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Hubei reports nearly 15,000 new COVID-19 cases with new method of diagnosis

Hubei reports nearly 15,000 new COVID-19 cases with new method of diagnosis

People dressed in protective clothes disinfect an area in Wuhan, in Hubei province on Jan 30, 2020. (Photo: AFP/Hector Retamal)

BEIJING: China's Hubei province on Thursday (Feb 13) reported a sharp rise in confirmed coronavirus cases and a surge in the death toll after the adoption of new methodology for diagnosis, health officials said.

The death toll leapt by a record 242, more than double the prior provincial daily record of 103 set on Monday, , while the number of new cases soared by 14,840 - also a daily record - to a total of 48,206 cases in Hubei.

Health officials in the province, the epicentre of the epidemic, said they had started including people diagnosed using the new methods from Thursday. Excluding cases confirmed using the new methods, the number of new cases rose by only 1,508, the official data showed.

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The provincial health commission said last week that it would begin recognising computerised tomography (CT) scan results as confirmation of infections, allowing hospitals to isolate patients more quickly.

It also said it had revised its old data and previous assessments of suspected cases.

Hubei health commission said the change would mean patients could get treatment "as early as possible" and be "consistent" with the classification used in other provinces.

It said it had made the change "as our understanding of pneumonia caused by the new coronavirus deepens, and as we accumulate experience in diagnosis and treatment".

In a update on Wednesday afternoon, the toll across China went up by 254 from the previous day to reach 1,367 deaths, with 15,152 new infections bringing the total to 59,805.

The number of COVID-19 coronavirus cases as of Thursday (Feb 13).

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Experts questioned the change, with Victor Shih, a specialist in Chinese politics at the School of Global Policy & Strategy at UC San Diego, saying the sudden jump in new cases raises questions about China's commitment to transparency.

"The adjustment of the data today proved without doubt that they have had two sets of numbers for confirmed infected all along," he said. "If that were not the case, the government could not have added so many new cases in one day.

"A very disturbing aspect of today’s new numbers is that the vast majority of new cases accrued to Wuhan, but what if the rest of Hubei province still did not adjust their reporting methods?"

Volunteers in protective suits help a man with registration at a checkpoint of a residential compound, following the outbreak of the novel coronavirus in Wuhan, Hubei province, China February 9, 2020. Picture taken February 9, 2020. China Daily via REUTERS

Hubei had previously only allowed infection to be confirmed by RNA tests, which can take days to process and delay treatment. RNA, or ribonucleic acid, carries genetic information allowing for identification of organisms like viruses.

Using CT scans that reveal lung infection would help patients receive treatment as soon as possible and improve their chances of recovery, the commission said.

It could also lead to a spike in the death toll, according to Raina McIntyre, head of biosecurity research at the Kirby Institute at the University of New South Wales in Sydney.

"Presumably, there are deaths which occurred in people who did not have a lab diagnosis but did have a CT. It is important that these also be counted," she told Reuters.

She said the numbers could all be revised retrospectively from December, and it now depended on whether the more severely ill patients were confirmed by lab diagnoses and therefore included in the original numbers. If many of them were diagnosed using the newly included CT method and only now added to the total number of cases, then the death rate could rise.

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"I think the new category 'positive test' (which is different from 'confirmed case') is more likely to reflect asymptomatic cases. Ideally these should be reported too, or we do not get a complete picture," said McIntyre.

A shortage of RNA test kits in Hubei's capital Wuhan, where the virus is believed to have originated, has been a problem and may have delayed patients from being properly diagnosed and treated, contributing to the spread of the virus in the early days of the outbreak.

China has placed around 56 million people in virtual quarantine in Hubei since late last month and restricted movements of millions more in cities far from the epicentre in an unprecedented effort to contain the virus.

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