Part of what makes coronavirus so contagious is its sneaky, asymptomatic incubation period. Until recently, the rule of thumb was that most cases became apparent between one and 14 days after exposure, with most cases manifesting themselves with symptoms sometimes around the fourth or fifth day. But one new study published in the journal Science Advances has determined that patients remain asymptomatic for longer than previously thought. As it turns out, patients are most likely to show their first symptoms that arrive on day eight.
The Centers for Disease Control and Prevention (CDC) reported that the first case of an animal testing positive for coronavirus occurred at a zoo in New York City. The CDC is of the opinion that a tiger – which was tested after showing symptoms of a respiratory disease – was infected by a zoo employee, and found that the spread of human-to-animal “may occur in some situations. ” And for more on COVID-19 distribution, check out 13 precautions you need to take every day to prevent Coronavirus.
While just 10 percent of the infected study subjects remained asymptomatic for a full 14 days, the researchers found that the median incubation period was 7.75 days, three to four days later than most previous estimates.
Of course, the incubation period of COVID can make a huge difference in whether we successfully contain the virus. “By giving health authorities a potentially more accurate figure for the incubation period, the results were able to inform guidelines for containment efforts such as quarantines and studies investigating the transmission of the disease,” the researchers shared in a press release.
The new study is probably more accurate than previous studies on the subject of incubation, as it has so far used the largest patient sample in such an analysis. As the researchers noted, “The few existing estimates of four to five days were based on small sample sizes, limited data, and self-reports that could be biased by the patient’s memory or judgment as an interviewer.” This study relied instead on public databases that recorded the dates of infection when they occurred, in an attempt to eliminate bias.
Finally, the researchers came to another striking conclusion: that it is possible that we underestimated the total incubation period of 14 days. The team found that the chance is between five and 10 percent that this is the case – meaning sick individuals could endanger others by ending their quarantines too soon. This is the reason why, if the data of the virus continues to explode, it is prudent on the side of caution: if you think they are exposed, do not wait for symptoms to confirm. When or when they occur does not affect your ability to spread coronavirus. And for more on asymptomatic cases, find out why 80 Percent of people in this age group are asymptomatic.
Gallery: 5 Strange new COVID symptoms reported by doctors (best life)
5 Early new COVID symptoms reported by doctors
These many months in the coronavirus pandemic, chances are good that you know the most common symptoms of COVID to find out. But apart from the dry cough, fever, and fatigue we are recognized as signs that we may have contracted the virus, there are many other symptoms of coronavirus, with more being discovered every day – and they are often not something you could I ever expect in a respiratory illness. To make sure you are aware of the latest findings, here are five early new COVID symptoms that doctors have reported. And for more symptoms you can not miss, learn the 4 Coronavirus symptoms most likely to be fatal.
1. Hiccups
Keep in mind that hiccups are usually completely harmless. In at least one striking case, however, a persistent hiccup from a man turned out to be a surprising COVID symptom. A July study published in the American Journal of Emergency Medicine reported the case of a 62-year-old man who presented with hiccups that lasted four days. X-rays of the chest showed that the hiccup was the result of pneumonia, which turned out to be his only symptom of coronavirus.
“This is the first case report of persistent hiccups as the current complaint in a COVID-19 positive patient in literature on emergency medicine,” the researchers wrote. And for insight into why coronavirus affects certain people more than others, this is why some people do not have COVID symptoms, new study programs.
2. Itching
Like hiccups, itching is not a direct cause of alarm. However, if your itching presents next to a rash on your foot, it may be a symptom of coronavirus. As a vascular nurse Leanne Atkin, PhD, said in a July statement to Huddersfield University, itching in the feet may be a sign of a COVID infection, and it is one that is often overlooked.
But it is not just the itching of COVID toes that deserves a coronavirus test. Rashes in other parts of the body, many of them itchy, are actually a common symptom of the virus, as several studies have shown. And for more signs of coronavirus on your skin, check out these 6 COVID symptoms that are right for you.
3. Hair loss
There are countless causes of hair loss, most of which have nothing to do with coronavirus – although that may be a little comforting to those who experience it. And yes, it seems that hair loss can be a complication of COVID, but it seems to be what people experience months after an active infection with the virus. According to WebMD, “The link between hair loss and COVID has just begun to be reported and recognized in research.”
In this case, it appears that hair loss may be less a direct symptom of coronavirus, and more the result of a traumatic infection. “You may have this big event, and then it may be about three to five months later that you suddenly start noticing the outbursts,” he said. Sara Hogan, MD, a clinical instructor for health sciences at the David Geffen School of Medicine at UCLA, told WebMD. “And we are in the time frame for that regarding the pandemic.”
4. Hearing loss
Doctors now believe that coronavirus can attack your inner ear, and with that comes a variety of possible symptoms, including hearing loss. These findings were revealed in a July research letter published in the journal JAMA Otolaryngology – Head and Neck Surgery after investigators performed autopsies on patients who had died from COVID and discovered the virus in their ears.
Based on this study, co-author C. Matthew Stewart, MD, associate professor of head and neck surgery at Johns Hopkins University School of Medicine, told Newsweek that there may be long-term ear complications from a coronavirus infection. “We hypothesize that potential symptom changes may be in the character and quality of hearing, balance, rings, or feelings of wholeness as well as pressure,” he said. And sign up for our daily newsletter for more current information.
5. Numbness
It’s not just numbness – other stroke symptoms can actually be signs of a COVID infection. A study that will be published in the September issue of the Neuroimmunology & Neuroinflammation journal focused on the case of a woman presenting with symptoms of stroke, including numbness in her arm, a dropping face, and aphasia. She was tested for coronavirus, although she had no other symptoms, and tested positive.
According to CBS News, “The infatuated disease quietly caused her body to attack itself, inflate her brain, paralyze half of her body, leaving her unable to see or talk, and nearly killing her in the process. . ” And for more neurological symptoms of coronavirus, these common symptoms may mean that COVID is present in your brain.
