WASHINGTON -- Eight more sailors aboard the USS Theodore Roosevelt have tested positive again for the coronavirus.
That raises to 13 the number who appear to have become infected a second time while serving aboard the aircraft carrier now sidelined in Guam.
All the sailors had previously tested positive for the virus and had gone through at least two weeks of isolation.
Before they were allowed to return to the ship, all had to test negative twice in a row, with the tests separated by a day or more.
That some were testing positive again has puzzled officials and raised questions about the accuracy of test results.
Most patients with COVID-19 have mild to moderate symptoms. However, in a small proportion of patients, COVID-19 can lead to more severe illness, including death, particularly among those who are older or those who have chronic medical conditions.
COVID-19 spreads primarily through respiratory droplets produced when an infected person coughs or sneezes.
Symptoms include fever, cough, and difficulty breathing. Symptoms appear within 14 days of being exposed to an infectious person.
Virginia health officials urged the following precautions:
- Wash your hands often with soap and water for at least 20 seconds.
- Use an alcohol-based hand sanitizer only if soap and water are not available.
- Avoid touching your eyes, nose, and mouth.Cover your mouth and nose with a tissue or your sleeve (not your hands) when coughing or sneezing.
- Clean and disinfect frequently touched objects and surfaces.Stay home when you are sick.
- Avoid contact with sick people.Avoid non-essential travel.