<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2183-3575</journal-id>
<journal-title><![CDATA[Comunicação e Sociedade]]></journal-title>
<abbrev-journal-title><![CDATA[Comunicação e Sociedade]]></abbrev-journal-title>
<issn>2183-3575</issn>
<publisher>
<publisher-name><![CDATA[Centro de Estudos de Comunicação e Sociedade - Universidade do Minho]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2183-35752021000200149</article-id>
<article-id pub-id-type="doi">10.17231/comsoc.40(2021).3174</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Critical Review: A Review of the Studies About the Usage of Social Media During the Covid-19 Pandemic]]></article-title>
<article-title xml:lang="pt"><![CDATA[Revisão Crítica: Uma Abordagem aos Estudos Sobre o Uso dos Media Sociais Durante a Pandemia Covid-19]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cheng]]></surname>
<given-names><![CDATA[Cheng]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Espanha]]></surname>
<given-names><![CDATA[Rita]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Universitário de Lisboa Centro de Investigação e Estudos de Sociologia ]]></institution>
<addr-line><![CDATA[Lisbon ]]></addr-line>
<country>Portugal</country>
</aff>
<pub-date pub-type="pub">
<day>30</day>
<month>12</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>30</day>
<month>12</month>
<year>2021</year>
</pub-date>
<volume>40</volume>
<fpage>149</fpage>
<lpage>167</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S2183-35752021000200149&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S2183-35752021000200149&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S2183-35752021000200149&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Since the coronavirus disease (covid-19) was declared a public health emergency of international concern by the World Health Organization in January 2020, it has led to the loss of millions of human lives and a global economic recession. Recently, there has been a recognized need for effective health communication via social media to deliver accurate information and promote pertinent behavioral change. Thus, this study provides a systematic review to explore what has been done, what conflicts exist, and what knowledge gap remains in terms of social media use during the covid-19 wave, indicating relevant communication strategies. This research is based on 76 relevant papers taken from searches on the Web of Science and Google Scholar. The analysis revealed that much of the literature confirms the positive effect of social media on information propagation and promotion of precautions in the control of covid-19. The spreading of rumors, especially about government performance, in social media is clearly of increasing concern. Currently, heated debate continues about the association between exposure to social media and public mental health. Another fiercely debated question is whether rumors are shared more widely than fact-checking information. Up to date, far too little attention has been paid to information disparities and vulnerable groups on social media.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo: Desde que a doença coronavírus (covid-19) foi declarada como uma emergência de saúde pública de interesse internacional pela Organização Mundial da Saúde em janeiro de 2020, levou à perda de milhões de vidas humanas e à recessão económica global. Cada vez mais, é reconhecida a necessidade de uma comunicação em saúde eficaz através dos media online, que possa fornecer informações credíveis e promover mudanças de comportamento relevantes. Assim, este estudo faz uma revisão sistemática da literatura, para compreender quais os conflitos de posição que existem e que lacunas de conhecimento permanecem em termos de uso dos media sociais durante a primeira vaga de covid-19, bem como indicar estratégias de comunicação relevantes. Esta pesquisa recolheu 76 artigos relevantes através de pesquisas na Web of Science e no Google Scholar. A análise revelou que grande parte da literatura veio confirmar o efeito positivo dos media sociais online na propagação de informações e promoção de precauções durante o controlo do covid-19. A propagação de rumores e a intervenção do governo nos media sociais têm aumentado as preocupações dos utilizadores. Atualmente, o debate continua sobre a associação entre a exposição aos media sociais e a saúde mental pública. Outra questão muito debatida é se os rumores são partilhados de forma mais ampla do que as informações verificadas e credíveis. Até agora, muito pouca atenção tem sido dada, nos media sociais, às disparidades e lacunas de informação e também aos grupos vulneráveis.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[social media use]]></kwd>
<kwd lng="en"><![CDATA[risk health communication]]></kwd>
<kwd lng="en"><![CDATA[covid-19]]></kwd>
<kwd lng="pt"><![CDATA[utilização de media sociais]]></kwd>
<kwd lng="pt"><![CDATA[comunicação de risco em saúde]]></kwd>
<kwd lng="pt"><![CDATA[covid-19]]></kwd>
</kwd-group>
</article-meta>
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