![]() However, sometimes the virus can change in ways that make it easier for the virus to spread, or to make people sicker, or both. When this happens, the World Health Organisation uses the name "variants of concern". Variants of SARS-CoV-2 are identified by looking at the genetic code of the virus ("genome sequencing") and comparing the sequence of genetic material to that of other SARS-CoV-2 viruses. #Item opened on your behalf eyebeam 1.5 enhanced code# In NSW many swabs, including those from people in quarantine have their genome sequenced. This allows us to detect new variants of the virus and helps to confirm where the particular strain has come from. The Delta variant of concern was first identified in October 2020. It causes more infections and spreads faster than early forms of the SARS-CoV-2 virus. ![]() The Delta variant is easily transmitted to household members of positive cases and has also been associated with infections in workplace and high-density housing settings such as apartments.ĭata suggests that the Delta variant causes more severe illness and increased number of hospitalisations than previous strains of COVID-19 in unvaccinated persons.įully vaccinated people can still spread the virus to others. ![]() However, vaccinated people appear to be infectious for a shorter period, and have a much lower chance of developing severe illness. ![]()
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