“The virus may be mutating and different strains may have different characteristics as to how it is spread.”
May be scientifically mutated into various strains and propagated into the countries. A different strain suddenly appears at the same time in another country.
The NIH and CDC are incompetent boobs. Nitwit was on TV “recommending” colleges and other organizations “screen” overseas students and personnel for the disease. Really? “Do you have the deadly Ebola disease which would result in you being denied admission or a position”? “No, I don’t, I feel really fine”.
The outbreak in the Congo is the same strain of virus--Ebola Zaire--but it is a different clade, originating from a different animal population than the virus that started the outbreak in West Africa.
The Congo has experience with Ebola outbreaks, and the area where the outbreak occurred is remote. For these reasons, the Congo outbreak is likely to be contained fairly quickly--while we are still struggling to contain the West Africa outbreak.