scholarly journals The upper respiratory tract microbiome of Australian Aboriginal and Torres Strait Islander children in ear and nose health and disease.

2021 ◽  
Author(s):  
Andrea Coleman ◽  
Julian Zaugg ◽  
Amanda Wood ◽  
Kyra Cottrell ◽  
Eva Grahn Hakansson ◽  
...  
Keyword(s):  
Respiratory Tract ◽  
Relative Abundance ◽  
Healthy Children ◽  
Upper Respiratory Tract ◽  
Indigenous Australian ◽  
Novel Bacterium ◽  
History Of ◽  
Health And Disease ◽  
Upper Respiratory ◽  
Nasal Microbiota

Objective: To examine the nasal microbiota in relation to otitis status and nose health in Indigenous Australian children. Methods: Children aged 2-7 years were recruited from two northern Australian (Queensland) communities. Clinical histories were obtained through parent interview and review of the medical record. Nasal cavity swabs were obtained, and the child's ears, nose and throat were examined. DNA was extracted and analysed by 16S rRNA amplicon next generation sequencing of the V3/V4 region in combination with previously generated culture data. Results: 103 children were recruited (mean 4.7 years), 17 (16.8%) were 'healthy', i.e. normal examination and no history of otitis media (OM). Nasal microbiota differed significantly in relation to otitis status and nose health. Children with historical OM had higher relative abundance of Moraxella compared to healthy children, despite both having healthy ears at the time of swabbing. Children with healthy noses had higher relative abundance of S. aureus compared to those with rhinorrhoea. Dolosigranulum was correlated to Corynebacterium in healthy children. Haemophilus and Streptococcus correlated across phenotypes. Ornithobacterium was absent/low relative abundance in healthy children and clustered around otopathogens. It correlated with Helcococcus and Dichelobacter. Conclusions: Dolosigranulum and Corynebacterium form a synergism that promotes URT/ear health in Indigenous Australian children. Ornithobacterium likely represents Candidatus Ornithobacterium hominis and in this population is correlated with a novel bacterium which appears to be related to poor upper respiratory tract/ear health.

Upper Respiratory Microbiota in Relation to Ear and Nose Health Among Australian Aboriginal and Torres Strait Islander Children

2021 ◽  
Author(s):  
Andrea Coleman ◽  
Seweryn Bialasiewicz ◽  
Robyn L Marsh ◽  
Eva Grahn Håkansson ◽  
Kyra Cottrell ◽  
...  
Keyword(s):  
Healthy Children ◽  
Upper Respiratory Tract ◽  
Indigenous Australian ◽  
Ionization Time ◽  
Australian Aboriginal ◽  
Flight Mass Spectrometry ◽  
Upper Respiratory ◽  
Corynebacterium Pseudodiphtheriticum ◽  
Nasal Microbiota ◽  
Respiratory Microbiota

Abstract Background We explored the nasal microbiota in Indigenous Australian children in relation to ear and nasal health. Methods In total, 103 Indigenous Australian children aged 2–7 years (mean 4.7 years) were recruited from 2 Queensland communities. Children’s ears, nose, and throats were examined and upper respiratory tract (URT) swabs collected. Clinical histories were obtained from parents/medical records. URT microbiota were characterized using culturomics with Matrix assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) identification. Real-time PCR was used to quantify otopathogen (Haemophilus influenzae, Streptococcus pneumoniae, and Moraxella catarrhalis) loads and detect respiratory viruses. Data were analyzed using beta diversity measures, regression modeling, and a correlation network analysis. Results Children with historical/current otitis media (OM) or URT infection (URTI) had higher nasal otopathogen detection and loads and rhinovirus detection compared with healthy children (all P < .04). Children with purulent rhinorrhea had higher nasal otopathogen detection and loads and rhinovirus detection (P < .04) compared with healthy children. High otopathogen loads were correlated in children with historical/current OM or URTI, whereas Corynebacterium pseudodiphtheriticum and Dolosigranulum pigrum were correlated in healthy children. Conclusions Corynebacterium pseudodiphtheriticum and D. pigrum are associated with URT and ear health. The importance of the main otopathogens in URT disease/OM was confirmed, and their role relates to co-colonization and high otopathogens loads.

scholarly journals Elimination and irrigation therapy to optimize the state of the nasal microbiome in children

2021 ◽  
pp. 50-58
Author(s):  
Olga E. Chelpachenko ◽  
Elena I. Danilova ◽  
Irina N. Chainikova
Keyword(s):  
Young Children ◽  
Respiratory Tract ◽  
Nasal Cavity ◽  
Nasal Mucosa ◽  
Inflammatory Diseases ◽  
The State ◽  
Healthy Children ◽  
Upper Respiratory Tract ◽  
Upper Respiratory ◽  
Nasal Microbiota

The article summarizes the results of the work of domestic and foreign researchers on the study of homeostasis of the nasal cavity, including the state of the microbiota of the nasal mucosa in healthy children and in inflammatory diseases of the upper respiratory tract. The normal microbiota of the nasal cavity is represented by corynebacteria (diphtheroids), neisseria, coagulasenegative staphylococci, alpha-hemolytic streptococci. From among the transient species, such species as Staphylococcus aureus, Escherihia coli, beta-hemolytic streptococci would be found in the specified biotope. The main attention is paid to the features of the nasal microbiota in newborns and young children (dependence of the nasal microbiota on the type of feeding, age and season). The role of hypercolonization by opportunistic microflora and its persistent potential (ability to biofilm formation, degradation of lysozyme, interferon) in the pathogenesis of inflammatory diseases of the upper respiratory tract is noted. The pathogenetic mechanisms providing multilevel protection of the organism from pathogens are considered. The expediency of using elimination-irrigation therapy as a hygienic means of sanitizing the nasal cavity in young children has been determined. The questions about the advantages of the use of isotonic solutions, their effectiveness for ensuring normal colonization resistance of the nasal mucosa are discussed. In conclusion, we must say that for hygienic care and sanitation purposes it is recommended only to rinse the nasal mucosa in newborns and infants using drops of isotonic saline solution and an aspirator to avoid aspiration and inflow of liquid into the cavity of Eustachian tube and middle ear, and also for the preventive purposes, as it allows to maintain homeostasis of the nasal mucosa and prevent the development of acute respiratory diseases.

Seroconversion Rates to Combined Measles-Mumps-Rubella-Varicella Vaccine of Children With Upper Respiratory Tract Infection

PEDIATRICS ◽  
1994 ◽  
Vol 94 (4) ◽  
pp. 514-516
Author(s):  
Penelope H. Dennehy ◽  
Georges Peter ◽  
Cheryl L. Saracen
Keyword(s):  
Tract Infection ◽  
Respiratory Tract ◽  
Respiratory Tract Infection ◽  
Seroconversion Rate ◽  
Varicella Vaccine ◽  
Upper Respiratory Tract Infection ◽  
Healthy Children ◽  
Upper Respiratory Tract ◽  
Upper Respiratory ◽  
Antibody Levels

Objective. To determine if upper respiratory tract infection (URI) affects the seroconversion rate or quantitative response to each component of a combined measles-mumps-rubella-varicella vaccine. Subjects and methods. One hundred forty-nine children between 15 and 18 months of age were prospectively divided into two groups according to the presence of URI or recent history of URI symptoms within the 4 weeks before vaccination. Once stratified, 74 children in the healthy group and 75 children in the URI group were randomly assigned to receive one of three lots of measles-mumps-rubella varicella vaccine by subcutaneous injection into the deltoid area. Serum was obtained from each child just before vaccination and 4 to 6 weeks later for measuring antibody levels against each virus. Results. Prevaccination antibody levels against each virus in the URI and healthy groups did not differ. Nine children had pre-existing antibodies to varicella and six to mumps; no child had positive serologies for measles or rubella before vaccination. Children with pre-existing antibody were excluded from analysis of seroconversion for that virus. Seroconversion to measles, mumps, and rubella occurred in 100% of children in both groups. Mean antibody levels did not differ between the healthy and URI groups for measles (111 vs 122), mumps (97 vs 108), or rubella (96 vs 102). Three (4%) of 70 children with URIs in whom varicella serologies were available failed to seroconvert to varicella vaccine although none of the 69 healthy children had vaccine failure (P = .24). The mean varicella antibody level was 11.3 ± 1.4 in the healthy children, which did not differ significantly from the level of 9.5 ± 0.9 in the URI group. Conclusions. Seroconversion to measles, mumps, rubella, and varicella was not significantly affected by the presence of a concurrent or recent URI in 15-to 18-month-old children.

scholarly journals A role of oropharyngeal microbiota in developing acute and chronic diseases of the upper respiratory tract

2020 ◽  
Vol 10 (2) ◽  
pp. 359-367
Author(s):  
I. I. Ababii ◽  
L. A. Danilov ◽  
M. K. Maniuc ◽  
P. I. Ababii ◽  
S. S. Ghinda ◽  
...  
Keyword(s):  
Respiratory Tract ◽  
Respiratory Tract Infections ◽  
Chronic Tonsillitis ◽  
Upper Respiratory Tract Infections ◽  
Control Group ◽  
Healthy Children ◽  
Upper Respiratory Tract ◽  
Upper Respiratory ◽  
Tract Infections

Currently, a rise in incidence of polyethological inflammation of the upper respiratory tract mucosa paralleled by altered resident and transient microbiota displaying in many cases increased antibiotic resistance has been noted. Opportunistic microbes play a major role in developing inflammatory process in Pirogov–Waldeyer’s ring. An inflammatory process occurring in the tonsillar lymphatic tissue results in host systemic complications. Fighting against acute and chronic infections of the upper respiratory tract holds the main task in pediatric otorhinolaryngology, as they can consequently elicit the cardiovascular, genitourinary and musculoskeletal complications. The results of studies examining this issue remain very contradictory, which accounted for a need to conduct our study on the territory of Moldova featured with mixed climatic conditions. Here, we wanted to study a role of microbial factor in etiopathogenesis of chronic tonsillitis in children. Bacteriological microbiota data for superficial palatine tonsils were obtained form 608 children subdivided into 5 groups: group I — 333 children with compensated chronic tonsillitis; group II — 87 children with decompensated chronic tonsillitis; group III — 91 children with acute upper respiratory tract infections (comparison group); group IV — 48 children with acute upper respiratory tract infections treated with antibiotic therapy; group V — 49 apparently healthy children (control group). It was found that β-hemolytic streptococcus exerting high sensitivity to virtually all antibiotics groups was detected in 17.4% of children with acute tonsilar inflammatory processes and decompensated defense in the lymphatic pharyngeal ring compared to 3.5% in control group. Streptococcus pneumoniae was isolated in all study groups ranging within 4.8–21.7%, including 14% in apparently healthy children characterized by reduced antibiotics sensitivity. The data obtained suggest that sickly children with acute and chronic upper respiratory tract infections constitute a risk group for developing somatic diseases. The high incidence of Streptococcus pneumoniae indicates a need for performing immunoprophylaxis, use of therapeutic vaccination as a up-to-date, combined approach in treatment of such pediatric cohort.

Sinus Barotrauma in Divers

1976 ◽  
Vol 85 (1) ◽  
pp. 61-64 ◽  
Author(s):  
Paul Fagan ◽  
Bart McKenzie ◽  
Carl Edmonds
Keyword(s):  
Respiratory Tract ◽  
Occupational Disease ◽  
Upper Respiratory Tract ◽  
Fluid Level ◽  
X Ray ◽  
Sinus Barotrauma ◽  
History Of ◽  
Upper Respiratory ◽  
Mucosal Thickening ◽  
Maxillary Sinuses

Sinus barotrauma is a common occupational disease of divers, with the incidence of descent barotrauma approximately double that of ascent. Pain chronologically associated with the change of pressure is the most dominant symptom and is seen in 92% of the cases presented for treatment. The majority complain of a frontal distribution of pain, with ethmoidal and maxillary being much less significant. Epistaxis is the second commonest symptom, and may be the sole symptom in some ascent cases. A history of recent or past sinus barotrauma or upper respiratory tract pathology is very common. Clinical examination supports the evidence of upper respiratory tract pathology in many cases. The radiological signs of abnormality were present in over three quarters of the cases examined. Of these the maxillary sinus was affected in most cases, the frontal in approximately one quarter and the ethmoidal in less than a fifth. The pathology was more commonly that of mucosal thickening, but in 12% of cases there was a fluid level. It is noted that although symptoms were predominantly frontal, x-ray changes were most often present in the maxillary sinuses.

scholarly journals Guillian Barre syndrome epidemiology presentation and outcome

2021 ◽  
Vol 23 (11) ◽  
pp. 263-272
Author(s):  
Dr.Raed jabbar Hussain ◽  
◽  
Dr. Rahan Assim Mohammed Al-Qazzaz ◽  
Kahtan Adnan Abdullah ◽  
◽  
...  
Keyword(s):  
Tract Infection ◽  
Respiratory Tract ◽  
Respiratory Tract Infection ◽  
Cranial Nerves ◽  
Upper Respiratory Tract Infection ◽  
Upper Respiratory Tract ◽  
Mechanical Ventilators ◽  
Study Results ◽  
History Of ◽  
Upper Respiratory

Background Guillain Barre syndrome (GBS) is most common cause of acute flaccid paralysis, affect peripheral nerves with distinctive features clinical, pathological and prognosis. Patient and methods this study is prospective of 60 patients admitted at al-kadymia teaching hospital from first January 2004 to end April 2009. Age includes 1 to ≤11 years. Diagnosis was by clinical examination and confirmed by CSF tests and nerve conduction velocity study. Results It was found that 32 patients were male and 28 were female. Cranial nerves involved in 30% of patients. Sensory symptoms found in 16%. CSF changes was seen in 85.5% patients. Antecedent events were found in 27 patients out of 60, 14 had history of upper respiratory tract infection 45%, 7 had gastroenteritis 11%, 6 patients had history of fever 3 weeks earlier 10% and 15 patients had complicated by respiratory failure managed by mechanical ventilators, During this study 4 patients had been died. Conclusions: Current study conclude about 45% of patients had history antecedent events in as upper respiratory tract infection , gastroenteritis and fever, so cerebrospinal fluid CSF cell in the majority of cases within normal range and mostly lymphocytes, Cranial nerves were affected in most patients without serious sequels so Steroid was not given to most of patients in our study without any significant effect on the course of disease , Hospitalization was range from 2 week to 4 week, Recovery was range from 4 to 12 week and Death rate was 6% .

Natural History of Primary Autoimmune Neutropenia in Infancy

PEDIATRICS ◽  
1987 ◽  
Vol 79 (5) ◽  
pp. 728-733
Author(s):  
Lars T. Conway ◽  
Mary E. Clay ◽  
William E. Kline ◽  
Norma K. C. Ramsay ◽  
William Krivit ◽  
...  
Keyword(s):  
Natural History ◽  
Tract Infection ◽  
Respiratory Tract ◽  
Antibiotic Therapy ◽  
Upper Respiratory Tract ◽  
Autoimmune Neutropenia ◽  
Laboratory Findings ◽  
History Of ◽  
Upper Respiratory

Five patients with primary autoimmune neutropenia were evaluated during their first 2 years of life. Their illness resolved spontaneously after 6 to 41 months (median 13 months), and the patients were subsequently followed for 13 to 73 months (median 28 months). None required immunosuppressive therapy to induce remission, and routine antibiotic therapy adequately controlled all infectious episodes. An increased rate of infection, particularly otitis media and upper respiratory tract infection, occurred during the neutropenic period. No other noninfectious illnesses, particularly no other autoimmune diseases, were reported in any of these patients at any time. In each case, resolution of neutropenia paralleled the disappearance of neutrophil autoantibodies which were specific for the NA1 antigen. This report describes the clinical and laboratory findings and the long-term history of primary autoimmune neutropenia in these five patients.

Sign in / Sign up

Export Citation Format

Share Document