The state of Florida has reported a rise in new COVID-19 cases on Tuesday after Governor Ron DeSantis signed an executive order, easing restrictions on restaurants and bars.

With this executive order, restaurants and bars are allowed to operate at full capacity.

New cases surged to 3,266 from the 738 reported on Monday, according to Florida's health department. That is the highest one-day number since Sept. 19.

DeSantis lifted restrictions on bars and restaurants on Friday. Scenes of crowded bars and restaurants contributed to the situation over the weekend.

Florida's cases had been falling. The state was also seen with at least 10 percent reduction in new cases in the week ending Monday. That is compared to the last seven days.

Arizona, Geogia, Maryland, Rhode Island, Texas, and Virginia are among the states with a decline in new cases in the past week. 

In total, the state of Florida has reported 704,568 cases. More than one million people have died worldwide from COVID-19. The U.S. accounts for more than 20 percent of the death toll.

The U.S. has been hit hard by the virus with almost 7.12 million reported infections and over 205,000 deaths. With recent rise in U.S. COVID-19 cases, health experts warn that things could get worse soon.

Around 20 states are holding steady when it comes to the average of daily new cases compared to the last week. About 23 states are reporting increases.

These states are: Alabama, Alaska, Colorado, Idaho, Indiana, Massachusetts, Michigan, Minnesota, Montana, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, North Dakota, Oregon, South Carolina, South Dakota, Utah, Vermont, Washington, Wisconsin, and Wyoming.

Fall and winter seasons are seen to drive more people indoors and bring about flu season. Experts say Americans need to be consistent in following guidelines, which include mask wearing, practicing social distancing, and avoiding large crowds.

Experts say this will be the key along woth authorities increasing testing capacity as infections start to rise again.

The U.S. is at the top when it comes to the total number of reported deaths. Latest John Hopkins' data showed that the U.S., Brazil, India, and Mexico are responsible for more than 50 percent of coronavirus deaths.

Meanwhile, biotechnology company Moderna and the National Institutes of Health expanded an early-phase trial of their vaccine candidate and found that the vaccine safely brought about an immune response in older adults.

"The immune response to many other vaccines has been shown to decrease with increasing age. Thus, the testing of SARS-CoV-2 vaccine candidates in older populations is of paramount importance, since these persons account for the majority of serious COVID-19 cases and associated deaths," the NIH-led researchers said.

The phase one clinical trial expansion included 40 participants who were 56 and older. They were given two doses of either 25 micrograms or 100 micrograms of vaccine, which are 28 days apart.

The immune reaction was stronger in the group that got the larger dosage. Adverse side effects were mostly mild or moderate, as stated by the researchers.

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