CNN  — 

Global health officials have warned that there will be a rise of Covid-19 cases in Ukraine tied to Russia’s invasion, but doctors also worry about a surge in other infectious diseases: polio, cholera and measles.

Before the war, Ukraine had low vaccination rates against those diseases, Kate White, an emergency program manager for Doctors Without Borders, told CNN on Tuesday.

Now, doctors on the ground in Ukraine worry that a rise in these vaccine-preventable infectious diseases will be another consequence of Russia’s invasion – and that even more lives could be lost to the spread of disease.

“In terms of what we call vaccine-preventable diseases, the status in Ukraine was that the population was not vaccinated to the extent which you would get herd immunity like you would in many other European countries or in the US,” White said.

Not only have vaccinations been low, the administration of routine immunizations “is no longer functioning” because the nation’s health system has been “disrupted.”

“Then, on top of that, you have the overall public health situation – so many cities where lack of access to health care is compromised, some places where they no longer have the water supply that they used to, they don’t have electricity, there’s issues with sanitation – so all of these risk factors pile up on top of each other, which means that there is an increased risk,” White said, referring to diseases like cholera that usually spread in places with inadequate water treatment, poor sanitation and inadequate hygiene. Meanwhile, the risk of polio and measles rises as more people gather and flee the area while medical supplies dwindle.