How are vaccines different from antibodies?

Vaccine will train the immune system to battle future infections.

antibody therapeutic to treat those who are already infected, or persons who have a medical condition that precludes them from being vaccinated

Perform surgeries is the correct answer.

Depression is lifelong, though you can get medication to with it. the difference between sadness and depression is that sadness lasts a little bit, depression last a long time and it goes on and off. people usually get depression through experiences they have been through, or genetics.