The WHO continuously reviews available data on SARS-CoV-2 variants of concern. For this version, the global epidemiological
situation of the COVID-19 pandemic as of 21 January 2022 – at a time when the Omicron VOC had been identified in 171
countries across all six WHO Regions and was rapidly re...placing Delta worldwide – was considered Omicron has a substantial growth advantage, higher secondary attack rates and a higher observed reproduction number than Delta.
There is now significant evidence that immune evasion contributes to the rapid spread of Omicron. Other factors may be a shorter
serial interval (by about 0.8 to 1.2 days compared to Delta) and potential increased intrinsic transmission fitness . There is
growing evidence that with Omicron, there is lower vaccine effectiveness (VE) against infection and symptomatic disease soon after vaccination compared to Delta. There is also evidence of accelerated waning of VE over time of the primary series against infection and symptomatic disease for the studied vaccines. Further studies are required to better understand the drivers of transmission and declining incidence in various settings. These factors include the intrinsic transmission fitness properties of the virus, degree of immune evasion, vaccination coverage and level of vaccine-derived and post-infection immunity, levels of social mixing and degree of application of public health and social measures (PHSM).
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This country profile presents a summary and analysis of Argentina's status with yellow fever. It is part of a series of profiles on this topic, each focusing on a different country in the Region of the Americas. Argentina's geographical location presents a wide territorial extension throughout diffe...rent latitudes, which determines a wide climatic variety, maintaining the conditions for the enzootic transmission of the yellow fever virus in jungle areas of the northeast of the country bordering Brazil and Paraguay. After controlling the major urban epidemics that hit the port city of Buenos Aires in the 20th century, Argentina maintains foci of enzootic activity in the northeast and isolated human cases for jungle acquisition. The increases in viral activity usually occur in a regional context of epizootics that affect southern Brazil and eastern Paraguay. Argentina has not presented autochthonous cases since 2008. Outbreaks have been sporadic with long intervals without evidence of viral activity.
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: interim guidance, 17 February 2021
This document provides interim guidance on the management of the blood supply in response to the pandemic outbreak of coronavirus disease (COVID-19). It emphasizes the importance of being prepared and responding quickly and outlines key actions and measures that... the blood services should take to mitigate the potential risk to the safety and sufficiency of the blood supplies during the pandemic.
It should be read in conjunction with WHO Guidance for National Blood Services on Protecting the Blood Supply During Infectious Disease Outbreaks, which provides general guidance on the development of national plans to respond to any emerging infectious threats to the sufficiency or safety of the blood supply.
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Asthma is a serious global health problem affecting all age groups. Its prevalence is increasing in many countries, espacially among children. Although some countries have seen a decline in hospitalizations and deaths from asthma, asthma still imposes an unacceptable burden on health care systems, a...nd on society through loss of productivity in the workplace and, espacially for pediatric asthma, disruption to the family.
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DHS Analytical Studies No. 41
Interim Guidance October 2022. This addendum addresses some of the methodological aspects of VE evaluations that have been learned during the past year, as well as those that have become relevant in the current epidemiological setting of the COVID-19 pandemic. For some of the COVID-19 vaccine method...ology issues there are still insufficient data to make a recommendation, in which case different options for approaching VE evaluations are presented.
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Workplaces outside of healthcare facilities can be also settings for transmission of COVID-19. Outbreaks of COVID-19 has been reported in various types of workplaces and job categories.
All workers should be protected from acquiring COVID-19 because of their work. The prevention of COVID-19 in ...work settings should be combined with measures for protecting physical and mental health, safety and wellbeing of workers from other occupational hazards in the operation, closures and reopening of workplaces.
This joint WHO/ILO policy brief provides a summary of the evidence for transmission of COVID-19 in general workplaces and an overview of WHO and ILO recommendations for prevention and mitigation of COVID-19 and for protecting health and safety at work in the context of the pandemic.
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Refugee children and adolescents exhibit resilience despite a history of trauma. However, trauma can affect a refugee
child’s emotional and behavioral development. Mental health providers should consider how the refugee experience (e.g.,
exposure to hunger, thirst, and lack of shelter; injury an...d illness; being a witness, victim, or perpetrator of violence; fleeing
your home and country; separating from family; living in a refugee camp; resettling in a new country; and navigating
between the new culture and the culture of origin) may contribute to a child or adolescent’s emotional or behavioral presentation
in a clinic, school, or community setting.
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Slideset updated regularly to include the latest data and guidance on COVID-19 risk and management in special populations, including children and pregnant women, and persons with comorbidities.
A Joint Statement by the World Health Organization and the United Nations Children’s Fund.
Background Unrest in Chile over inequalities has underscored the need to improve public hospitals. Nursing has been overlooked as a solution to quality and access concerns, and nurse staffing is poor by international standards. Using Chile’s new diagnosis-related groups system and surveys of nurse...s and patients, we provide information to policy makers on feasibility, net costs, and estimated improved outcomes associated with increasing nursing resources in public hospitals.
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The accounting framework for health care financing is a key component of A System of Health Accounts 2011, published by OECD, Eurostat and WHO in October 2011.1 The framework makes health accounts more adaptable to rapidly evolving health financing systems, further enhances crosscountry comparabilit...y of health expenditures and financing data, and ultimately improves the information base for the analytical use of national health accounts (NHAs). It is hoped that SHA 2011 – including its financing framework – will make health accounts a more useful assessment and monitoring tool for health systems and health expenditure in the economy as a whole.
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It is intended for use among clinicians taking care of moderate to severe COVID-19 cases.
The COVID-19 outbreak has brought with it the need for improved critical care for patients who develop severe disease. The majority of COVID-19 patients present with mild to moderate illness, 15% develop sever...e illness and about 5% develop critical conditions needing intensive care unit (ICU) care, requiring noninvasive or invasive ventilation
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Trauma can affect a refugee child on an individual, classroom, school, and family level. However, just because a student is a refugee, it does not mean he or she has experienced trauma and/or will exhibit symptoms related to trauma. Many refugee children adjust very well to new school settings and o...ften quickly pick up language and cultural norms in the school setting.
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Children and youth can face emotional strains after a traumatic event such as a car crash or violence. Disasters also may leave them with long-lasting harmful effects. When children experience a trauma, watch it on TV, or overhear others discussing it, they can feel scared, confused, or anxious. You...ng people react to trauma differently than adults. Some may react right away; others may show signs that they are having a difficult time much later. As such, adults do not always know when a child needs help coping. This tip sheet will help parents, caregivers, and teachers learn some common reactions, respond in a helpful way, and know when to seek support.
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