According to Our World in Data (Owid), a scientific online publication produced by a research team at the University of Oxford in England, a rising positive rate "can suggest the virus is actually spreading faster than the growth seen in confirmed cases".
Fiji's Health Secretary Dr James Fong said the remaining cases are contacts of known cases, "cases that were seen in screening clinics and were swabbed, and cases under investigation to determine possible sources of transmission".
He said there have been 3521 cases during the outbreak that started in April 2021.
"We have recorded a total of 3591 cases in Fiji since the first case was reported in March 2020, with 753 recoveries."
There were two deaths reported when the pandemic began in March 2020 in Fiji, but the delta variant continues to spread fast in the country.
Eight Covid-positive patients have died in the country's main hospital - the Colonial War Memorial Hospital - from pre-existing non-Covid related illnesses.
"The seven-day average of new cases per day has increased to 234 cases or 264 cases per million population per day," Fong said.
"Our daily testing numbers have remained at a high level, and yet our test positivity continues to increase.
"All the evidence is that there is widespread community transmission in the Lami-Suva-Nausori containment zone.
"This means the outbreak is not confined to specific areas and everyone should take the necessary precautions and prevent themselves and their loved ones from getting infected."
Fiji health authorities continue to warn the public to "stay home as much as possible" and are urging them to wear a mask as well as "to download and activate the Covid-19 contact tracing app if they must leave the house".
Fiji now has 2838 positive people in isolation.
