3 ms·
> and second infections being more serious than the first. I vaguely think that there are some diseases like this (or perhaps I am just thinking of allergen sen
by cesarb 7y ago
> and second infections being more serious than the first. I vaguely think that there are some diseases like this (or perhaps I am just thinking of allergen sensitization.)
You might be thinking of dengue (which is endemic in my home region). There are four strains of the dengue virus; if you are infected by one strain, and had in the past been infected by a different strain, it increases the risk of the more serious hemorrhagic dengue.
- mannykannot 7y agoThanks, that is interesting. As far as I know, we are only dealing with one strain here, though there have been enough mutations that it is clear that most cases in New York came via Europe. https://www.nytimes.com/2020/04/08/us/coronavirus-live-updates.html?searchResultPosition=24#link-1316a5b0 https://www.nytimes.com/2020/04/08/us/coronavirus-live-updat...
- ficklepickle 7y agoMy dad caught dengue. It was nasty. Fortunately not the hemmorhagic variety. It's at least as scary as malaria, but with much less research devoted to it.
- jhayward 7y agoYes, this is Antibody Dependent Enhancement[1], which is also something that any vaccine will have to rule out through human trials. These sorts of immune system traps and pitfalls are why vaccine testing takes so long. [1] https://en.wikipedia.org/wiki/Antibody-dependent_enhancement https://en.wikipedia.org/wiki/Antibody-dependent_enhancement