1. Anam Ahmad

3. Protein shell (capsid) Genome: single RNA molecule (virology.rs)

4. (The Journal of Clinical Investigation)

5. (Wikipedia)

6. Primary multiplication occurs in the gastrointestinal tract. (University of South Carolina School of Medicine)

8. (National Museum of American History)

9. Sub-Clinical: 95% of casesNon-Paralytic: 4.5% of casesParalytic: 0.5% of cases

10. (Disabled-world.com)

11. (Wikipedia)

12. (BBC News)

14. (WGBH)

15. Salks Vaccine (1955)

16. (1962)

17. (ICUBED.com)

18. (World Health Organization)

19. Number of poliovirus cases in Pakistan between 1997 and 2008(WHO)

20. (Dawn.com) (Global Eradication Initiative)

22. "CD155." Wikipedia. Wikimedia Foundation, 16 Nov. 2014. Web. 17 Nov. 2014.. Centers for Disease Control and Prevention. Centers for Disease Control and Prevention, 07 May 2012. Web. 1 Nov. 2014.. Centers for Disease Control and Prevention. Centers for Disease Control and Prevention, 11 Aug. 2014. Web. 1 Nov. 2014.. "History of Polio." History of Vaccines RSS. Web. 1 Nov. 2014.. "Jonas Salk and the War Against Polio." Innovation Hub. WGBH. Web. 1 Nov. 2014.. Landau, Elizabeth, and Madison Park. "Why Polio Hasn't Gone Away Yet." CNN. Cable News Network, 01 Jan. 1970. Web. 1 Nov. 2014.. "Lumbar Puncture." Wikipedia. Wikimedia Foundation, 16 Nov. 2014. Web. 16 Nov. 2014..

23. "NMAH | Polio: How the Poliovirus Works." NMAH | Polio: How the Poliovirus Works. Web. 1 Nov. 2014.. "Oral Polio Vaccine (OPV)." Global Polio Eradication Initiative Polio and Prevention The Vaccines. Web. 1 Nov. 2014.. "Polio Outbreak in Syria a Threat to Europe." Disabled World. Web. 1 Nov. 2014.. "Poliomyelitis (infantile Paralysis, Polio)." Poliomyelitis (infantile Paralysis, Polio). Government of New York. Web. 1 Nov. 2014.. "Poliomyelitis." Wikipedia. Wikimedia Foundation, 16 Nov. 2014. Web. 16 Nov. 2014.. "Poliovirus Proves IRES-istible in Vivo." The Journal of Clinical Investigation. Web. 1 Nov. 2014.. "Poliovirus Silently (and Not so Silently) Spreads." Virology. Web. 1 Nov. 2014.. "Poliovirus." Virology Blog RSS. Web. 1 Nov. 2014..

24. "Security for Polio Workers in Pakistan." BBC News. Web. 1 Nov. 2014.. Shah, Syed A. "Polio Vaccination Drive Kicks Off in Balochistan." Dawn. 10 Nov. 2014. Web. 11 Nov. 2014..