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The Ministry of Defence is looking at "expanding" a vaccination against anthrax for British Armed Forces personnel to ensure they are fully protected against potential threats.
Breathing in anthrax spores can be fatal, and the disease has been used as a biological weapon in the past.
The Defence Secretary Gavin Williamson is reported to be considering a vaccination programme for personnel deployed on short notice, according to the Times.
An MoD spokesperson told Forces News:
"We are currently considering expanding this vaccination, which has been given to UK Armed Forces personnel for decades, to make sure they are fully protected and flexible to face any potential threats wherever they emerge across an ever-changing world."
If the plans go ahead, it would bring Britain in line with other nations, including the United States, where personnel are given compulsory anthrax vaccinations before being sent abroad.