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Co-infection of COVID-19 and Flu

Coronavirus disease (COVID-19) is an infectious disease caused by the SARS-CoV-2 virus. Since the outbreak of COVID-19 in 2019, it has had a huge impact on people’s lives. 

According to the WHO, over 777 million cases and 7.1 million deaths from COVID-19 have been recorded worldwide since December 2019, the actual number is thought to be higher.

 

Seasonal flu is an acute respiratory infection caused by influenza viruses. Influenza A and B viruses circulate and cause seasonal epidemics of disease.

Annually, about 3 to 5 million cases of severe illness and 290,000 to 650,000 deaths from seasonal flu occur worldwide.


COVID-19 and Flu Symptoms

In many cases COVID-19 and flu cause similar symptoms, including cough, runny nose, sore throat, fever, headache and fatigue. Both COVID-19 and flu spread mainly between people who are in close contact with each other. 


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It can be hard to diagnose which condition based on symptoms alone. Testing is needed to confirm a diagnosis.

 

COVID-19 and Flu Co-infection

A study in The Lancet evaluated the clinical outcome of co-infections with respiratory viruses and SARS-CoV-2. Through respiratory multi-pathogen testing of 6,965 patients with SARS-CoV-2, it was found that compared with SARS-CoV-2 monoinfection, co-infection with influenaza viruses was associated with a 4.14-fold increased odds of receiving invasive mechanical ventilation (95% CI: 2.00-8.49) and a 2.35-fold increased odds of In-hospital mortality (95% CI: 1.07-5.12).

 

A meta-analysis showed that the risks of ICU admission, mechanical ventilation support, and mortality in patients co-infected with SARS-CoV-2 and influenza virus were 2.13 times (95% CI: 1.15-3.94), 5.02 times (95% CI: 2.38-10.59), and 4.84 times (95% CI: 2.21-10.61) higher than those in patients with influenza monoinfection.

 

It is possible to be sick with COVID-19 and flu at the same time. Testing is needed to confirm a diagnosis.

 

Detection Kit for Influenza A/B and 2019-nCoV

Daan Gene's Detection Kit for Influenza A/B and 2019-nCoV is based on RT-PCR technology, which can assist clinicians in accurately identifying respiratory infectious pathogens and timely identifying patients with co-infection, which helps reduce the severity and mortality rates.

 

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>> Learn More about Daan Gene Detection Kit for Influenza A/B and 2019-nCoV


Reference

1. https://www.who.int/

2. https://www.cdc.gov/

3. Swets, Maaike C et al. SARS-CoV-2 co-infection with influenza viruses, respiratory syncytial virus, or adenoviruses. The Lancet, Volume 399, Issue 10334, 1463 - 1464.

4. Yan Xiaolong,Zhang Mei,Ding Yusong,Jing Mingxia,Li Ke . Impact of influenza virus co-infection on prognosis of patients with SARS-CoV-2 infection: a meta-analysis[J]. Chinese Journal of Public Health,2023,39(12):1563-1571.

 

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Contact Us
No.19, Xiangshan Road, Huangpu District, Guangzhou, Guangdong Province, China
marketing@daangene.com +86-20-32290789-5225