What are the odds COVID-19 patients with no symptoms could develop them later on?
Quite slim, according to a recent study led by a group of researchers in Aichi Prefecture, who have discovered that asymptomatic coronavirus patients tend to recover within nine days of having their infections confirmed via polymerase chain reaction (PCR) tests.
Background – A cruise ship is a closed-off environment that simulates the basic functioning of a city in terms of living conditions and interpersonal interactions. Thus, the Diamond Princess cruise ship, which was quarantined because of an onboard outbreak of COVID-19 in February, 2020, provides an opportunity to define the shedding pattern of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and patient antibody responses before and after the onset of symptoms.
Les environnements fermés, comme les bateaux de croisière, favorisent la propagation du SARS-CoV-2, mais ils constituent aussi un cadre idéal pour étudier le nouveau coronavirus.
The Cruise ship “Diamond princess” arrived at the port of Yokohama on February 3rd, and is currently undergoing quarantine measures. Since the morning on February 5th, all passengers have been required to stay put in the respective guest rooms in order to minimize the spread of the virus, and the infection prevention measures have been taken ever since.
Le 18, les Centers for Disease Control and Prevention (CDC), qui sont considérés comme les leaders mondiaux en matière de recherche et de lutte contre les maladies infectieuses, ont publié une déclaration aux médias soulignant que la quarantaine qui a eu lieu sur le navire de croisière Diamond Princess, où de nombreuses personnes ont été infectées par le nouveau coronavirus, “n’a peut-être pas suffi à prévenir l’infection chez les individus. Le 19, 国立感染症研究所 (Institut national des maladies infectieuses) a publié les résultats de son analyse, indiquant que la plupart des infections parmi les passagers ont commencé à se propager avant le 5 février, le début de quarantaine, et ont continué même après le confinement.
A cruise ship, named the Diamond Princess, had travel that originated in Yokohama on 20 January and included stops in Japan (Kagoshima), Hong Kong, Vietnam, Taiwan and Japan (Okinawa), before arriving back in Yokohama on 3 February. During this time, a passenger who disembarked on 25 January in Hong Kong, has presented with cough since 19 23 Jan and was confirmed positive for Novel coronavirus on 1 February. The Japanese government requested that the Diamond Princess stay at port, with no passengers or crew disembarking, in Yokohama when it arrived on 3 February.
