Hepatitis B is the most common serious liver infection in the world. It is caused by the hepatitis B virus that attacks and injures the liver. WHO estimates that 296 million people were living with … [+4699 chars]
Globally, childhood routine vaccines are either recommended or mandatorily administered to children from age zero to 5 years or more, but in Nigeria some of these vaccines are not funded by the Feder… [+12265 chars]
