We go to a lot of birthday parties and I was watching a tv show recently where the actors (who were CSI types) said they'd never eat birthday cake after the candles had been blown out, because of all that "DNA". it made me laugh but now has me wondering?
If someone, or a lot of someones, blow out the candles on a cake, obviously there will be a lot of saliva on the cake - and then we all eat it!! Gross, when you think about it but nearly everyone eats the cake! But could it lead to illness, or transmit a disease?
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