1. Pertussis: challenges today and for the future;JD Cherry;PLoS pathogens,2013
2. Changing pertussis epidemiology: everything old is new again;TA Clark;J Infect Dis,2014
3. How best to estimate the global burden of pertussis?;NS Crowcroft;Lancet Infect Dis,2003
4. Clinical definitions of pertussis: Summary of a Global Pertussis Initiative roundtable meeting, February 2011;JD Cherry;Clinical infectious diseases: an official publication of the Infectious Diseases Society of America,2012
5. World Health Organisation. WHO-recommended surveillance standard of pertussis [11 July 2019)]. Available from: http://www.who.int/immunization/monitoring_surveillance/burden/vpd/surveillance_type/passive/pertussis_standards/en/.