Answer:
because it can cause you severe reaction that could kill you
punta ka Google then search mo 'yang tanong mo
di'ba Sabi ni'la Alam ni google lahat ka'ya Alam ni google 'yan
The hepatitis B and the human papillomavirus (HPV) vaccines are made this way. The vaccine is composed of a protein that resides on the surface of the virus. This strategy can be used when an immune response to one part of the virus (or bacteria) is responsible for protection against disease.Jun 28, 2016
