What I've heard or read so far. Interest observer only,not medically trained in any way.
Prolonged to skin to skin contact quickest way of catching, or contact with infected bodily fluids, but also airborne and by fomite. According to the medical expert on R4 / a world service.
It has a long incubation period up to 21 days and so I think but am not certain that the host potentially could be infectious before the ghastly pustules appear.
It appears to be disproportionately affecting gay men, but that could change quickly. It's spreading rapidly.
It's fatal between 1 and 10 per cent of cases in Africa. This strain has the lower mortality rate but still that's surely rather high. And the scarring is awful.
I agree up to a point that, because of Covid, this sort of story grabs more headlines than it otherwise might, but that's no reason to dismiss the whole thing out of hand.
However it does seem that smallpox vaccine is largely effective. So I am somewhat alarmed but not overly worried. Not yet anyway.