Tests were developed for the new virus and recorded cases started to surge. The first human cases were publicly reported from the Chinese city of Wuhan, where approximately 11million people live, after medics first started publicly reporting infections on December 31.Д«y January 8, 59 suspected cases had been reported and seven people were in critical condition. The animal origin of the new coronavirus is not yet known.' 'Coronaviruses are known to be able to occasionally jump from one species to another and that is what happened in the case of SARS, MERS and the new coronavirus.

Four of these cause a mild common cold-type illness, but since 2002 there has been the emergence of two new coronaviruses that can infect humans and result in more severe disease (Severe acute respiratory syndrome (SARS) and Middle East respiratory syndrome (MERS) coronaviruses). 'Until this new coronavirus was identified, there were only six different coronaviruses known to infect humans. The disease that the virus causes has been named COVID-19, which stands for coronavirus disease 2019.Дr Helena Maier, from the Pirbright Institute, said: 'Coronaviruses are a family of viruses that infect a wide range of different species including humans, cattle, pigs, chickens, dogs, cats and wild animals. The name stands for Severe Acute Respiratory Syndrome coronavirus 2.Д®xperts say the bug, which has killed around one in 50 patients since the outbreak began in December, is a 'sister' of the SARS illness which hit China in 2002, so has been named after it. It has been named SARS-CoV-2 by the International Committee on Taxonomy of Viruses. The coronavirus from Wuhan is one which has never been seen before this outbreak. Coronaviruses are named after the Latin word 'corona', which means crown, because they are encased by a spiked shell which resembles a royal crown.

Viruses break into cells inside their host and use them to reproduce itself and disrupt the body's normal functions.

In survivors of the disease, dyspnoea would cease after about 13 days, whileВ the average time to death was 18.5 days.ДЄ coronavirus is a type of virus which can cause illness in animals and people. The average duration of fever вЂ“ an early sign of COVID-19 вЂ“ was about 12 days, but a cough associated with the illness may stay around for longer, they said. The second Wuhan study also said it observed that the average hospital stay was 10 days.Дay 12: Fever tends to end at around this point, according to the first Wuhan study. The 14-day period starts from the day when the first person in the house became ill.Дay 8: Patients with severe cases develop signs of acute respiratory distress syndrome (ARDS) at this point, where the lungs can't provide the body's vital organs with enough oxygen.ДЎ5 per cent of cases reach this point, according to the Chinese Center for Disease Control and Prevention.Дay 10: Patients with worsening breathing problems tend to be entered into an intensive care unit at day 10. Government says that if you live with others and you or one of them have symptoms of coronavirus, then all household members must stay at home and not leave the house for 14 days. In the second Wuhan study, of 138 patients, about 10 per cent experienced diarrhea and nausea a couple of days prior to development of fever and dyspnea.Дay 7: At this point patients showing signs of dyspnea tend to be admitted to hospital.Д¬DC advises that anyone with emergency warning signs for COVID-19 вЂ“ persistent chest pain or pressure, shortness of breath and bluish lips or face вЂ“ should get medical attention.Дay 7 is also the point at which for the vast majority of patients вЂ“ aboutВ 85 per cent вЂ“ that symptoms start to diminish and coming out of isolation is a possibility, the second study claims. 'Yet it was so mild to begin with, I barely gave it a second thought.'Дay 5: Patients have difficulty breathing вЂ“ known as dyspnea вЂ“ if they are older or have a pre-existing health condition.Д¬enters for Disease Control and Prevention says that symptoms that occur two to 14 days after exposure are fever, cough and shortness of breath. Day 1: Patients experience a fever and may also experience fatigue, muscle pain and a dry cough.ДЄ small minority may have had diarrhea or nausea one to two days before, Business Insider reports.Дr Clare Gerada, 60, a GP in London, and former chair of the Royal College of GPs, said that she started feeling symptoms as a slight dry cough and tiredness.

Covid 19 symptoms timeline