Association between nasopharyngeal load of Streptococcus pneumoniae, viral coinfection, and radiologically confirmed pneumonia in Vietnamese children

HTT Vu, LM Yoshida, M Suzuki… - The Pediatric …, 2011 - journals.lww.com
… Therefore, we could not determine the change of nasopharyngeal bacterial load with viral
coinfection in the development of childhood pneumonia. Additional prospective studies of viral

Nasopharyngeal carriage of Streptococcus pneumoniae among Brazilian children: Interplay with viral co-infection

K Pizzutti, J Comerlato, DV Oliveira, A Robaina… - PloS one, 2025 - journals.plos.org
between respiratory viruses and pneumococcal carriages … pneumococcal and viral pathogens.
This study aimed to examine the relationship between respiratory viruses, pneumococcal

High nasopharyngeal pneumococcal density, increased by viral coinfection, is associated with invasive pneumococcal pneumonia

N Wolter, S Tempia, C Cohen, SA Madhi… - The Journal of …, 2014 - academic.oup.com
nasopharyngeal-oropharyngeal specimens (24%) were tested for respiratory viruses and
Streptococcus pneumoniae by … pneumococcal loads, compared with children with other lower …

Increased nasopharyngeal bacterial titers and local inflammation facilitate transmission of Streptococcus pneumoniae

KR Short, PC Reading, N Wang, DA Diavatopoulos… - MBio, 2012 - Am Soc Microbiol
… for pneumococcal transmission and showed that coinfection … bacterial load may play an
important role in pneumococcal … the pneumococcal load independently of a viral infection and …

Streptococcus pneumoniae colonization of the nasopharynx is associated with increased severity during respiratory syncytial virus infection in young children

JC Brealey, KJ Chappell, S Galbraith, E Fantino… - …, 2018 - Wiley Online Library
… were virus positive and generally bacterial loads decreased … pneumococcal virulence in
animal models, with co-infection … of the upper airways by Streptococcus species, such as S. …

Co-colonization by Streptococcus pneumoniae and Staphylococcus aureus in the throat during acute respiratory illnesses

V De Lastours, R Malosh, K Ramadugu… - Epidemiology & …, 2016 - cambridge.org
… interaction between Sp and Sa carriage in the nasopharynx. … between Sp and Sa may not
be sustained during viral infection, … coinfection, is associated with invasive pneumococcal

Correlation of viral load of respiratory pathogens and co-infections with disease severity in children hospitalized for lower respiratory tract infection

A Franz, O Adams, R Willems, L Bonzel… - Journal of clinical …, 2010 - Elsevier
… bacterial cultures on nasopharyngeal aspirates (NPA). … a co-infection between these two
groups of viruses. Interestingly no … influenzae (NTHi) and Streptococcus pneumoniae adhering …

Increased Nasopharyngeal Density and Concurrent Carriage of Streptococcus pneumoniae, Haemophilus influenzae, and Moraxella catarrhalis Are Associated …

S Chochua, V D'Acremont, C Hanke, D Alfa, J Shak… - PloS one, 2016 - journals.plos.org
… bacterial load. … association between pneumococcal serotypes and individual species (ie,
Mc, Hi, Sa, or Nm) could not be explored. Another important limitation relates to the fact that viral

Relationships between rhinitis symptoms, respiratory viral infections and nasopharyngeal colonization with Streptococcus pneumoniae, Haemophilus influenzae and …

F Rodrigues, D Foster, E Nicoli, C Trotter… - The Pediatric …, 2013 - journals.lww.com
association between viral infection (and viral load, picornavirus infection and picornaviral
load… ) and between viral infection and viral load and Sp colonization density (P = 0.024, 0.028). …

Interactions between respiratory syncytial virus and Streptococcus pneumoniae in the pathogenesis of childhood respiratory infections: a systematic review

SB Besteman, D Bogaert, L Bont, A Mejias… - The Lancet …, 2024 - thelancet.com
… macrophages results in diminished viral load of RSV, possibly … during RSV and pneumococcal
co-infection. Intriguingly, in … By contrast, nasopharyngeal abundance of Streptococcus, …