The latest surge is most likely a result of the Omicron variant of COVID-19, according to Health Commissioner Justa Encarnacion, a strain of the virus that is the most transmissible among all the strains, and also drastically less severe than those that came before it.

Cases in St Thomas surged to 296, followed by St Croix with 240, and St John with 8, according to DoH.

The surge is causing businesses and health facilities to rethink their strategies. The Schneider Regional Medical Center on Friday announced that it would restrict visits to virtual only, citing the rapid growth in cases.

"Based on the rapid increase in Covid-19 cases on St Thomas, Schneider Regional Medical Center will immediately restrict visitation to virtual visits only to protect its vulnerable patients and its staff, who are working tirelessly to provide care," said the hospital via release. "The public is hereby advised that the previous visitation restrictions have been reinstated, and some previously approved in-person visitations are now suspended based on the current environment. There will be limited exceptions to these restrictions."

'Omicron' the likely culprit for surge- Encarnacion

Health Commissioner Justa Encarnacion on Thursday evening called for residents to follow guidelines as they get together with family and friends for the holidays.

"Based on the high numbers that we're seeing, it is highly likely, it is a high probability that our numbers are high because we have Omicron in the territory," Ms Encarnacion told the Consortium Thursday. "And everyone should act as though we do have Omicron and keep themselves safe, because it's proven to be a very contagious virus."

Governor Albert A. Bryan on Tuesday pleaded with Virgin Islanders to follow protocols during the holiday season. "As we get ready to celebrate the Christmas holidays, I want to urge you to be as safe as possible and to be in accordance with the guidelines put forward by the CDC and our local health department," he said.

Situation being monitored- Gov Bryan

Sunday evening, Mr Bryan told the Consortium he was monitoring the situation.

The good news is that the Omicron variant is proving to cause drastically less severe illness than other strains before it, including Delta. The variant's less severe nature has been backed up by three major studies so far, one from South Africa where the strain was first detected in late November, another by Scotland, and a third from the United Kingdom. The South African study, published online by researchers at South Africa’s National Institute for Communicable Diseases, found people infected with Omicron were 70% to 80% less likely to need hospital treatment than people infected with earlier variants, including Delta, according to the Wall Street Journal.

In Scotland, 83.6% of people aged 12 and over have received two doses of vaccine, and 56.6% have received a third shot, WSJ said.

"One of the things that have been consistent is that [Omicron] is mild compared to Delta, so the number of hospitalizations and deaths are low, however, the number of Covid-positive patients are higher," Ms Encarnacion said.

She said the Department of Health has been working with Yale University on detecting the Omicron variant in the territory by sending samples to the institution; however, she said the department would expand its efforts in the coming days to get faster results, as Yale has been inundated with requests.