The ship's itinerary hasn't changed following the tests.
More than two dozen said they were concerned about decision-making at the agency.
The app was launched in England and Wales on Thursday to warn people if they have been in contact with someone who has tested positive for the coronavirus.
This year has been marked by a pandemic, a tense election season, and unrest in response to police violence.
The White House coronavirus task force member and leading immunologist said the public must follow certain measures to prevent a rise in cases.
The Mega Millions lottery is drawn every Tuesday and Friday.
Dr. Francis Collins said a "cloud of uncertainty" has been cast over public confidence in a vaccine.
Health experts told Newsweek that the country's scientific accomplishments in the COVID-19 pandemic have been drowned out by politicisation and a response botched from the start.
The man fell unconscious at a fast food restaurant before being rushed to hospital in Massachusetts.
The team said scientists should explore whether a dengue vaccine could protect against the coronavirus.
Professor Yariv Gerber of Israel's Tel Aviv University said the findings will ease patients' worries about returning to their usual level of sexual activity soon after a heart attack.
However this does not mean people should stop following guidelines to prevent the virus from spreading, researchers said.
At a campaign event on Monday, Joe Biden struck a different tone to the president, stating the number of dead cannot become "background noise."
Researchers analyzed more than 120 speeches to explore the relationship between gender and rhetoric amid the COVID-19 pandemic.
The disease control agency updated its website amid a debate among scientists on how the coronavirus spreads.
The country where the virus is thought to have emerged rarely reports daily case counts in the hundreds since the spring. But at what cost?
The survey for Newsweek also looked at people's mask-wearing habits in other locations, including at the grocery store.
Norway's state epidemiologist questioned the idea put forward by his Swedish counterpart Anders Tegnell.
People taking the drug were found to have a reduced risk of hospitalization, the company said.
World Health Organization expert Dr. Mike Ryan said the chances of catching the coronavirus are high.
Over 16,000 pairs of twins took part in the study.
Scientists studied outbreaks of forms of E-coli which have caused eight deaths in the U.S. and Canada between 2009 to 2018.
"Catastrophic and life-threatening" flooding was likely along portions of the north-central Gulf Coast, the National Hurricane Center said.
"I wonder if I could bottle that and take it with me when I go around talking to other parts of the country," Fauci said. "This should be the model for the country."
Leading experts in evolutionary biology and infectious disease told Newsweek that the research paper is weak; it offers no new information and makes numerous unsubstantiated claims.
Atlas' appointment is viewed by some as an attempt to counter the opinions of Coronavirus Task Force members such as Dr. Anthony Fauci.
Scientists showed over a dozen people grey blobs while they were in a scanner.
Experts told Newsweek cases will likely soon climb, and that the country is in for a rocky few months .
Tegnell also said "of course something went wrong" with Sweden's approach, as over 5,800 people died of COVID-19.
Researchers used GPS and polling data to explore the relationship between who residents likely voted for and their behaviour in hurricane season.