Stay safe [edit]. Tangier is a relatively safe and peaceful city. The only trouble you may encounter is the persistent touts whom you should ignore, or the con-men ready to overcharge you. You will encounter these characters mostly in and around the medina and along the beach front promenade.tay safe [edit]. Tangier is a relatively safe and peaceful city. The only trouble you may encounter is the persistent touts whom you should ignore, or the con-men ready to overcharge you. You will encounter these characters mostly in and around the medina and along the beach front promenade.
Examples of live (example attenuated) vaccines include: Viral: measles vaccine, mumps vaccine, rubella vaccine, Live attenuated influenza vaccine (the seasonal flu nasal spray and the 2009 H1N1 flu nasal spray), chicken pox vaccine, smallpox vaccine, oral polio vaccine (Sabin), rotavirus vaccine, and yellow fever vaccine.
An attenuated vaccine is a vaccine created by reducing the virulence of a pathogen, but still keeping it viable (or live). Attenuation takes an infectious agent and alters it so that it becomes harmless or less virulent. These vaccines contrast to those produced by killing the virus (inactivated vaccine).