Description:
Background. Epidemiological studies suggest that, following infection with influenza virus, there is a short period during which a host experiences a lower susceptibility to infection with other influenza viruses. This viral interference appears to be independent of any antigenic similarities between the viruses. We used the ferret model of human influenza to systematically investigate viral interference. Methods. Ferrets were first infected then challenged 1-14 days later with pairs of influenza A(H1N1)pdm09, influenza A(H3N2), and influenza B viruses circulating in 2009 and 2010. Results. Viral interference was observed when the interval between initiation of primary infection and subsequent challenge was <1 week. This effect was virus specific and occurred between antigenically related and unrelated viruses. Coinfections occurred when 1 or 3 days separated infections. Ongoing shedding from the primary virus infection was associated with viral interference after the secondary challenge. Conclusions. The interval between infections and the sequential combination of viruses were important determinants of viral interference. The influenza viruses in this study appear to have an ordered hierarchy according to their ability to block or delay infection, which may contribute to the dominance of different viruses often seen in an influenza season.
Description:
Background. Epidemiological studies suggest that, following infection with influenza virus, there is a short period during which a host experiences a lower susceptibility to infection with other influenza viruses. This viral interference appears to be independent of any antigenic similarities between the viruses. We used the ferret model of human influenza to systematically investigate viral interference. Methods. Ferrets were first infected then challenged 1-14 days later with pairs of influenza A(H1N1)pdm09, influenza A(H3N2), and influenza B viruses circulating in 2009 and 2010. Results. Viral interference was observed when the interval between initiation of primary infection and subsequent challenge was <1 week. This effect was virus specific and occurred between antigenically related and unrelated viruses. Coinfections occurred when 1 or 3 days separated infections. Ongoing shedding from the primary virus infection was associated with viral interference after the secondary challenge. Conclusions. The interval between infections and the sequential combination of viruses were important determinants of viral interference. The influenza viruses in this study appear to have an ordered hierarchy according to their ability to block or delay infection, which may contribute to the dominance of different viruses often seen in an influenza season.
Description:
For approximately 200 years, cholera has been feared globally as a disease that can cause rapid-onset epidemics. The causative organisms, Vibrio cholerae O1 and O139 serogroups, are endemic to Southern Asia, but appear to spread globally in waves resulting in seven recognised pandemics to date. The current seventh pandemic has seen the introduction of V. cholerae O1 El Tor into the Oceania region. Since 1962 there have been five large outbreaks at a frequency of approximately one per decade. There have also been regular small outbreaks and clusters of disease throughout the region during the seventh pandemic. The most recent outbreak of cholera in the region occurred in Papua New Guinea in 2009–2011, and this was the largest outbreak to occur in the region to date. In Oceania the majority of people live in high-income settings (Australia and New Zealand) so the risk of cholera transmission is low. Despite this, an estimated 6.5 million people living in the region are at risk of cholera. The most important risk factors are inadequate access to safe water and lack of appropriate sanitation and hygiene measures. However, many other factors may contribute to cholera transmission risk, and people living in Pacific Island countries may be at increased risk in the future due to climate change. Strengthening health delivery services in the region will ensure countries are better equipped to handle future cholera outbreaks; and further understanding the epidemiology of cholera and the causative agent in the region could help prevent future transmission.
Description:
The COVID-19 pandemic, which affects all areas of life, has also affected children in need of education and care. It is of great importance to develop policies that take into account the best interests of children in this process. In this review article, the policies developed for early childhood education and care during the pandemic period in five countries (Australia, Croatia, Hungary, Spain, and Turkey), how they are implemented, the problems that arose, and the solutions produced are discussed. As a result, the COVID-19 pandemic has revealed that we need to focus on eliminating the educational inequalities, set policies for the welfare of children on foundations that are more realistic, rebuild teacher training, and improve the welfare of families. Priorizating the best interests of the child in the policies to be developed and building the social ecology on justice will ease overcoming the crises that will be faced.
Description:
The COVID-19 pandemic, which affects all areas of life, has also affected children in need of education and care. It is of great importance to develop policies that take into account the best interests of children in this process. In this review article, the policies developed for early childhood education and care during the pandemic period in five countries (Australia, Croatia, Hungary, Spain, and Turkey), how they are implemented, the problems that arose, and the solutions produced are discussed. As a result, the COVID-19 pandemic has revealed that we need to focus on eliminating the educational inequalities, set policies for the welfare of children on foundations that are more realistic, rebuild teacher training, and improve the welfare of families. Priorizating the best interests of the child in the policies to be developed and building the social ecology on justice will ease overcoming the crises that will be faced.
Investigating the relationship between human activity and the urban heat island effect in Melbourne and four other international cities impacted by COVID-19
Description:
This article speaks to an Aboriginal academic’s experience during COVID-19 teaching cultural content via the Internet and an online platform. It highlights the challenges of teaching deeply spiritual content online in a unit where being able to develop relationships and trust before these units are offered would be beneficial.
Description:
Australian universities are understood to have the highest number of international students per capita worldwide. The sector contributes over $40 billion to the national economy and sustains many thousands of jobs. Despite their importance to the Australian economy and society, international students are often overlooked in mainstream health promotion and support services. Of the many difficulties and hardships international students experience, mental health presents a significant problem. Evidence indicates that the mental health of international students was declining before the COVID-19 pandemic took hold in Australia. The impact of the pandemic appears to have exacerbated this issue. Our findings from an online survey (n=135) and semi-structured interviews (n=20) reinforce the importance of international students maintaining close social connections for optimizing their mental health. They also bring clarity to the challenges students from highly socially engaged (collectivistic) cultures face, when studying in individualistic environments like Australia amid the COVID-19 pandemic.
Description:
This study investigated the impact of Coronavirus Disease of 2019 (COVID-19) restrictions on perceived health and wellbeing of young Australian sport and physical activity participants. A survey was conducted during the first COVID-19 restrictions and lockdowns in Australia (May–June 2020). Health measures were tabulated against five respondent characteristics, including settings and modes of sport and physical activity, and comparisons made with chi-square tests. Findings indicate that male youth were significantly more likely to report better physical (p =.001), general (p =.014), and mental (p
Description:
This study investigated the impact of Coronavirus Disease of 2019 (COVID-19) restrictions on perceived health and wellbeing of young Australian sport and physical activity participants. A survey was conducted during the first COVID-19 restrictions and lockdowns in Australia (May–June 2020). Health measures were tabulated against five respondent characteristics, including settings and modes of sport and physical activity, and comparisons made with chi-square tests. Findings indicate that male youth were significantly more likely to report better physical (p =.001), general (p =.014), and mental (p
Description:
On 24 January 1919, a thirty-two-year-old nurse from Sydney, Jean Williamson, disembarked at the railway station at Oodnadatta in the far north of South Australia to commence her new role as sister in charge of the Australian Inland Mission (AIM) hostel. On 18 April that year, Williamson greeted thirty-four-year-old minister from Melbourne, Coledge Harland, who had arrived by train to take up a three-year post as padre for the AIM’s central Australian parish. Just over a month later, an influenza pandemic that had already killed untold numbers of people worldwide reached the isolated township. Drawing on primary documents, including an extensive collection of previously unseen photographs, letter and diaries from Harland and Williamson, this thesis examines the management and care of pandemic influenza at Oodnadatta from May to late July 1919. Intercultural aspects of the management and care of European, Afghan, Chinese and Aboriginal patients are examined in the context of the health and lifestyle of local residents, nursing practices, medicines, foods, accommodation and the contribution of individuals, groups and their roles. This intimate microhistory sheds light on a relatively unknown, yet important group of people in Australia’s frontier history: the missioners and others who cared for seriously ill Aboriginal and non-Aboriginal patients at Oodnadatta, provided culturally sensitive care that afforded respect, dignity and compassion to all. At the time, the gravity of the world wide situation and the sheer need to provide care saw individual efforts go unnoticed; however, in hindsight, it is possible to see and appreciate the significance of what they achieved under the most difficult of circumstances.
Description:
On 24 January 1919, a thirty-two-year-old nurse from Sydney, Jean Williamson, disembarked at the railway station at Oodnadatta in the far north of South Australia to commence her new role as sister in charge of the Australian Inland Mission (AIM) hostel. On 18 April that year, Williamson greeted thirty-four-year-old minister from Melbourne, Coledge Harland, who had arrived by train to take up a three-year post as padre for the AIM’s central Australian parish. Just over a month later, an influenza pandemic that had already killed untold numbers of people worldwide reached the isolated township. Drawing on primary documents, including an extensive collection of previously unseen photographs, letter and diaries from Harland and Williamson, this thesis examines the management and care of pandemic influenza at Oodnadatta from May to late July 1919. Intercultural aspects of the management and care of European, Afghan, Chinese and Aboriginal patients are examined in the context of the health and lifestyle of local residents, nursing practices, medicines, foods, accommodation and the contribution of individuals, groups and their roles. This intimate microhistory sheds light on a relatively unknown, yet important group of people in Australia’s frontier history: the missioners and others who cared for seriously ill Aboriginal and non-Aboriginal patients at Oodnadatta, provided culturally sensitive care that afforded respect, dignity and compassion to all. At the time, the gravity of the world wide situation and the sheer need to provide care saw individual efforts go unnoticed; however, in hindsight, it is possible to see and appreciate the significance of what they achieved under the most difficult of circumstances.