TUI Cruises confirmed to ABC News that a dozen crew members on a ship off the coast of Greece tested positive for the coronavirus.

The 12 members of the "Mein Schiff 6" crew are asymptomatic and were isolated from other passengers and crew, the company said in a statement. TUI Cruises resumed cruise operations in late July in Germany and started sailing in Greece on Sept 13, according to a spokesperson.

"To rule out any unlikely case of infections, the persons concerned are currently being tested again with our PCR rapid test device on board. The majority of the results already came out to be negative (9 out of 12)," the company said in a statement.

The ship will stick with its original itinerary and sail to Piraeus tomorrow, the company said in a statement.

ABC News’ Christine Theodorou contributed to this report.

At least 120 million rapid diagnostic tests for the coronavirus will be made available, at a maximum cost of $5 per test, to lower- and middle-income countries, the World Health Organization (WHO) announced on Monday.

Manufacturers Abbot and SD Biosenser reached an agreement with the Bill & Melinda Gates Foundation to "make 120 million of these new, highly portable and easy-to-use rapid COVID-19 diagnostic tests available over a period of six months," WHO Director-General Dr. Tedros Adhanom Ghebreyesus said,

The tests were currently priced at a maximum of $5 each but were expected to become cheaper, according to Tedros.

“This will enable the expansion of testing, particularly in hard-to-reach areas that do not have laboratory facilities or enough trained health workers to carry out tests,” Tedros said.

“This is a vital addition to the testing capacity and especially important in areas of high transmission,” he added.

ABC News' Sohel Uddin contributed to this report.

New York state is seeing elevated positive test rates in Brooklyn's Kings County, Orange County and Rockland County, Gov. Andrew Cuomo announced on Monday.

State officials are doing a zip code analysis to track the clusters.

Cuomo referred to Brooklyn as a "major contributor" to the positive test rate increase during his Monday press briefing.

The governor also noted an elevated positive test rate in the state's southern tier that was caused by three separate clusters of cases: a nursing home in Steuben County, a church gathering in Chemung County and a pub in Broome County.

The state announced an additional 834 positive tests on Monday out of 52,936 tests reported -- a positivity rate of 1.5%.

There were also 11 new coronavirus-related deaths reported, Cuomo said.

New York City health officials warned last week of troubling spikes in cases in six neighborhoods across Brooklyn and Queens that were "cause for significant concern."

The neighborhoods include Kew Gardens and Far Rockaway in Queens, Williamsburg in Brooklyn and a separate section of Brooklyn including Midwood, Borough Park and Bensonhurst that health officials are calling the “Ocean Parkway Cluster.”

Russia confirmed 8,135 new cases of COVID-19 over the last 24 hours, the country’s highest single-day increase since mid-July.

An additional 61 coronavirus-related deaths were also recorded in the past day, according to Russia’s coronavirus response headquarters.

Russia’s cumulative total now stands at 1,159,573 confirmed cases and 20,385 deaths.

Almost 27% of the newly confirmed cases -- 2,217 -- were registered in the capital, Moscow.

The daily number of new infections has been on the rise in Russia this month, suggesting the country is entering the second wave of the coronavirus pandemic that is hitting Europe. Unlike other European nations, however, Russia has effectively returned to near-normal life in recent months with few restrictions observed.

Bars, cinemas, nightclubs and restaurants have reopened while social distancing rules exist more or less only on paper. Although face masks are mandatory on public transportation in Moscow and other major cities, few people seem to oblige and police are not enforcing it for now. Still, some shops have been shut down in the capital for failing to observe quarantine rules.

Last week, amid the surge of new cases, Moscow's mayor issued new advice recommending people older than 65 as well as at-risk groups to stay at home. Employers have also been requested to allow as many people as possible to work from home. Meanwhile, Russia's public health watchdog has called on people to congregate less in public places.

Over the weekend, Russia's top medical adviser said the growth in cases was expected as it's primarily the result of colder weather and the start of the traditional flu season.

However, the health system in Saint Petersburg is already showing signs of strain. A long queue of ambulances has appeared outside a COVID-19 hospital in the city, as it did during the height of the country's epidemic in April. Officials said last week that just 6% of the city's hospital beds remain free.

Last month, Russia became the first country in the world to officially register a COVID-19 vaccine and declare it ready for use. The Russian government approved the vaccine before completing its final Phase III trial, eliciting criticism from experts around the globe.

ABC News Alina Lobzina and Patrick Reevell contributed to this report.

The United States is "not in a good place" as some areas report upticks in COVID-19 infections and hospitalizations, according to Dr. Anthony Fauci, the nation's leading infectious diseases expert.

"As we get into the fall and the winter, you really want the level of community spread to be as low as you possibility get it," Fauci, the director of the National Institute of Allergy and Infectious Diseases and a key member of the White House coronavirus task force, told ABC News in an interview Monday on "Good Morning America."

"There's certainly parts of the country that are doing well," he added. "But ... there are states that are starting to show uptick in cases and even some increases in hospitalizations in some states. And, I hope not but, we very well might start seeing increases in deaths."

"You don't want to be in a position like that as the weather starts getting cold," he warned. "So we really need to intensify the public health measures that we talk about all the time."

When asked about Florida's recent decision to reopen bars and restaurants at full capacity and suspend fines for not wearing masks, Fauci called it "very concerning."

"That is something that we really need to be careful about, because when you're dealing with community spread and you have the kind of congregate setting where people get together particularly without masks, you're really asking for trouble," he said. "Now's the time actually to double down a bit."

That doesn't mean another shutdown, he noted.

"We're not talking about shutting anything down. We're talking about common sense type of public health measures that we've been talking about all along," he said. "Obviously, if things really explode you'd have to consider that. But we want to do everything we possibly can to avoid an absolute shutdown."

As the global death toll from the coronavirus pandemic edges closer to 1 million, Fauci warned that the situation is "very serious."

"You got to take it very seriously," he said.