There is a vaccine which is fairly effective at providing protection against Hepatitis B infection, however this vaccine is only 95% effective, and for those exposed at birth the likleyhood of developing the chronic is very high (>90%). This results in a lot of people still having this disease, over 350 million worldwide!

Correct! A portion of the 350 million people consist of baby bloomers in developed countries because no vaccine was available back in the old days. And of course, another portion are people and children who live in underdeveloped countries and do not have access to the vaccine.

Hep B is actually much more contagious than HIV.

So vaccinate guys! VACCINATE!!!!

From someone whose dad died from liver cancer which is in some way caused by chronic Hep B

And trust me, it is horrible