Friday, January 31, 2020

Japan MOH Announces Two More Asymptomatic Coronavirus Cases



#14,776


Yesterday, in Japan MOH: 9th Case & Detection Of 2 Asymptomatic PCR-Positive Caseswe saw Japan's first asymptomatic 2019-nCoV cases among the plane load of Japanese nationals who were evacuated from the epicenter of China's epidemic (see Japan MOH: Status Of 206 Evacuees From Wuhan - 5 Hospitalized).
Today, Japan's MOH reports two more asymptomatic returnees have tested positive for the virus.  This comes amid increasing concerns over the potential for asymptomatic cases to transmit the virus to others (see NEJM Transmission of 2019-nCoV Infection from an Asymptomatic Contact in Germany).

This (translated) update from the MOH.

Press officials
Development of asymptomatic pathogen holders associated with the new coronavirus

With asymptomatic pathogen holders, there are no symptoms, but PCR tests were positive.
Yesterday (January 30), of the 210 Japanese who returned to Japan on a charter flight from Wuhan City, 13 people who were transported to medical institutions were tested for the new coronavirus at the National Institute of Infectious Diseases at 20:45 yesterday. All 13 people were reported to be negative.
In addition, around 10:00 today (January 31), the National Institute of Infectious Diseases reported the results of the remaining 197 people. Among them, there were reports of

These people were Japanese who returned to Japan yesterday on a charter flight from Wuhan City, and a new coronavirus was detected as a result of PCR tests conducted at the National Center for International Medical Research. We will ensure that we conduct proactive epidemiological surveys on this matter, including the understanding of the person scrutiny of the person in contact with the high-level contact.
Overview
Third case of asymptomatic pathogen holder
(1) Age: 30s
2 Gender: Male
3 Residential areas: Under investigation
4 symptoms, course:
Returned to Japan around 8:57 on January 30. There are no symptoms, and it is positive in the test just in case.
5 Behavioral history:
According to his report, he does not stop by the seafood market in Wuhan City at South China's Seafood Castle.
In China, clear contact with pneumonia patients has not been confirmed.
4th case of asymptomatic pathogen holder
(1) Age: 50s
2 Gender: Male
3 Residential areas: Under investigation
4 symptoms, course:
Returned to Japan around 8:57 on January 30. There are no symptoms, and it is positive in the test just in case.
5 Behavioral history:
According to his report, he does not stop by the seafood market in Wuhan City at South China's Seafood Castle.
In China, clear contact with pneumonia patients has not been confirmed.