebola Protection

Posted 18 May 2017 by

THURSDAY, May 18, 2017 – On the heels of concerns about a new Ebola outbreak in Africa, scientists say they've discovered the first human antibodies effective against all major Ebola viruses. The findings could lead to the first effective treatments and vaccines, according to the team of academic, industry and government researchers. Analysis of the blood of a survivor of the 2013-2016 Ebola ...

Chimps Can Get Ebola, Too, But Oral Vaccine May Help

Posted 9 Mar 2017 by

THURSDAY, March 9, 2017 – A new study shows promise for an oral vaccine to protect wild apes against the Ebola virus. The virus is a real threat to Africa's great apes – for example, Ebola is estimated to have killed one in three wild gorillas in recent decades. However, the researchers noted that the new vaccine research was stopped early due to U.S. laws regarding medical testing in chimps. ...

Ebola Blood Test May Help Predict Survival Chances

Posted 20 Jan 2017 by

FRIDAY, Jan. 20, 2017 – A blood test may help determine a person's chance of surviving an Ebola infection, researchers say. "It is not just defining how much Ebola virus that is present in a patient that defines whether a patient will survive. How the patient fights the infection is also key," said John Connor, an associate professor of microbiology at Boston University School of Medicine. ...

Ebola Can Linger in Lungs, Study Finds

Posted 5 Jan 2017 by

THURSDAY, Jan. 5, 2017 – Researchers say they've discovered signs that the Ebola virus could lurk in the lungs and reproduce in a recovering patient, a finding that could lead to better understanding of the deadly disease. At issue: Does the Ebola virus cause lung damage by infecting the lungs and spreading in them? Researchers have suspected this, but weren't sure that the virus infects the ...

Ebola Vaccine Appears Very Effective in Trial

Posted 23 Dec 2016 by

FRIDAY, Dec. 23, 2016 – An experimental Ebola vaccine was highly effective against the deadly virus in a large trial conducted in Guinea, researchers say. The vaccine trial included nearly 12,000 people during 2015, when new cases of Ebola were still appearing in West Africa. Among 5,800 people who received the vaccine, no Ebola cases were recorded 10 days or more after vaccination. But 23 cases ...

Some Ebola Infections May Be Symptomless

Posted 15 Nov 2016 by

TUESDAY, Nov. 15, 2016 – Researchers have discovered cases of symptom-free Ebola infection in West Africa, which suggests that the number of people who had the virus during the recent epidemic was higher than thought. There were 28,000 reported cases of Ebola in West Africa between 2013 and 2016. That total included only people with symptoms. Researchers took blood samples from 187 people in a ...

Ebola Virus Mutated to Become More Infectious, Scientists Say

Posted 3 Nov 2016 by

THURSDAY, Nov. 3, 2016 – Mutations in the Ebola virus boosted its ability to infect people during the 2013-2016 epidemic in West Africa, two independent teams of researchers say. By the time the epidemic ended, more than 28,000 people had been infected and more than 11,000 had died. The authors of the studies wanted to determine if there were any genetic changes in the Ebola virus in response to ...

Ebola May Be Present in Semen for Year or More

Posted 31 Aug 2016 by

TUESDAY, Aug. 30, 2016 – Ebola virus stays present in semen longer than previously thought, and is more likely to be found in older men, researchers report. The deadly virus can be transmitted through semen. Preliminary findings from 429 male Ebola survivors taking part in a national screening program in the African nation of Liberia showed that 9 percent (38) had fragments of Ebola in their ...

Sex, Breast Milk May Have Helped Spread Ebola in Africa

Posted 19 May 2016 by

THURSDAY, May 19, 2016 – The Ebola virus was transmitted by semen and breast milk during the latter stages of the outbreak in Sierra Leone, a new study shows. Researchers from the United Kingdom identified several instances of unconventional transmission of the deadly disease, including a mother who may have passed it to her baby through breast-feeding. In another instance, an Ebola survivor ...

Ebola May Leave Some Survivors Blind

Posted 4 May 2016 by

WEDNESDAY, May 4, 2016 – About one-fifth of Ebola survivors in Sierra Leone developed severe or total vision loss within weeks of being declared free of the virus, a new study finds. Many survivors develop uveitis, a general term describing illnesses that trigger swelling and can destroy optical tissues, the researchers said. "Uveitis patients developed ocular symptoms a median of three weeks ...

Two-Step Ebola Vaccine Strategy Works in Early Trial

Posted 19 Apr 2016 by

TUESDAY, April 19, 2016 – A new two-step Ebola vaccine strategy has shown some promise in early clinical trials. The trials involved two candidate Ebola vaccines that were given to volunteers in separate shots, the researchers said. One vaccine was provided first as a "primer" shot, and the second was given as a "booster." The winning combo was a "primer" shot of a genetically engineered cold ...

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