Coronavirus-infected people are showing symptoms after about five days, according to a public health study, according to which a 14-day quarantine period is “reasonable,”.
An accurate assessment of the incubation period for the new virus makes it easier for experts to predict the dynamics of the epidemic and find a balance between draconian control measures and the elimination of the spread. At the time of writing this article, the disease had infected 182,199 people and killed 7,139 people.
Italy and many European countries banned all non-essential movements across the country and ordered the closure of schools, gyms, and museums.
An analysis of COVID-19 infections by researchers at the Johns Hopkins Bloomberg School of Public Health revealed an approximate median incubation period was estimated to be 5.1 days (95% CI, 4.5 to 5.8 days), – longer than typical colds.
The study found that less than 2.5 percent of those infected showed symptoms within 2,2 days, and 97.5% of those who develop symptoms will do so within 11.5 days (CI, 8.2 to 15.6 days) of infection. Public health experts use a 14-day quarantine period based on estimates, and data from Johns Hopkins shows that this is exactly the case with COVID-19.
These estimates imply that, under conservative assumptions, 101 out of every 10 000 cases (99th percentile, 482) will develop symptoms after 14 days of active monitoring or quarantine. “Based on our analysis of publicly available data, this recommendation of 14 days for active monitoring or quarantine is reasonable, although some cases will be missed over the long term,” says senior study author Justin Lester, associate professor at the Bloomberg School epidemiology.
The study, published in the journal Annals of Internal Medicine, examined 181 confirmed cases with identifiable exposure and symptom onset windows to estimate the incubation period of COVID-19.
What to do if you think you have symptoms of COVID-19?
If you think you have COVID-19 symptoms, stay home and call your doctor.
- what kind of symptoms do you have
- how serious your symptoms are
- whether you have traveled abroad or had contact with someone who has
- have you been around large groups of people
You may need to be evaluated if:
- the symptoms are severe
- you are an older adult
- you have underlying health conditions
- you were exposed to someone with COVID-19
- Your doctor will determine if you need testing and what type of treatment is best.
If your symptoms are mild and you do not have a medical condition, your doctor may tell you to just stay home, rest, stay hydrated, and avoid contact with other people.
If symptoms worsen after a few days of rest, urgent medical care is important.