Polio vaccine is usually provided in vials containing 10–20 doses of vaccine. A single dose of oral polio vaccine (usually two drops) contains 1,000,000 infectious units of Sabin 1 (effective against PV1), 100,000 infectious units of the Sabin 2 strain, and 600,000 infectious units of Sabin 3. The vaccine contains small traces of antibiotics—neomycin and streptomycin—but does not contain preservatives. In a generic sense, vaccination works by priming the immune system with an 'immunogen'. Stimulating immune response, by use of an infectious agent, is known as immunization. The development of immunity to polio efficiently blocks person-to-person transmission of wild poliovirus, thereby protecting
Goodbye Bruce Lee: His Last Game of Death Goodbye Bruce Lee: His Last Game of Death Goodbye Bruce Lee: His Last Game of Death, also known as The New Game of Death and Legend of Bruce Lee, is a 1975 Bruceploitation martial arts film starring Bruce Li. A young man (Bruce Li) unwittingly gets wrapped up in a money scam. When he refuses to give the cash back, the bad guys kidnap his girlfriend and hold her hostage in the Tower Of Death. Once there, he is given two options. Watch his girlfriend get thrown off the top or fight various martial artists on 7 different levels to