

A leading cancer expert, who was described as a “pioneer” in his field by Prince William, has died suddenly after receiving a routine yellow fever vaccination.
Martin Gore, 67, died Thursday morning after receiving the vaccine, which is recommended to travelers visiting sub-Saharan Africa, most of South America, and parts of Central American and the Caribbean.
CNN reports that London’s Royal Marsden NHS Foundation Trust, where Gore worked for more than 30 years, expressed its “deep sadness” following the announcement of his death.
“Martin was at the heart of The Royal Marsden’s life and work in research, treatment and the training of our new oncologists,” the hospital said in a statement. “His contribution as medical director for 10 years, a trustee of The Royal Marsden Cancer Charity, and as a clinician is unparalleled.”
Gore’s death casts light on the heightened risk associated with the yellow fever vaccine and the over-60 demographic. Typical side effects of the vaccine include headaches, muscle pain, mild fever and soreness at the injection site, according to the NHS.
However, the vaccinations can, in rare circumstances, cause more severe side effects, including allergic reactions and problems affecting the brain or organs. The NHS estimates that these reactions occur less than 10 times for every million doses.
The WHO reported that all cases of viscerotropic disease — a rare but dangerous side effect of yellow fever vaccinations where an illness similar to wild-type yellow fever proliferates in multiple organs — have occurred in primary vaccines, starting two to five days after vaccination.
The Centers for Disease Control and Prevention — the US government’s health protection agency — warns that viscerotropic disease can lead to multiple organ dysfunction syndrome or multi-organ failure and death in close to 60% of cases.
The WHO also told CNN: “While the risk of adverse effects is higher in persons aged over 60 years, the overall risk remains low.” The organization nevertheless noted that a “risk-benefit assessment” for individuals aged over 60 should be performed, taking into account the risk of acquiring the disease.