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Immunising Aboriginal Mothers With Pneumococcal Polysaccharide Vaccine To Prevent Infant Ear Disease And Carriage
Funder
National Health and Medical Research Council
Funding Amount
$1,131,530.00
Summary
Aboriginal children experience the highest rates of acute and chronic ear infections in the world, with resultant permanent ear damage, hearing loss and educational disadvantage. These infections are mainly bacterial, and Streptococcus pneumoniae (pneumococcus) is the predominant pathogen. Pneumococcal colonisation and infection begins within days of birth, many months before any potential immunological protection from infant pneumococcal conjugate vaccine may be expected. New strategies are nee ....Aboriginal children experience the highest rates of acute and chronic ear infections in the world, with resultant permanent ear damage, hearing loss and educational disadvantage. These infections are mainly bacterial, and Streptococcus pneumoniae (pneumococcus) is the predominant pathogen. Pneumococcal colonisation and infection begins within days of birth, many months before any potential immunological protection from infant pneumococcal conjugate vaccine may be expected. New strategies are needed to eliminate, or at least delay, this early-onset pneumococcal colonisation. One such strategy is the administration to the mother of pneumococcal vaccine, which may protect the newborn infant by leading to higher titres of transplacental or breast milk pneumococcal antibodies and-or by reducing carriage (and transmission to the infant) of maternal pneumococci. Previous small studies using this strategy have been encouraging, but there have been no studies properly evaluating carriage or disease endpoints in infants. The polysaccharide pneumococcal vaccine is currently recommended for all Aboriginal and Torres Islander persons aged 15 years or more in the Northern Territory but uptake of the vaccine has been poor. We propose to conduct a pilot study to determine if maternal immunisation with this vaccine, either in the third trimester of pregancy of immediately following delivery, can reduce pneumococcal carriage and the prevalence of middle ear disease among Aboriginal infants at seven months of age. We aim to recruit 210 Aboriginal women who have uncomplicated pregnancies from Darwin and remote communities in the Top End of the Northern Territory. Each subject and their infant offspring will be followed-up after vaccination and at birth, one , two and seven months after birth.Read moreRead less
PneuMum: An RCT Of Maternal Pneumococcal Vaccination For Protection Of Indigenous Children From Ear Disease
Funder
National Health and Medical Research Council
Funding Amount
$591,291.00
Summary
Ear disease starts in the first few months of life for most Indigenous children. By school entry, 2 out of every 3 Indigenous children in the NT have hearing problems. This proposal is to renew funding of the PneuMum study, which aims to find out whether the protection that a mother gets when she receives a pneumococcal vaccine late in pregnancy or soon after delivery can help to protect her child from getting ear disease.
Family Study Of Ear Health And Metabolic Diseases In A Western Australian Aboriginal Community
Funder
National Health and Medical Research Council
Funding Amount
$1,054,741.00
Summary
A family-based study of diseases in a Western Australian Aboriginal community is planned. Patterns in DNA within families will be related to patterns of disease in two areas of health that are of major concern to this Aboriginal community, ear health in children (e.g. runny ears; perforated eardrums) and type 2 diabetes. Finding genetic determinants of disease provides information that can complement clinical, epidemiological and public health understanding of disease.
Do Respiratory Viruses Explain High Rates Of Acute Otitis Media With Perforation In Young Aboriginal Children
Funder
National Health and Medical Research Council
Funding Amount
$207,159.00
Summary
Aboriginal children living in remote communities have very high rates of acute otitis media with perforation. Antibiotics can prevent about half these episodes but long courses are needed. No studies have assessed the potential contribution of respiratory viruses to this burden. This study will use samples (already stored in freezers) from children with perforation and children without perforation to screen for respiratory viruses. Direct clinical and research implications are anticipated.
Judicious Use Of Antibiotics For Acute Otitis Media In Aboriginal Children: A Multi-centre Clinical Trial
Funder
National Health and Medical Research Council
Funding Amount
$614,840.00
Summary
Aboriginal children living in remote communities have the highest rates of severe ear infections and associated hearing loss currently reported in the medical literature. In some rural and remote Aboriginal communities, all infants have their first infection by 3 months of age and up to 60% develop chronic suppurative otitis media (pus draining from the ears) in the first year of life. By the time they reach school-age more than 50% of children have a significant hearing loss. This has important ....Aboriginal children living in remote communities have the highest rates of severe ear infections and associated hearing loss currently reported in the medical literature. In some rural and remote Aboriginal communities, all infants have their first infection by 3 months of age and up to 60% develop chronic suppurative otitis media (pus draining from the ears) in the first year of life. By the time they reach school-age more than 50% of children have a significant hearing loss. This has important implications for their education. The aim of this study is to determine whether a new longer-acting antibiotic will be more effective in treating young Aboriginal children with new ear infections and therefore prevent the progression to chronic suppurative otitis media. The involvement of up to 20 Aboriginal communities in this well-designed clinical trial represents a major advance in the methods used to evaluate interventions in Aboriginal health. The project will also provide training in ear examination and appropriate medical management. Swabs from the nose will be taken to monitor the effect of antibiotics on the rates of antibiotic resistance. The results from this study will be directly relevant to evidence-based guidelines on the management of otitis media in Aboriginal and Torres Strait Islander populations.Read moreRead less
Implications Of Bacterial Load For Vaccine Efficacy And Antibiotic Treatment Outcomes In High-risk Populations
Funder
National Health and Medical Research Council
Funding Amount
$345,000.00
Summary
Otitis media (middle ear disease) is a common childhood infection, and a major concern in remote Aboriginal communities of the Northern Territory. For these children, otitis media commences within the first few weeks of life and progresses to perforation of the ear drum in 60% of children by 12 months of age. Few children in remote Aboriginal communities have normal ear status or normal hearing and many have conductive hearing loss, affecting language development and education. Otitis media in t ....Otitis media (middle ear disease) is a common childhood infection, and a major concern in remote Aboriginal communities of the Northern Territory. For these children, otitis media commences within the first few weeks of life and progresses to perforation of the ear drum in 60% of children by 12 months of age. Few children in remote Aboriginal communities have normal ear status or normal hearing and many have conductive hearing loss, affecting language development and education. Otitis media in these children results from infection with the bacteria Streptococcus pneumoniae, Haemophilus influenzae and-or Moraxella catarrhalis. Therefore the types of interventions we are using to combat the high prevalence of ear disease are antibiotic therapy, Streptococcus pneumoniae vaccination, and hygiene interventions. However we fear that the high load of bacteria carried by these children compromises the treatment and prevention strategies. The current proposal will test this hypothesis, and if found to be true, there will be implications for the management of otitis media. For example, dose, frequency and choice of antibiotic treatment, and vaccine schedule changes including an early dose or a booster dose.Read moreRead less