Editing Bronchiectasis (section)

=== Lung infections ===
A range of bacterial, mycobacterial, and viral lung infections are associated with the development of bronchiectasis. Bacterial infections commonly associated with bronchiectasis include [[Pseudomonas aeruginosa|''P. aeruginosa'']], [[Haemophilus influenzae|''H. influenzae'']], and [[Streptococcus pneumoniae|''S. pneumoniae'']].<ref name="Mc2013" /> [[Gram-negative bacteria]] are more commonly implicated than [[gram-positive bacteria]].<ref name="Mc2013" /> A history of [[Mycobacterium|mycobacterial]] infections such as [[tuberculosis]] can lead to damage of the airways that predisposes to bacterial colonization.<ref>{{Cite journal|last1=Kwak|first1=Hyun Jung|last2=Moon|first2=Ji-Yong|last3=Choi|first3=Yo Won|last4=Kim|first4=Tae Hyung|last5=Sohn|first5=Jang Won|last6=Yoon|first6=Ho Joo|last7=Shin|first7=Dong Ho|last8=Park|first8=Sung Soo|last9=Kim|first9=Sang-Heon|date=December 2010|title=High prevalence of bronchiectasis in adults: analysis of CT findings in a health screening program|journal=The Tohoku Journal of Experimental Medicine|volume=222|issue=4|pages=237–242|doi=10.1620/tjem.222.237 |pmid=21127394|doi-access=free}}</ref> Severe viral infections in childhood can also lead to bronchiectasis through a similar mechanism.<ref>{{Cite journal|last1=Kim|first1=C. K.|last2=Chung|first2=C. Y.|last3=Kim|first3=J. S.|last4=Kim|first4=W. S.|last5=Park|first5=Y.|last6=Koh|first6=Y. Y.|s2cid=25928060|date=February 2000|title=Late abnormal findings on high-resolution computed tomography after Mycoplasma pneumonia|journal=Pediatrics|volume=105|issue=2|pages=372–8|doi=10.1542/peds.105.2.372 |pmid=10654958}}</ref> [[Nontuberculous mycobacteria]] infections such as [[mycobacterium avium complex|''Mycobacterium avium'' complex]] are found to be a cause in some patients.<ref>{{Cite journal|last1=Dimakou|first1=Katerina|last2=Triantafillidou|first2=Christina|last3=Toumbis|first3=Michail|last4=Tsikritsaki|first4=Kyriaki|last5=Malagari|first5=Katerina|last6=Bakakos|first6=Petros|date=July 2016|title=Non CF-bronchiectasis: Aetiologic approach, clinical, radiological, microbiological and functional profile in 277 patients|journal=Respiratory Medicine|volume=116|pages=1–7|doi=10.1016/j.rmed.2016.05.001 |pmid=27296814|doi-access=free}}</ref> Recent studies have also shown [[Nocardia]] infections to been implicated in bronchiectasis.<ref>{{Cite journal|last1=Woodworth|first1=Michael H.|last2=Saullo|first2=Jennifer L.|last3=Lantos|first3=Paul M.|last4=Cox|first4=Gary M.|last5=Stout|first5=Jason E.|date=March 2017|title=Increasing Nocardia Incidence Associated with Bronchiectasis at a Tertiary Care Center|journal=Annals of the American Thoracic Society|volume=14|issue=3|pages=347–354|doi=10.1513/AnnalsATS.201611-907OC |pmid=28231023|s2cid=11712217}}</ref>