Due to microhydranencephaly, a developmental abnormality that affects the brain, Jaxon Emmett Buell was born with only half a skull. Now the baby has become an Internet sensation.

Born to Brittany and Brandon from Orlando in Florida, Jaxon Strong (nickname) was only expected to live for just a few days as most of his skull was missing. Surprisingly, the baby celebrated his first birthday on 27, August, 2015 and was wished by many people across the globe.

In a new video posted on his Facebook page 'Jaxon Strong', which has more than 2.4 lakh followers, the infant is seen saying 'hello' to his parents, who are now super excited to hear him speaking.

"Jaxon says "Hello" to Germany to the kids that drew him pictures!!!! You can't see our shocked and happy expressions behind the camera, but we are super proud parents to be able to witness Jaxon speaking yet again!!! Such a brilliant little man!!! ‪#‎JaxonStrong‬," reads the description of the 22-second clip video, which is posted to thank all the friends and fans for wishing Jaxon.

The video has gone viral with more than 500,000 social media users watching it within three days of uploading it to the social networking site.

Watch the video below:

Jaxon says "Hello" to Germany to the kids that drew him pictures!!!! You can't see our shocked and happy expressions behind the camera, but we are super proud parents to be able to witness Jaxon speaking yet again!!! Such a brilliant little man!!! #JaxonStrong

Posted by Jaxon Strong on Friday, October 2, 2015

The couple had received $122,300 from almost 2,849 people in the 12 months through gofundme.com.

The video of a seven-week-old baby saying 'Hello' while trying to mimic what his mother was saying, had earlier gone viral on social media.