COVID-19 may have longer incubation period of eight days, scientists say
Beijing: The incubation period of COVID-19, which is the time after which those infected with the novel coronavirus start showing the first symptoms, could be as much as eight days -- longer than previous estimates of four to five days says a new study which involved the largest amount of patient samples to date in such an analysis.
The research, published in the journal Science Advances, identified pre-symptomatic individuals at their time of departure from the Chinese city of Wuhan, where the COVID-19 pandemic originated, and then followed these infected people until their symptoms developed.
According to the scientists, including Chong You from Peking University in China, the existing estimates of four to five days for the incubation period were based on small samples sizes, limited data, and self-reports that could be biased by the memory or judgement of the patient or interviewer.
In the current study, they developed a low-cost approach to estimate incubation periods, and applied it to 1,084 confirmed cases of COVID-19 that had known histories of travel or residency in Wuhan.
The method has better accuracy by relying on a public database of dates of infection, and uses statistical methods to reduce recall bias -- the inaccurate recollection of past events, the scientists said.
Using the new approach, the researchers calculated that the average incubation period was 7.75 days, with 10 percent of the patients showing an incubation period of 14.28 days.
They said the findings may concern health authorities relying on the standard 14-day quarantine, but cautioned that their approach relies on several assumptions and may not apply to later cases in different parts of the world where the virus may have mutated.
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Petrol pump worker killed as SUV hits motorcycle head-on in Gurugram
Gurugram (PTI): A petrol pump worker died after an SUV rammed into his motorcycle in the Sushant Lok area here, police said on Thursday.
The accused driver fled the scene, leaving the vehicle after the accident. An FIR has been registered at the Sushant Lok police station, they said.
According to police, the accident occurred on Wednesday afternoon when Mukesh was travelling from Sector 44 to Sushant Lok on Vyapar Kendra Road for some work.
Near Vyapar Kendra, a white Thar coming from the wrong side at high speed hit his motorcycle head-on, leaving him critically injured, they said.
The driver fled the scene, leaving the vehicle behind, police added.
Eyewitnesses claimed the vehicle had no number plates either at the front or rear.
Locals took Mukesh to a private hospital, where he died during treatment, police said. He was a resident of Rohta Patti in Palwal and worked at a petrol pump in Sector 44.
An FIR was registered against the unidentified driver, based on a complaint lodged by his brother Ashok. The body was handed over to the family after a post-mortem on Thursday, police said.
“The Thar vehicle has been seized from the spot. CCTV footage from the area is being examined, and the driver will be arrested soon,” a Gurugram police spokesperson said.
