Publications by authors named "Carl D Morrow"

Article Synopsis
  • * A systematic review and meta-analysis of surveys from low- and middle-income countries revealed that contact rates do not decline with age as they do in high-income settings, and large, intergenerational households are common in lower-income areas.
  • * The findings indicate that differences in how people interact in various income settings could impact the spread of diseases and the success of control strategies.
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Article Synopsis
  • - This study analyzes how contact patterns for spreading respiratory pathogens, like SARS-CoV-2, vary between low/middle-income and high-income countries, using data from 28,503 participants and over 413,000 contacts.
  • - Unlike high-income settings where contact rates decrease with age, low-income settings show similar contact levels across ages, notably featuring larger, multi-generational households that engage more often in home-based contacts.
  • - These differing contact patterns have significant implications for understanding how respiratory viruses spread and the effectiveness of public health interventions, particularly the differences in social behavior across income levels.
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Background: Tuberculosis remains a major public health problem in poverty-stricken areas of the world. Communal gathering places account for the majority of TB transmission in high burden settings.

Objective: To investigate the social behaviour patterns of individuals who have developed TB disease and adolescents at risk of infection.

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South Africa has one of the worst tuberculosis burdens in the world. Several ecological forces have contributed to this, including high HIV prevalence; failing TB control strategies; crowded, poorly ventilated indoor environments-including the complex web of political and economic interests which produce them; the development of racial capitalism; and mining and migration. In the following study, we measure CO2 levels in public transport to investigate the role extended commutes from peri-urban settlements to urban sites of work-a direct result of forced removals-potentially play in propagating the TB epidemic in Cape Town, South Africa.

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Background: Despite an improvement in the overall TB cure rate from 40-74% between 1995 and 2011, TB incidence in South Africa continues to increase. The epidemic is notably disquieting in schools because the vulnerable population is compelled to be present. Older learners (age 15-19) are at particular risk given a smear-positive rate of 427 per 100,000 per year and the significant amount of time they spend indoors.

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