Articles: pandemics.
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Frontiers in immunology · Jan 2020
ReviewViral Evasion of the Complement System and Its Importance for Vaccines and Therapeutics.
The complement system is a key component of innate immunity which readily responds to invading microorganisms. Activation of the complement system typically occurs via three main pathways and can induce various antimicrobial effects, including: neutralization of pathogens, regulation of inflammatory responses, promotion of chemotaxis, and enhancement of the adaptive immune response. These can be vital host responses to protect against acute, chronic, and recurrent viral infections. ⋯ A better understanding of this virus-host interplay and its contribution to pathogenesis has previously led to: the identification of genetic factors which influence viral infection and disease outcome, the development of novel antivirals, and the production of safer, more effective vaccines. This review will discuss the antiviral effects of the complement system against numerous viruses, the mechanisms employed by these viruses to then evade or manipulate this system, and how these interactions have informed vaccine/therapeutic development. Where relevant, conflicting findings and current research gaps are highlighted to aid future developments in virology and immunology, with potential applications to the current COVID-19 pandemic.
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Front Public Health · Jan 2020
Hazard Prevention, Death and Dignity During COVID-19 Pandemic in Italy.
On 9 March 2020, Italy passed the Prime Minister's Decree n. 648, establishing urgent measures to contain the transmission of COVID-19 and prevent biological hazards, including very restrictive interventions on public Holy Masses and funerals. Italy banned burial procedures based (i) on the recent acknowledgment about the virus environmental stability as well as (ii) its national civil contingency plan. Hence, only the cremation process is admitted for COVID-19 deaths. ⋯ The dignity of the dead, their cultural and religious traditions, and their families should be always respected and protected. Among all the threats, COVID-19 epidemic in Italy revealed the fragility of human beings under enforced isolation and, for the first time, the painful deprivation of families to accompany their loved ones to the last farewell. Ethics poses new challenges in times of epidemics.
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Health is a state of complete physical, mental and social well-being. The outbreak of coronavirus disease 2019 (COVID-19) in the area of Wuhan, China, has evolved rapidly into a public health crisis and has spread exponentially to other parts of the world. There is strong evidence that this novel coronavirus is similar to coronavirus species found in bats and potentially pangolins, confirming the zoonotic nature of this new cross-species virus-mediated disease. ⋯ They proceed in accordance with the current guidelines of the government of each country as well as with the valid standards and preventive, diagnostic and therapeutic procedures for COVID-19. This article mainly focuses on the recommended methods in dental medicine designed to protect patients and healthcare professionals (Tab. 2, Ref. 29). Keywords: coronavirus, COVID-19, dental strategies, dental treatment recommendations.
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The current coronavirus pandemic is an unprecedented public health challenge that is having a devastating economic impact on households. Using a sample of 230,540 respondents to an online survey from 17 countries in Latin America and the Caribbean, the study shows that the economic impacts are large and unequal: 45 percent of respondents report that a household member has lost their job and, among households owning small businesses, 59 percent of respondents report that a household member has closed their business. ⋯ Declines in food security and health are among the disproportionate impacts. The findings provide evidence that the current public health crisis will exacerbate economic inequality and provides some of the first estimates of the impact of the pandemic on the labor market and well-being in developing countries.
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Rev. Soc. Bras. Med. Trop. · Jan 2020
Is it time to talk about the end of social distancing? A joinpoint analysis of COVID-19 time series in Brazilian capitals.
Monitoring coronavirus disease (COVID-19)-related infections and deaths in Brazil is controversial, with increasing pressure to ease social distance measures. However, no evidence of a sustained, widespread fall in cases exists. ⋯ Caution is warranted when considering the relaxation of restrictions.