Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"Waning Immunity"”.
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A discrete-time waning immunity model for the spread of an immune escape pathogen
This thesis explores the formulation of waning immunity models for the spread of an immune escape (antigenically evolving) pathogen, such as the Omicron lineage of SARS-CoV-2, and investigates the possibility of such models in generating sustained or relatively large amplitudes of damped …
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Pertussis: Advances in Vaccine Development and Disease Control Strategies
… current acellular vaccines in inducing long-term immunity and addresses challenges such as waning immunity, pathogen evolution, and variability in vaccination coverage. By integrating insights into virulence mechanisms and emerging vaccine technologies, this work contributes to a better …
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An Epidemic Model Structured By The Time Since Last Infection
… when studying the problem of reinfections and waning immunity, where the literature is more scarce. Lower respiratory infections (including pneumonia and influenza) and tuberculosis are two examples of diseases where reinfections are common. Their study is of critical importance since, …
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The Role of ORF59 and PAN ENE in Viral Replication of KSHV
… of factors including environmental stimuli or waning immunity. Particularly, in immune-compromised individuals, reactivation can result in the production of new infectious virions which can in turn drive the progression of KSHV-associated malignancies. During reactivation, multiple viral and …
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SARS-CoV-2 Variants and Vaccines
… to prevent death. Due to a lack of previous immunity, SARS-CoV-2 spread around the globe at a rapid rate requiring the declaration of a pandemic and for countries to enforce national responses, such as widespread lockdowns and preventative measures including mask wearing and social …
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COVID-VACCINES IN PREGNANCY: MATERNAL AND NEONATAL RESPONSE OVER THE FIRST 9 MONTHS AFTER DELIVERY
… antibody transfer, and the subsequent immunity conferred to newborns. The study aims to address gaps in understanding the duration and effectiveness of maternal-derived neonatal immunity while assessing the roles of breastfeeding, maternal booster doses, and postnatal infections in …
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Long-term follow-up of neonates who have been immunized with hepatitis B vaccine
… age and anti-HBc was not significant (P=0.15), waning immunity is not suggested by the findings of this study. This was in spite of the decline in anti-HBs titres with increasing age. The conclusions of this study are: 1) That a booster dose of hepatitis B vaccine after the six month dose is not …