1. Emergence of medicine for mass gatherings: lessons from the Hajj;Memish;Lancet Infect Dis,2012
2. Severe sepsis and septic shock at the Hajj: etiologies and outcomes;Baharoon;Travel Med Infect Dis,2009
3. Health risks at the Hajj;Ahmed;Lancet,2006
4. World Health Organization. Middle East respiratory syndrome coronavirus (MERS-CoV) summary and literature update–as of 11 June 2014. http://www.who.int/csr/don/2014_07_23_mers/en/. [last accessed on 28.08.14].
5. Has Hajj-associated MERS-CoV transmission occurred? The case for effective post-Hajj surveillance for infection;Rashid;Clin Microbiol Infect,2013