If it persists, you should contact your GP. Although it can be a Covid symptom, most people with a sore throat will probably just have a cold. While people who have Covid might not lose their sense of smell completely, it may change, so you may not be able to smell strongly-scented things, and your sense of taste may be affected too, so food may taste different or seem tasteless.
A persistent cough is widely agreed to be one of the three main symptoms of Covid but, according to the ZOE study, only around four in 10 people who are ill with the virus will experience this. A Covid cough is usually a dry cough, compared with a chesty one that brings up phlegm or mucus and that may indicate a bacterial infection.
A persistent cough tends to arrive around a few days into the illness and usually lasts for around four or five days.
Here's why, and what it feels like. The omicron coronavirus symptoms you should watch out for and how to know if you have the omicron variant.
As evidence mounts that the omicron variant is less deadly than prior COVID strains, one oft-cited explanation is that viruses always evolve to become less virulent over time. The idea that infections tend to become less lethal over time was first proposed by notable bacteriologist Dr.
Theobald Smith in the late s. Simple and elegant, Smith's theory was that to ensure their own survival, pathogens evolve to stop killing their human hosts. Polish scientists have found a gene that they say more than doubles the risk of becoming severely ill with COVID, a discovery they hope could help doctors identify people who are most at risk from the disease.
With vaccine hesitancy a major factor behind high coronavirus death rates in central and eastern Europe, researchers hope that identifying those at greatest risk will encourage them to get a shot and give them access to more intensive treatment options in case of an infection. Following her remarks, the World Health Organisation WHO , which called the new strain "a variant of concern" urged caution.
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