By a staff reporter : Loss of smell may not be the main symptom of a Covid patient, if he or she is infected by the Delta Varrient of SARS-CoV-2 as the new variant, which is on its way to becoming predominant across the world, is believed to have brought in some changes in the symptoms, a study conducted by Australia's Griffith University has revealed. As published in The Conversation, Lara Herrero, research leader in virology and infectious diseases of the university, has said the data they have worked with were mostly from the United Kingdom and collected through a self-reporting system. Lara also mentioned that the study did not take into account which participant is infected with which variant but as the Delta variant is at present the predominant one in the UK, it's a "safe bet the symptoms we see here reflect the Delta variant," she wrote.