Science

LIVESCIENCE  by Rachel Rettner                                                          May 6, 2015

The Ebola virus can live on surfaces in hospitals for nearly two weeks, a new study suggests.

Researchers tested how long the Ebola virus could survive on plastic, stainless steel and Tyvek, a material used in Ebola suits. The researchers also simulated different environmental conditions, including a climate-controlled hospital at 70 degrees Fahrenheit (21 degrees Celsius) and 40 percent humidity, and the typical environment of West Africa, at 80 F (27 C) and 80 percent humidity.

In general, the virus survived on surfaces for a longer time when in the climate-controlled conditions than in the West African environment, the study found. Under hospital-like conditions, the virus lived for 11 days on Tyvek, eight days on plastic and four days on stainless steel. The longest the virus was able to survive in the tropical conditions of the West African environment was three days, on Tyvek.

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http://www.livescience.com/50758-ebola-virus-survival-surfaces.html

BUSINESS STANDARD                                                                        April 27, 2015

HYDERABAD, India --Ella Foundation, which has taken up research for finding a potential vaccine for the deadly Ebola virus, today said it had successfully completed preliminary studies on the virus, which was responsible for high fatalities among humans in central Africa.

The Hyderabad-based foundation said it had completed the preliminary animal (with mice) experiments of the virus' glycoprotein with the targeted adenovirus, and the "immune response results have been good", which would be followed by toxicology tests and the subsequent clinical trials involving human beings.

Adenoviruses are responsible for respiratory infections, gastroenteritis, cystitis, and primary pneumonia in humans, and are therefore used as a clear target to understand the human immunity characteristics in laboratory. However, the efficacy of the vaccine is judged by the outcomes seen in human trials.

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http://www.business-standard.com/article/current-affairs/ella-foundation-announces-key-outcomes-in-ebola-vaccine-research-115042700631_1.html

ALL AFRICA by Sarah Naraghi                    April 2, 2015

(Scroll down for releated report and story.)

Research on potential Ebola vaccines should seek to protect great apes as well as humans to prevent the disease from decimating gorilla and chimpanzee populations, say experts.

                   Chimps play at the on Tacugama Sanctuary in Sierra Leone which is under threat of closure

Work is continuing on trials of potential Ebola vaccines and the rate of fresh cases of the disease in the West African outbreak is slowing.

But unrelated outbreaks among Central Africa's great ape populations could happen at any time, says a report from the International Union for Conservation of Nature (IUCN). The study estimates that Ebola has wiped out thousands of gorillas and chimpanzees since the early 2000s, with some rainforests experiencing a 90 per cent decline in their great ape populations...

PLOS  Current Outbreaks  by Nadia Wauquier and others                                             April 20, 2015

The initial steps of emergence and spread of a virus are critical in the development of a potential outbreak and need to be thoroughly dissected and understood in order to improve on preventative strategies. In the current West African outbreak of EVD, a unique index case has been identified, pinpointing the geographical origin of the epidemic in Guinea.

Herein, we provide an accounting of events that serve as the footprint of EVD emergence in Sierra Leone and a road map for risk mitigation fueled by lessons learned....

...Continuous active surveillance is needed and must be organized by specialized centers joined in local, regional, and international networks. Surveillance centers must be connected to public health systems and also to research teams for increased understanding and awareness to permit identification and implementation of rapid intervention strategies....

Read complete study  and see maps.