b. Adenovirus
c. H. Influenzae
d. Mycoplasma
If you went for RSV, you are 'absolutely wrong'.
Answer: (B) Adenovirus
References :
1) Nelson 18th 1781
"Bronchiolitis Obliterans is a rare, chronic lung disease of the bronchioles and smaller airways. BO most commonly occurs in the pediatric population after respiratory infections (Adenovirus, Mycoplasma, measles, Legionella, influenza, Pertrusis). "
2) "Adenoviruses were the most common etiologic agents identified serologically."
Postinfectious Bronchiolitis obliterans in Children: Clinical and Radiological Profile and Prognostic Factors
Ebru Yalçna, Deniz Dorua, Mithat Halilolub, Uur Özçelika, Nural Kipera, Ayhan Göçmena
http://content.karger.com/ProdukteDB/produkte.asp?Doi=72900
3)"Bronchiolitis obliterans complicated by infections, Stevens–Johnson syndrome was found in eight and two patients, respectively. In children with post-infectious BO, adenoviruses were the most common etiologic agents (7/8). Among them, six patients needed intensive management and five patients needed mechanical ventilation. All patients presented persistent dyspneic respirations and wheezing since the initial lung infection. Initial focal atelectasis (n = 3) on chest radiographs progressed to atelectasis/lobar collapse (n = 8) when the diagnosis of BO was made. After adequate supportive management, atelectatic bronchiectasis was the most common complication (n = 5)."
Bronchiolitis obliterans in children: Clinical presentation, therapy and long-term follow-up
Chih-Yung Chiu,
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