The delta variant of COVID-19 is reportedly more infectious than other forms of coronavirus because it contains thousands more virus particles, according to Live Science.
People with this variant can test positive for COVID-19 earlier than those diagnosed with other forms of the virus, the report said.
While the variant represents most of current COVID-19 cases worldwide, companies such as Pfizer have been creating a newer version of their vaccine that is supposed to counter it.
With the variant reportedly 60% more transferable, more than 1,200 people have been infected with it every day since Monday.
Even those who have already been vaccinated against the virus have been infected with the variant. Israeli research published at the beginning of the month reported that the COVID-19 vaccine is only 64% effective against the Delta variant.
Sonovia, an Israeli mask company, says its masks can protect the wearer from getting infected with Delta.
Maayan Jaffe-Hoffman, Rossella Tercatin and Reuters contributed to this report.