So if it is once every 5 years on average, it's an interesting contrast with once per year on average being…

So if it is once every 5 years on average, it's an interesting contrast with once per year on average being described as a good outcome, for Covid. I think it's fair to say Covid is an even more dangerous disease, as well. https://t.co/UugmGqQXVT

@CrabbBrendan on prevalence and frequency of infection, do we know how often malaria sufferers tend to go between infections? Obviously that may vary widely between locations too, just curious.