FEARS have been raised that there may not be enough monkeypox vaccines to go around amid the current outbreak.
The World Health Organization (WHO) declared the growing cases a public health emergency, with jabs being rolled out to those most at risk.
But the company that manufacturers the vaccines has now warned that the demand keeps on rising.
Drug makers Bavarian Nordic manufacture the Jynneos shot.
Vice president of the company Rolf Sass Sorensen has said firms might have to partner up to keep rolling the jabs out.
“Demand keeps rising and it’s no longer certain that we can continue to meet the demand we’re facing even with the upgrade of our existing manufacturing site in Denmark,” he told Bloomberg.
At present there are around 20 cases of the bug being picked up each day in the UK, down from 35 a week ago.
The latest data from the UK Health Security Agency (UKHSA) states that there are 3,081 confirmed cases in the UK – with a further 114 highly probably infections.
In the US there are 13,517 cases, with California and New York having the most.
Despite cases still being identified in the UK, Dame Jenny Harries, chief executive at the UKHSA said the outbreak could be platueing.
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However, she did warn that vaccines could run out in some areas before more doses arrive in a weeks’ time.
She said: “There may be a short period, probably of three or four weeks, where vaccines may run out in some areas.
“And in those cases we are ensuring that the individuals who have come forward are checked and will be invited again, so they just need to ensure that their names are available.
“And as soon as the vaccine’s in we will get it into people’s arms.”
Initially, the UK had ordered 50,000 jabs – which is enough to vaccinate 25,000 people.
A total of 150,000 have been ordered which is the maximum available.
It was previously thought that 40,000 people would need the jab – which Dr Harries said had been underestimated.
The outbreak has mainly been concentrated in men who have sex with men – so people in that community had previously been asked to come forward for the jab.
Health chiefs have warned this group to be extra vigilant to the symptoms of monkeypox, especially if they plan to have sex.
It was recently revealed that one man caught the bug when dancing at a crowded outdoor event.
He claims to have had no sexual contact with anyone, which is how the virus is typically being spread.
Doctors reported that the unidentified man in his 20s “attended a large, crowded outdoor event”.
He “had close contact with others, including close dancing, for a few hours”, according to the report published by the Centers for Disease Control and Prevention.
While other people at the event were in sleeveless tops and shorts, he was wearing trousers and a short-sleeved T-shirt, leaving only his arms exposed.
Describing his interactions with those around him, the researchers said the man had shared an e-cigarette with a woman.
He had not noticed that anyone around him had a rash or that they were unwell.
The event was not attended specifically or mostly by people who identify as gay or bisexual – the most at-risk group in the current outbreak.
Nor was it in an enclosed or indoor space, such as a rave.
The patient’s “primary risk factor was close, nonsexual contact with numerous unknown persons at a crowded outdoor event,” the researchers wrote.