Editing Whooping cough (section)

== Prognosis ==
[[File:Pertussis world map - DALY - WHO2004.svg|thumb|upright=1.3|[[Disability-adjusted life year]] for pertussis per 100,000&nbsp;inhabitants as of 2004.{{Div col|small=yes|colwidth=10em}}
{{legend|#b3b3b3|No data}}
{{legend|#ffff65|Less than 50}}
{{legend|#fff200|50–100}}
{{legend|#ffdc00|100–150}}
{{legend|#ffc600|150–200}}
{{legend|#ffb000|200–250}}
{{legend|#ff9a00|250–300}}
{{legend|#ff8400|300–350}}
{{legend|#ff6e00|350–400}}
{{legend|#ff5800|400–450}}
{{legend|#ff4200|450–500}}
{{legend|#ff2c00|500–550}}
{{legend|#cb0000|More than 550}}
{{div col end}}]]

While most healthy older children and adults fully recover, infection in newborns is particularly severe. Pertussis is fatal in an estimated 0.5% of US infants under one year of age.<ref name="complications">{{cite web |title=Pertussis: Complications |url=https://www.cdc.gov/pertussis/about/complications.html |publisher=[[Centers for Disease Control and Prevention]] |access-date=24 August 2012 |url-status=live |archive-url=https://web.archive.org/web/20120814112442/http://www.cdc.gov/pertussis/about/complications.html |archive-date=14 August 2012 }}</ref> First-year infants are also more likely to develop complications, such as [[apnea]]s (31%), pneumonia (12%), seizures (0.6%) and [[encephalopathy]] (0.15%).<ref name="complications"/> This may be due to the ability of the bacterium to suppress the [[immune system]].<ref>{{cite journal | vauthors = Carbonetti NH | title = Pertussis toxin and adenylate cyclase toxin: key virulence factors of Bordetella pertussis and cell biology tools | journal = Future Microbiology | volume = 5 | issue = 3 | pages = 455–69 | date = March 2010 | pmid = 20210554 | pmc = 2851156 | doi = 10.2217/fmb.09.133 }}</ref>