<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Carlos A. da Silva</style></author><author><style face="normal" font="default" size="100%">Polo-Ma-Abiele H. Mfengwana</style></author><author><style face="normal" font="default" size="100%">Felicity J. Burt</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The In-Vitro Antiviral Activity of Carissa Edulis, Tulbaghia Acutiloba, and Tetradenia Riparia on Severe Acute Respiratory Syndrome Coronavirus-2</style></title><secondary-title><style face="normal" font="default" size="100%">Pharmacognosy Journal</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Antiviral activity</style></keyword><keyword><style  face="normal" font="default" size="100%">Carissa edulis</style></keyword><keyword><style  face="normal" font="default" size="100%">Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2)</style></keyword><keyword><style  face="normal" font="default" size="100%">Tetradenia riparia</style></keyword><keyword><style  face="normal" font="default" size="100%">Tulbaghia acutiloba</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2025</style></year><pub-dates><date><style  face="normal" font="default" size="100%">January 2025</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">17</style></volume><pages><style face="normal" font="default" size="100%">47-57</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p class=&quot;rtejustify&quot;&gt;The current treatment landscape for COVID-19 is largely supportive or experimental in nature, highlighting the need for alternative approaches. Ethanolic extracts of three South African medicinal plants (&lt;em&gt;Carissa edulis, Tulbaghia acutiloba,&lt;/em&gt; and &lt;em&gt;Tetradenia riparia&lt;/em&gt;) were tested for their antiviral activity against SARSCoV- 2. Viral loads were quantified using real-time PCR, and their anti-inflammatory effects were also assessed using ELISA. Both pre-treatment and post-treatment of H1299-hACE2-E3 cells with C. edulis extract significantly reduced viral loads by two- to four-fold decreases as compared to untreated controls, which suggests potential antiviral activity. &lt;em&gt;T. acutiloba &lt;/em&gt;and &lt;em&gt;T. riparia &lt;/em&gt;also exhibited moderate antiviral suppression, especially when the extracts were pre-treated prior to infection at early time points (24 hours). All three plants showed anti-inflammatory activity. The findings from this research demonstrate &lt;em&gt;C. edulis’&lt;/em&gt; potent antiviral activity and positions it as a promising candidate for further research in antiviral therapy development.&lt;/p&gt;
</style></abstract><issue><style face="normal" font="default" size="100%">1</style></issue><work-type><style face="normal" font="default" size="100%">Original Article</style></work-type><section><style face="normal" font="default" size="100%">47</style></section><auth-address><style face="normal" font="default" size="100%">&lt;p class=&quot;rtejustify&quot;&gt;&lt;strong&gt;Carlos A. da Silva&lt;sup&gt;1*&lt;/sup&gt;, Polo-Ma-Abiele H. Mfengwana&lt;sup&gt;1&lt;/sup&gt;, Felicity J. Burt&lt;sup&gt;2&lt;/sup&gt;&lt;/strong&gt;&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;&lt;sup&gt;1&lt;/sup&gt;Biomedical Technology Unit, Department of Health Sciences, Faculty of Health and Environmental Sciences, Central University of Technology, Free State, Bloemfontein, SOUTH AFRICA.&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;&lt;sup&gt;2&lt;/sup&gt;Department of Virology, Faculty of Health Sciences, University of the Free State, Bloemfontein, SOUTH AFRICA.&lt;/p&gt;
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