Whether hepatitis B (or any disease) is considered epidemic or endemic depends on its prevalence in the population. Hepatitis B is endemic in China where 8-10 % of the population is chronically infected but endemic in the US where the prevalence is less than 1%.
Trichomoniasis is not an epidemic disease. It is endemic.
Diseases that had been epidemic became endemic in urban centers.
PANDEMIC
"endemic"
The causative agent for Hepatitis B is Hepatitis B virus.
An epidemic is a sudden outbreak of a disease (or metaphorically, something that is being compared to a disease, such as an epidemic of crime). A disease can also be described as endemic, which means that there is some incidence of that disease which is always present and doesn't go away.
There is no harm or benefit from giving hepatitis B vaccine to someone with hepatitis B.
Hepatitis is inflammation in the liver caused by the virus hepatitis B.
The hepatitis B illness is caused by the hepatitis B virus, a species of the genus Orthohepadnavirus.
There's a Hepatitis B vaccine that can prevent it.
Usually caused by hepatitis B virus.
Since Hepatitis B vaccine only protects against Hepatitis B, the only thing the vaccine controls is Hepatitis B infections.