The outbreak is taking place in a war zone with difficult access, among other challenges.
In an update yesterday on a Cyclospora outbreak linked to McDonald's salads, the US Centers for Disease Control and Prevention (CDC) reported 109 more cases, raising the total to 395.
The number of affected states remained at 15, and the latest illness onset was Jul 20. So far 16 people have been hospitalized, but no deaths have been reported.
The Democratic Republic of the Congo's (DRC's) ministry of health confirmed that the new Ebola outbreak in the eastern reaches of the country is caused by the Zaire Ebola virus species, according to Science magazine.
The DRC says 4 people in the eastern part of the country tested positive for Ebola virus.
The Democratic Republic of Congo (DRC) health ministry announced yesterday that it has received reports of 25 fever cases with symptoms similar to Ebola in North Kivu province in the eastern part of the country.
In a statement, it said the affected area is in the Mangina health district.
It's not known if the new Bombali virus can spread to people, but it has the potential to enter human cells.
In an update yesterday that came a day after the Democratic Republic of Congo's (DRC's) Ebola outbreak was declared over, the World Health Organization (WHO) said it now considers the risk to the region and the rest of the world as low.
The declaration comes just 11 weeks after health officials sounded the alarm about the outbreak in early May.
The Liberian case from 2015 highlights a lingering threat that the DRC will face after its outbreak is declared over.
Public Health England (PHE) yesterday released its provisional seasonal flu vaccine effectiveness (VE) estimates for the 2017-18 flu season, which revealed low overall effectiveness and no protection against H3N2, but variable findings in different age-groups.
