Ebola is spreading again — and the world is on alert

With suspected Ebola cases crossing 900 in parts of Central and East Africa, countries are once again tightening border screening and public health monitoring amid fears of cross-border spread.

The latest outbreak, centred around parts of the Democratic Republic of Congo (DRC), Uganda and neighbouring regions, has now crossed 900 suspected cases, according to recent health updates. The World Health Organization (WHO) has declared the situation a Public Health Emergency of International Concern (PHEIC), its highest level of global health alert.

Countries including India have responded by tightening airport screening, increasing surveillance and issuing travel advisories for affected African nations.

The developments have once again brought attention to one of the world’s deadliest and most feared viral diseases.

The virus first identified in 1976

Ebola virus disease was first identified in 1976 during outbreaks in what is now the Democratic Republic of Congo and Sudan. The virus was named after the Ebola River in Congo, near one of the first affected villages.

Scientists believe fruit bats are the virus’s most likely natural hosts. Human infections are believed to begin through contact with infected animals before spreading between people through bodily fluids such as blood, saliva, sweat, vomit and other secretions.

Unlike airborne viruses such as COVID-19, Ebola does not spread through normal breathing or casual proximity. But once outbreaks begin, transmission can escalate rapidly in households, hospitals and caregiving environments where protective measures are absent.

Why Ebola continues to alarm health agencies

Ebola’s fear factor comes largely from the severity of the illness and the speed with which outbreaks can become fatal.

Symptoms usually begin with fever, weakness, headaches and muscle pain before progressing in severe cases to vomiting, diarrhoea, organ failure and internal bleeding.

Some Ebola outbreaks have recorded fatality rates of up to 90%, though mortality varies depending on the strain involved, the speed of detection and the quality of healthcare available.

The current outbreak has drawn additional concern because it involves the Bundibugyo strain, for which approved targeted vaccines and treatments remain limited compared to earlier Ebola variants.

Health agencies are also monitoring the outbreak closely because of cross-border movement and weak healthcare infrastructure in some affected regions.

The outbreak that exposed global unpreparedness

Although Ebola outbreaks had occurred for decades, the virus entered global consciousness during the massive West Africa epidemic between 2014 and 2016.

The outbreak affected Guinea, Liberia and Sierra Leone, infecting more than 28,000 people and killing over 11,000, according to WHO estimates.

Healthcare systems collapsed under pressure. Hospitals ran short of beds and protective equipment, while hundreds of healthcare workers died treating infected patients.

The outbreak also exposed major weaknesses in global outbreak preparedness.

After the epidemic, countries expanded airport screening systems, emergency disease surveillance networks, rapid-response medical teams and contact-tracing infrastructure. The WHO also faced criticism over delays in declaring the emergency, leading to reforms in how international outbreaks are assessed and managed.

Several public health mechanisms later widely used during the COVID-19 pandemic had already been strengthened after Ebola.

India steps up surveillance

India has now issued advisories urging citizens to avoid non-essential travel to affected African countries, particularly Uganda, the Democratic Republic of Congo and South Sudan.

Airport screening and health monitoring systems have also been strengthened for travellers arriving from affected regions. Karnataka and some other states have additionally increased surveillance and advised returning travellers to self-monitor for symptoms.

Officials have clarified that India currently has no confirmed Ebola cases.

The response is largely precautionary, but authorities remain cautious because delayed detection has historically allowed Ebola outbreaks to spread rapidly.

Why Ebola still creates global panic

Part of Ebola’s psychological impact comes from how visible and intense severe outbreaks can become.

Unlike slower-moving public health emergencies, Ebola outbreaks often create immediate fear because infections can spread quickly within families and hospitals before containment systems are activated. Images of isolation wards and healthcare workers in full protective gear have become strongly associated with the virus worldwide.

The virus has also repeatedly exposed inequalities in healthcare infrastructure, particularly in poorer regions where access to emergency care, isolation facilities and medical equipment remains limited.

At the same time, health authorities stress that Ebola is far less contagious than respiratory viruses such as COVID-19 or influenza. Outbreaks can usually be controlled through rapid isolation, protective equipment, contact tracing and community awareness if response systems begin early.

That is why governments worldwide are focusing on surveillance and containment rather than panic.

But with suspected cases now crossing 900 and multiple countries increasing emergency monitoring, the latest outbreak is once again testing how prepared global health systems really are.