World Health Organization Director-General Tedros Adhanom Ghebreyesus said Tuesday there is a rapid increase in Ebola cases and deaths in the Democratic Republic of Congo and Uganda.

The situation is critical because the outbreak involves the Bundibugyo strain of Ebola, which currently has no approved vaccine or treatment [1, 3].

The outbreak is centered in the Ituri province of the eastern Democratic Republic of Congo and has spread into neighboring Uganda [1, 3]. Tedros said he is deeply concerned about the scale and speed of the virus's transmission. He said the number of cases is rising faster than health officials initially estimated.

Reports on the death toll vary across sources. The Democratic Republic of Congo reports 134 dead [3], while other reports indicate at least 130 [1] or 131 [4] people have died.

Infections are also climbing quickly. Some reports cite 531 confirmed or suspected infections [4], while the WHO has reported at least 500 suspected cases [5].

"I am deeply concerned about the scale and speed of this outbreak," Tedros said [1].

He said there is a need for immediate international coordination to contain the virus before it spreads further across borders. "We are seeing a rapid increase in cases and deaths, and we must act quickly," Tedros said [2].

The Bundibugyo strain differs from other Ebola viruses, complicating the medical response as clinicians cannot rely on existing stockpiles of vaccines used in previous outbreaks. This lack of pharmaceutical intervention increases the reliance on strict containment, and contact tracing in the affected regions.

"I am deeply concerned about the scale and speed of this outbreak."

The lack of a specific vaccine for the Bundibugyo strain transforms a manageable public health crisis into a high-risk emergency. Because the virus is crossing borders between the DRC and Uganda, the window for containment is narrowing, placing immense pressure on local healthcare infrastructures that lack specialized treatments.