Anna Callaghan
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View article: Discovering global-scale processes in the marine atmosphere
Discovering global-scale processes in the marine atmosphere Open
Measurements in the remote unpolluted atmosphere have tremendous power to reveal processes that are happening on a global scale.   In the marine atmosphere where nitrogen oxide (NOx) levels are very low,  the photochemical l…
View article: Significant missing OH reactivity in the tropical marine boundary layer
Significant missing OH reactivity in the tropical marine boundary layer Open
It has recently been highlighted that observed OH reactivity (kOH) in the remote marine boundary layer cannot be fully explained by the measured or modelled speciated VOCs [1]. Understanding the identity and magnitude of the species that c…
View article: Measurements and experimental budget analysis of OH, HO2 and RO2 radicals in a remote tropical marine location
Measurements and experimental budget analysis of OH, HO2 and RO2 radicals in a remote tropical marine location Open
The OH radical is the dominant daytime tropospheric oxidising agent, reacting with almost all Volatile Organic Compounds (VOCs). The majority of global methane is removed in the tropical troposphere by OH. The oxidation of VOCs by OH forms…
View article: Screening for SARS-CoV-2 Infection Within a Psychiatric Hospital and Considerations for Limiting Transmission Within Residential Psychiatric Facilities — Wyoming, 2020
Screening for SARS-CoV-2 Infection Within a Psychiatric Hospital and Considerations for Limiting Transmission Within Residential Psychiatric Facilities — Wyoming, 2020 Open
In the United States, approximately 180,000 patients receive mental health services each day at approximately 4,000 inpatient and residential psychiatric facilities (1). SARS-CoV-2, the virus that causes coronavirus disease 2019 (COVID-19)…
View article: Lessons Learned and Legacy of the Stop Transmission of Polio Program
Lessons Learned and Legacy of the Stop Transmission of Polio Program Open
In 1988, the by the World Health Assembly established the Global Polio Eradication Initiative, which consisted of a partnership among the World Health Organization (WHO), Rotary International, the Centers for Disease Control and Prevention…
View article: Early Detection of Epidemic GII-4 Norovirus Strains in UK and Malawi: Role of Surveillance of Sporadic Acute Gastroenteritis in Anticipating Global Epidemics
Early Detection of Epidemic GII-4 Norovirus Strains in UK and Malawi: Role of Surveillance of Sporadic Acute Gastroenteritis in Anticipating Global Epidemics Open
Noroviruses are endemic in the human population, and are recognised as a leading cause of acute gastroenteritis worldwide. Although they are a highly diverse group of viruses, genogroup-II genotype-4 (GII-4) noroviruses are the most freque…