I. Rudan, L. Tomaskovic, C. Boschi-pinto, and H. Campbell, Global estimate of the incidence of clinical pneumonia among children under five years of age, Bull World Health Organ, vol.82, pp.895-903, 2004.

J. Scott, W. Brooks, J. Peiris, D. Holtzman, and E. Mulholland, Pneumonia research to reduce childhood mortality in the developing world, Journal of Clinical Investigation, vol.118, issue.4, pp.1291-1300, 2008.
DOI : 10.1172/JCI33947

I. Michelow, K. Olsen, J. Lozano, N. Rollins, L. Duffy et al., Epidemiology and Clinical Characteristics of Community-Acquired Pneumonia in Hospitalized Children, PEDIATRICS, vol.113, issue.4, pp.701-707, 2004.
DOI : 10.1542/peds.113.4.701

S. Olsen, S. Thamthitiwat, S. Chantra, M. Chittaganpitch, A. Fry et al., Incidence of respiratory pathogens in persons hospitalized with pneumonia in two provinces in Thailand, Epidemiology and Infection, vol.53, issue.12, pp.1381811-1822, 2010.
DOI : 10.1016/j.ijid.2005.01.007

A. Fry, X. Lu, S. Olsen, M. Chittaganpitch, P. Sawatwong et al., Human Rhinovirus Infections in Rural Thailand: Epidemiological Evidence for Rhinovirus as Both Pathogen and Bystander, PLoS ONE, vol.196, issue.3, p.17780, 2011.
DOI : 10.1371/journal.pone.0017780.s001

K. Mulholland, Perspectives on the burden of pneumonia in children, Vaccine, vol.25, issue.13, pp.2394-2397, 2007.
DOI : 10.1016/j.vaccine.2006.09.007

I. Rudan, J. Lawn, S. Cousens, A. Rowe, C. Boschi-pinto et al., H: Gaps in policyrelevant information on burden of disease in children: a systematic review, Lancet, issue.9476, pp.3652031-2040, 2005.

J. Mizgerd, Acute Lower Respiratory Tract Infection, New England Journal of Medicine, vol.358, issue.7, pp.716-727, 2008.
DOI : 10.1056/NEJMra074111

S. Bellau-pujol, A. Vabret, L. Legrand, D. J. Gouarin, S. Petitjean-lecherbonnier et al., Development of three multiplex RT-PCR assays for the detection of 12 respiratory RNA viruses, Journal of Virological Methods, vol.126, issue.1-2, pp.53-63, 2005.
DOI : 10.1016/j.jviromet.2005.01.020

C. Buecher, S. Mardy, W. Wang, V. Duong, S. Vong et al., Use of a multiplex PCR/RT-PCR approach to assess the viral causes of influenza-like illnesses in Cambodia during three consecutive dry seasons, Journal of Medical Virology, vol.33, issue.10, pp.821762-1772, 2010.
DOI : 10.1002/jmv.21891

URL : https://hal.archives-ouvertes.fr/pasteur-00808228

P. Murray and J. Washington, Microscopic and bacteriologic analysis of expectorated sputum, Mayo Clin Proc, vol.50, issue.6, pp.339-344, 1975.

J. Song, W. Oh, C. Kang, D. Chung, K. Peck et al., Asian Network for Surveillance of Resistant Pathogens Study Group. Epidemiology and clinical outcomes of community-acquired pneumonia in adult patients in Asian countries: a prospective study by the Asian network for surveillance of resistant pathogens, Int J Antimicrob Agents, issue.2, pp.31107-114, 2008.

Y. Ngeow, S. Suwanjutha, T. Chantarojanasriri, F. Wang, M. Saniel et al., An Asian study on the prevalence of atypical respiratory pathogens in community-acquired pneumonia, International Journal of Infectious Diseases, vol.9, issue.3
DOI : 10.1016/j.ijid.2004.06.006

K. Todar, Mycobacterium tuberculosis and Tuberculosis Available from: Online Textbook of Bacteriology website, 2009.

B. Marais, R. Gie, H. Schaaf, A. Hesseling, C. Obihara et al., The natural history of childhood intra-thoracic tuberculosis: a critical review of literature from the prechemotherapy era, Int J Tuberc Lung Dis, vol.8, pp.392-402, 2004.

D. Moore, K. Klugman, and S. Madhi, Role of Streptococcus pneumoniae in Hospitalization for Acute Community-acquired Pneumonia Associated With Culture-confirmed Mycobacterium tuberculosis in Children, The Pediatric Infectious Disease Journal, vol.29, issue.12, pp.291099-291103
DOI : 10.1097/INF.0b013e3181eaefff

J. Scott, A. Hall, C. Muyodi, B. Lowe, M. Ross et al., Aetiology, outcome, and risk factors for mortality among adults with acute pneumonia in Kenya, The Lancet, vol.355, issue.9211, pp.3551225-1230, 2000.
DOI : 10.1016/S0140-6736(00)02089-4

J. Pedrosa, B. Saunders, R. Appelberg, I. Orme, M. Silva et al., Neutrophils Play a Protective Nonphagocytic Role in Systemic Mycobacterium tuberculosis Infection of Mice, Infection and Immunity, vol.68, issue.2, pp.577-583, 2000.
DOI : 10.1128/IAI.68.2.577-583.2000

R. Overtoom, V. Khieu, S. Hem, P. Cavailler, V. Te et al., A first report of pulmonary melioidosis in Cambodia, Transactions of the Royal Society of Tropical Medicine and Hygiene, vol.102, issue.1, pp.21-25, 2008.
DOI : 10.1016/S0035-9203(08)70007-5

URL : https://hal.archives-ouvertes.fr/pasteur-00702467

V. Wuthiekanun, N. Pheaktra, H. Putchhat, L. Sin, B. Sen et al., Antibodies in Children, Cambodia, Emerging Infectious Diseases, vol.14, issue.2, pp.301-303, 2008.
DOI : 10.3201/eid1402.070811

Y. Liu, M. Chen, T. Zhao, H. Wang, R. Wang et al., Causative agent distribution and antibiotic therapy assessment among adult patients with community acquired pneumonia in Chinese urban population, BMC Infectious Diseases, vol.8, issue.suppl 3, pp.31-49, 2009.
DOI : 10.1517/13543784.8.2.181

N. Miyashita, H. Fukano, K. Mouri, M. Fukuda, K. Yoshida et al., Community-acquired pneumonia in Japan: a prospective ambulatory and hospitalized patient study, Journal of Medical Microbiology, vol.54, issue.4, pp.395-400, 2005.
DOI : 10.1099/jmm.0.45920-0

N. Johansson, M. Kalin, A. Tiveljung-lindell, C. Giske, and J. Hedlund, Etiology of Community???Acquired Pneumonia: Increased Microbiological Yield with New Diagnostic Methods, Clinical Infectious Diseases, vol.50, issue.2, pp.202-209, 2010.
DOI : 10.1086/648678

P. Charles, W. M. Fuller, A. Stirling, R. Wright, A. Korman et al., Australian CAP Study Collaboration: The etiology of community-acquired pneumonia in Australia: why penicillin plus doxycycline or a macrolide is the most appropriate therapy, Clin Infect Dis, issue.10, pp.461513-1521, 2008.

G. Lui, M. Ip, N. Lee, T. Rainer, S. Man et al., Role of 'atypical pathogens' among adult hospitalized patients with communityacquired pneumonia, Respirology, issue.8, pp.141098-1105, 2009.

G. Siberry, K. Brahmadathan, R. Pandian, M. Lalitha, M. Steinhoff et al., Comparison of different culture media and storage temperatures for the long-term preservation of Streptococcus pneumoniae in the tropics, Bull World Health Organ, vol.79, issue.1, pp.43-47, 2001.

H. Nair, D. Nokes, B. Gessner, M. Dherani, S. Madhi et al., Global burden of acute lower respiratory infections due to respiratory syncytial virus in young children: a systematic review and meta-analysis, The Lancet, vol.375, issue.9725, pp.3751545-1555, 2010.
DOI : 10.1016/S0140-6736(10)60206-1

H. Nair, W. Brooks, M. Katz, A. Roca, J. Berkley et al., H: Global burden of respiratory infections due to seasonal influenza in young children: a systematic review and metaanalysis, Lancet, issue.9807, pp.3781917-1930, 2011.

F. Speizer, S. Horton, J. Batt, A. Slutsky, J. Breman et al., Respiratory diseases of adults, Disease Control Priorities in Developing Countries, 2006.

F. Hayden, Respiratory viral threats, Current Opinion in Infectious Diseases, vol.19, issue.2, pp.169-178, 2006.
DOI : 10.1097/01.qco.0000216628.51563.b1

W. Busse, R. Lemanske, . Jr, and J. Gern, Role of viral respiratory infections in asthma and asthma exacerbations, The Lancet, vol.376, issue.9743, pp.826-834, 2010.
DOI : 10.1016/S0140-6736(10)61380-3

A. Falsey, M. Criddle, and E. Walsh, Detection of respiratory syncytial virus and human metapneumovirus by reverse transcription polymerase chain reaction in adults with and without respiratory illness, Journal of Clinical Virology, vol.35, issue.1, pp.46-50, 2006.
DOI : 10.1016/j.jcv.2005.04.004

D. Jackson, The role of rhinovirus infections in the development of early childhood asthma, Current Opinion in Allergy and Clinical Immunology, vol.10, issue.2, pp.133-138, 2010.
DOI : 10.1097/ACI.0b013e3283352f7c

I. Van-benten, L. Koopman, B. Niesters, W. Hop, B. Van-middelkoop et al., Predominance of rhinovirus in the nose of symptomatic and asymptomatic infants, Pediatric Allergy and Immunology, vol.110, issue.5, pp.363-370, 2003.
DOI : 10.1002/jmv.2161

A. Van-gageldonk-lafeber, M. Heijnen, A. Bartelds, M. Peters, S. Van-der-plas et al., A Case-Control Study of Acute Respiratory Tract Infection in General Practice Patients in The Netherlands, Clinical Infectious Diseases, vol.41, issue.4, pp.490-497, 2005.
DOI : 10.1086/431982

M. Van-kraaij, L. Van-elden, A. Van-loon, K. Hendriksen, L. Laterveer et al., Frequent Detection of Respiratory Viruses in Adult Recipients of Stem Cell Transplants with the Use of Real-Time Polymerase Chain Reaction, Compared with Viral Culture, Clinical Infectious Diseases, vol.40, issue.5, pp.662-669, 2005.
DOI : 10.1086/427801

D. Jackson and S. Johnston, The role of viruses in acute exacerbations of asthma, Journal of Allergy and Clinical Immunology, vol.125, issue.6, pp.1178-1187, 2010.
DOI : 10.1016/j.jaci.2010.04.021

N. Künzli, R. Kaiser, S. Medina, M. Studnicka, C. O. Filliger et al., Public-health impact of outdoor and traffic-related air pollution: a European assessment, The Lancet, vol.356, issue.9232, pp.356795-801, 2000.
DOI : 10.1016/S0140-6736(00)02653-2

M. Becklake, Wheeze, asthma diagnosis and medication use in developing countries, Thorax, vol.60, issue.11, pp.885-887, 2005.
DOI : 10.1136/thx.2004.035980

R. Pauwels and K. Rabe, Burden and clinical features of chronic obstructive pulmonary disease (COPD), The Lancet, vol.364, issue.9434, pp.613-620, 2004.
DOI : 10.1016/S0140-6736(04)16855-4

M. Vray, Y. Germani, S. Chan, N. Duc, B. Sar et al., Clinical features and etiology of pneumonia in acid-fast bacillus sputum smear-negative HIV-infected patients hospitalized in Asia and Africa, AIDS, vol.22, issue.11, pp.221323-1332, 2008.
DOI : 10.1097/QAD.0b013e3282fdf8bf

P. Moszynski, Cambodia cracks down on illegal drug vendors in bid to counter antimalarial resistance, BMJ, vol.340, issue.may17 1, 2010.
DOI : 10.1136/bmj.c2622

M. Behr, S. Warren, H. Salamon, P. Hopewell, A. Ponce-de-leon et al., Transmission of Mycobacterium tuberculosis from patients smear-negative for acid-fast bacilli, The Lancet, vol.353, issue.9151, pp.353444-449, 1999.
DOI : 10.1016/S0140-6736(98)03406-0

A. Do, H. Van-doorn, M. Nghiem, J. Bryant, T. Hoang et al., Viral Etiologies of Acute Respiratory Infections among Hospitalized Vietnamese Children in Ho Chi Minh City, 2004???2008, PLoS ONE, vol.1, issue.3, p.18176, 2004.
DOI : 10.1371/journal.pone.0018176.t006