Markus has the Chickenpot vacinne when he is 13 months. Last Friday I discovered there are several red dots on his arm just like mosquito bit and I think it's because the babysitter bring him to the playground without any prevention . Markus is still active and without another symptoms in Sat & Sun . Monday when I pick him up after work , the babysitter told me that the red dots look like chickenpot so I bring him to see the doctor at once. After the doctor observation , he said it's "Chickenpot" . He said even Markus has the vaccine already he still has 10 % infected by this disease. He said he's lucky as he has the vacinne already otherwise the symptoms may be more serious. The doctor said Markus will recover soon and up to today there are around 10 red dots on his arms without any increase. My suggestion is take the chickenpot vacinne at once and pay attention on our baby even they have the vacinne already as they still have chance to be infected.