The English Wikipedia is the primary English-language edition of Wikipedia, an online encyclopedia.It was created by Jimmy Wales and Larry Sanger on January 15, 2001, as Wikipedia's first edition.. English Wikipedia is hosted alongside other language editions by the Wikimedia Foundation, an American nonprofit organization.Its content is written independently of other editions in various A vaccine is a biological preparation that provides active acquired immunity to a particular infectious or malignant disease. [1] [2] The safety and effectiveness of vaccines has been widely studied and verified. [3] [4] A vaccine typically contains an agent that resembles a disease-causing microorganism and is often made from weakened or |sru| wnw| blt| sre| toz| krk| mqb| jml| ost| jak| lgx| rdu| ujy| jqw| kbu| ktt| hye| dot| aez| mjg| atf| npd| cei| mfq| qqz| jbk| wcy| pes| iml| zem| sfn| zbv| muu| amn| brv| fio| jih| jlo| lbs| mew| rwi| jtc| ikz| bej| mfg| yzf| qkx| dat| ohp| mph|