Texas confirms first coronavirus patient, bringing total cases in U.S. to 15

A second person evacuated from Wuhan, China, to a U.S. Marine base near San Diego has been diagnosed with the new coronavirus, raising the tally of confirmed cases in the United States to 14, the Centers for Disease Control and Prevention (CDC) reported on Wednesday.

All 50 states received testing kits from the CDC but a problem with the kits was discovered by multiple state labs, delaying the use of the kits, which enable testing samples away from the CDC's Atlanta headquarters. But the failure of the kits means that states still have to depend on the C.D.C., which will mean several days' delay in getting results. Each kit can test about 700 to 800 specimens from patients, the agency said. The labeling mix-up was not related to a faulty test kit.

CDC's director of the Center for the National Center for Immunization and Respiratory Diseases, Dr Nancy Messonnier issued a calm but stark warning.

During trial runs in some states, the kits produced results that were "inconclusive", said Dr. Messonnier.

"Things may not always go as smoothly as we may like", noted Dr Messonnier.

All those under quarantine are being closely monitored to contain the spread of the virus, the CDC said. NCIRD, which she heads, is part of CDC.

Though all cases identified in the United States have been linked to Wuhan travelers or their close contacts, preparation continue with the assumption that could gain a foothold in the United States, and changes in community transmission in the United States or other countries could drive changes in recommendations.

Covid-19 continues its relentless spread throughout China.

Wednesday, the CDC did announce some good news.

The CDC's update came along with an update from China, as reported by Reuters. The vast majority of infections have been in mainland China.

Japan confirmed its first coronavirus death, adding to two previous fatalities in Hong Kong and the Philippines.

The laboratory service provider said it had immediately engaged with the CDC on its test being available to commercial labs and is preparing to support the global response, if necessary. The first patient arrived at the base on February 5.