Atualização em pneumonia comunitária viral

Neto, Ozéas Galeno da Rocha; Leite, Ricardo Ferreira; Baldi, Bruno Guedes

doi:10.1590/s0104-42302013000100015

Cited by 6 publications

(4 citation statements)

References 41 publications

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“…However 85 samples infected with INFB were detected in these same subjects (Table 2). INFB usually causes disease in populations confined to closed spaces, such as daycare centers and boarding schools [15]. Our results show the positive percentages of INFB in the preschool and school children groups were higher than that in the infants and toddlers groups (p < 0.01) (Table 3).…”

Section: Discussionmentioning

confidence: 61%

The aetiology of community associated pneumonia in children in Nanjing, China and aetiological patterns associated with age and season

Chen

Jia

et al. 2015

BMC Public Health

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BackgroundViral and atypical bacterial pathogens play an important role in respiratory tract infection. Using the Pneumoslide IgM test, the presented study explored the aetiology of community-acquired pneumonia and investigated further whether there was an association between age or season and aetiological organisms.MethodsSerum samples, taken between August 2011 and August 2013, from patients with CAP were tested with the Pneumoslide IgM kit. The Pneumoslide IgM technology can simultaneously diagnose 9 viral and atypical bacterial pathogens: Legionella pneumophila serogroup 1 (LP1), Mycoplasma pneumoniae (MP), Coxiella burnetii (COX), Chlamydophila pneumonia (CP), Adenovirus (ADV), Respiratory syncytial virus (RSV), Influenza A (INFA), Influenza B (INFB), Parainfluenza 1, 2 and 3 (PIVs). The data was analyzed by using Statistical Package for the Social Sciences for Windows (SPSS, version 11.0).ResultsOf a total of 1204 serum samples tested, 624 samples were positive. M. pneumoniae was the dominant pathogen, with INFB, PIVs, and RSV ranking second to fourth, respectively. The positive percentages of MP, INFB, PIVs and RSV were found to be associated with age, especially MP, INFB and PIVs. The positive percentages of MP, PIVs and RSV were also found to be associated with season. The positive percentage of MP in autumn was the highest. The positive percentages of LP1 in August and September, ADV in June and INFB in March were relatively higher than that in other months.ConclusionsThe results show there were 4 main viral and atypical bacterial pathogens causing CAP in our study. Some pathogens were found to be associated with age and season. M. pneumoniae was the most predominant pathogen among these 9 pathogens. It is necessary to take preventative measures in order to prevent the spread of these pathogens in susceptible age groups during peak season.

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Section: Discussionmentioning

confidence: 61%

The aetiology of community associated pneumonia in children in Nanjing, China and aetiological patterns associated with age and season

Chen

Jia

et al. 2015

BMC Public Health

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“…[ 6 , 7 , 9 – 12 ] However, positivity in virus PCR, which indicates the presence of viral genomes, may not always imply an active infection, because false positivity is possible in the cases of past infection or colonization by the virus. [ 13 ] However, positive culture of virus, which demonstrates the presence of viable virus, strongly suggests active infection. We believe that identification of living virus by culture from BAL is the most reliable method of proving a virus to be the pathogen.…”

Section: Discussionmentioning

confidence: 99%

“…[ 4 – 12 ] Parainfluenza virus (PIV), influenza virus, and respiratory syncytial virus (RSV) are the 3 most common respiratory viruses documented in LRTI and are the important pathogens which can potentially lead to fatal outcomes particularly in immunocompromised patients. [ 13 – 18 ]…”

Section: Introductionmentioning

confidence: 99%

CT findings in viral lower respiratory tract infections caused by parainfluenza virus, influenza virus and respiratory syncytial virus

Kim¹,

Kim

Lee

et al. 2016

Medicine

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Viral lower respiratory tract infections (LRTIs) can present with a variety of computed tomography (CT) findings. However, identifying the contribution of a particular virus to CT findings is challenging due to concomitant infections and the limited data on the CT findings in viral LRTIs. We therefore investigate the CT findings in different pure viral LRTIs.All patients who underwent bronchoalveolar lavage (BAL) and were diagnosed with LRTIs caused by parainfluenza virus (PIV), influenza virus, or respiratory syncytial virus (RSV) between 1998 and 2014 were enrolled in a tertiary hospital in Seoul, South Korea. A pure viral LRTI was defined as a positive viral culture from BAL without any positive evidence from respiratory or blood cultures, or from polymerase chain reaction (PCR), or from serologic tests for bacteria, fungi, mycobacteria, or other viruses.CT images of 40 patients with viral LRTIs were analyzed: 14 with PIV, 14 with influenza virus, and 12 with RSV. Patch consolidation (≥1 cm or more than 1 segmental level) was found only in PIV (29%) (P = 0.03), by which CT findings caused by PIV could resemble those seen in bacterial LRTIs. Ground-glass opacities were seen in all cases of influenza virus and were more frequent than in PIV (71%) and RSV (67%) (P = 0.05). Bronchial wall thickening was more common in influenza virus (71%) and RSV (67%) LRTIs than PIV LRTIs (21%) (P = 0.02). With respect to anatomical distribution, PIV infections generally affected the lower lobes (69%), while influenza virus mostly caused diffuse changes throughout the lungs (57%), and RSV frequently formed localized patterns in the upper and mid lobes (44%).The CT findings in LRTIs of PIV, influenza virus, and RSV can be distinguished by certain characteristics. These differences could be useful for early differentiation of these viral LRTIs, and empirical use of appropriate antiviral agents.

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“…Even with advances in diagnosis and treatment, about 450 million people are still affected every year in the world. In Latin America, up to 1.5 million children under the age of five are infected, leading to the death of approximately 4 million annually [8][9][10]. Brazil is one of the countries with the highest number of cases [8].…”

Section: Introduction mentioning

confidence: 99%

Antimicrobial Resistance of Microorganisms Causing Pneumonia in Patients of a Public Hospital in Brazilian Pre-Amazon Region

Assunção¹,

Pereira²,

Nogueira³

et al. 2019

JPP

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Nosocomial infections have been common in health services in Brazil. Among them, pneumonia is very highlighted due to the comorbidity that usually affects intensive treatment unit (ITU) patients, and due to the need for endotracheal intubation. The aim of this study was to determine the resistance profile of bacteria isolated from ITU patients with pneumonia in a public hospital in Sã o Luis, an important city in the Brazilian pre-Amazon region. Bacteria strains were obtained from tracheal aspiration and collected for diagnosis as well for phenotypic characterization. Standards culture media, such as blood and MacConkey agar, were used to isolate clinical strains. Automatized Vitek 2 method was used to identify strains and disc diffusion method (Kirby-Bauer) was performed to determine the antimicrobial susceptibility profile. During study, eighty-eight patients were diagnosed with pneumonia, caused by more than 20 different bacteria. Among them, P. aeruginosa (28%), Acinetobacter baumannii (20%), Coagulase-negative Staphylococci (19%), Staphylococcus aureus (8%) and Klebsiella pneumoniae (7%) were the most prevalent microorganisms. Regarding to the resistance, antimicrobial susceptibility test showed that majority of Gram-negative bacteria presented resistance to ampicillin. In Gram-positive bacteria there was a high resistance to ampicillin, penicillin, ciprofloxacin, clindamycin and erythromycin. This study showed a high prevalence of bacteria resistance in ITU patients in a public hospital. Although P. aeruginosa was the most frequent pathogen, it was possible to find other pathogens that were not recurrent, such as Enterobacter spp., Proteus mirabilis and Providencia stuartii. Regarding antimicrobials, the results showed a high resistance to several antimicrobials.

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Atualização em pneumonia comunitária viral

Cited by 6 publications

References 41 publications

The aetiology of community associated pneumonia in children in Nanjing, China and aetiological patterns associated with age and season

The aetiology of community associated pneumonia in children in Nanjing, China and aetiological patterns associated with age and season

CT findings in viral lower respiratory tract infections caused by parainfluenza virus, influenza virus and respiratory syncytial virus

Antimicrobial Resistance of Microorganisms Causing Pneumonia in Patients of a Public Hospital in Brazilian Pre-Amazon Region

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