The web or network of exposed people can quickly grow from one case if steps aren't taken early to avoid further onward transmission.
The current outbreak refuses to give in to efforts by an international team of health care workers, armed with vaccines and treatment that did not even exist during previous episodes.
The Ebola outbreak in the DRC has been declared a Public Health Emergency of International Concern. What does this mean for the outbreak response?
Borders are porous between North Kivu province of the DRC and neighbouring countries, so the potential for spread is highly likely.
The current Ebola outbreak in the DRC is devastating vulnerable communities already affected by displacement and violence.
The high stress conditions of an outbreak can spread a dysfunctional culture among those working to fight it. A survey after the 2015 Ebola epidemic quantified the issue – and suggests a better way.
Four new Ebola treatments are being tried out in the DRC.
Without the current experimental vaccine the Ebola outbreak in the DRC has the potential to spiral out of control.
Banning travel might not always be the best way to respond to a disease outbreak.
Cuban doctors have specific expertise in dealing with diseases like malaria which remains a major problem in Kenya.
Recent discoveries of ancient viruses are helping scientists understand their origins.
The response to the latest ebola outbreak in the DRC has been rapid, well coordinated and well resourced.
By tackling local threats and controlling existing diseases, countries are able to build the capacity needed to deal with future emerging disease threats.
There are a number of challenges that the World Health Organisation's new leader, Ethiopian-born Tedros Ghebreyesus, will have to navigate during his tenure.
The Ebola virus is known to occur in the Democratic Republic of Congo and outbreaks are not entirely unexpected. But health authorities must take swift action to contain the outbreak.
The power to overcoming Ebola was in public awareness by performing simple yet basic infection prevention and control measures like washing hands, isolation and reporting suspected cases.
An active outbreak of a type of bird flu in China raises concerns about worldwide pandemics. Ebola and Zika viruses still threaten. Here's why this is not the time to cut funding.
In the future, consumers in the developed world could choose to purchase products from the companies that do the most to promote global health.
After the Ebola outbreak claimed the lives of thousands across West Africa – Tom Solomon returns to talk to those still working in the aftermath.
There are a number of stumbling blocks to intra African collaboration. These must be addressed to ensure that research is not duplicated and that findings are shared.