I'm an American going to Havana tomorrow until Friday. Here's to hoping my head doesn't get long-range microwaved...?
The article only reported cases of diplomatic personnel being affected, but I found some other sources stating that tourists were also affected, but those sources are not as reliable as this one.
Anyway, with the number of tourists traveling there, it is very unlikely that you might get affected.
[1] https://travel.state.gov/content/travel/en/international-tra...