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1.
Lancet Glob Health ; 10(11): e1612-e1622, 2022 11.
Article in English | MEDLINE | ID: covidwho-2069828

ABSTRACT

BACKGROUND: The transmission dynamics of influenza were affected by public health and social measures (PHSMs) implemented globally since early 2020 to mitigate the COVID-19 pandemic. We aimed to assess the effect of COVID-19 PHSMs on the transmissibility of influenza viruses and to predict upcoming influenza epidemics. METHODS: For this modelling study, we used surveillance data on influenza virus activity for 11 different locations and countries in 2017-22. We implemented a data-driven mechanistic predictive modelling framework to predict future influenza seasons on the basis of pre-COVID-19 dynamics and the effect of PHSMs during the COVID-19 pandemic. We simulated the potential excess burden of upcoming influenza epidemics in terms of fold rise in peak magnitude and epidemic size compared with pre-COVID-19 levels. We also examined how a proactive influenza vaccination programme could mitigate this effect. FINDINGS: We estimated that COVID-19 PHSMs reduced influenza transmissibility by a maximum of 17·3% (95% CI 13·3-21·4) to 40·6% (35·2-45·9) and attack rate by 5·1% (1·5-7·2) to 24·8% (20·8-27·5) in the 2019-20 influenza season. We estimated a 10-60% increase in the population susceptibility for influenza, which might lead to a maximum of 1-5-fold rise in peak magnitude and 1-4-fold rise in epidemic size for the upcoming 2022-23 influenza season across locations, with a significantly higher fold rise in Singapore and Taiwan. The infection burden could be mitigated by additional proactive one-off influenza vaccination programmes. INTERPRETATION: Our results suggest the potential for substantial increases in infection burden in upcoming influenza seasons across the globe. Strengthening influenza vaccination programmes is the best preventive measure to reduce the effect of influenza virus infections in the community. FUNDING: Health and Medical Research Fund, Hong Kong.


Subject(s)
COVID-19 , Influenza, Human , COVID-19/epidemiology , Humans , Influenza, Human/epidemiology , Influenza, Human/prevention & control , Pandemics/prevention & control , Public Health , Seasons
2.
Traditional Medicine Research ; 5(4):178-181, 2020.
Article in English | GIM | ID: covidwho-1353079

ABSTRACT

On April 14, 2020, the State Council of China announced that "three proprietary Chinese medicines and three decoctions" of effective traditional Chinese medicine (TCM) in the treatment of the novel coronavirus pneumonia have passed clinical practice screenings. Some scholars believe that early TCM intervention of mild and moderate cases and recovery period may reduce the ratio of mild cases progressing into severe and critical cases. Some data have also suggested that the combination of TCM and Western medicine may reduce the mortality rate in severe and critical cases.

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