Mitigation methods to curb the spread of COVID-19 appear to decrease influenza transmission in the United States, Australia, Chile and South Africa. These methods would possibly increase influenza vaccines, especially for populations at high risk of seasonal influenza transmission.
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a new coronavirus, was first detected in Wuhan, Hubei Province, People’s Republic of China, in December 2019; subsequently, SARS-CoV-2 spread rapidly, leading to the COVID-19 pandemic. COVID-19 overshadows other similar respiratory illnesses like influenza. Sonja J. Olsen et al. report in CDC’s Weekly Morbidity and Mortality Report that positive influenza cases (from US respiratory samples) were reduced from 20% to 2. 3% in this pandemic.
Countries in the southern hemisphere also report the same observation, with low influenza activity. A low incidence of flu-like symptoms is reported, and among those who had flu tests, few tested positive. Interventions aimed at SARS-CoV-2 transmission, as well as flu vaccination, would possibly be causing low influenza activity in the United States and around the world.
Mitigation measures for the COVID-19 pandemic included individual measures such as dressing in masks, staying at home for sickness and social estating, as well as community-based measures such as final schools, banning mass meetings and orders to stay at home, etc. mandatory 14-day travel quarantines, curfews and national locks.
Initially, other people with respiratory symptoms were preferably tested for SARS-CoV-2, which may be just one feature of the observed decline in influenza virus; however, later, public health officials and doctors began testing samples for influenza. and little to no influenza viruses detected compared to the occurrence of influenza activity last year.
Australia has analyzed more flu samples, when the influenza epidemic in the southern hemisphere peaks. It also detected only a few positive results, despite poor criteria for analyzing respiratory samples compared to previous seasons.
While temperate climates in the southern hemisphere have no circulation of the influenza virus, there is a decrease in the United States, other northern hemisphere countries, and the tropics.
Decreased influenza may be due to a decrease in the number of others seeking or reporting breathing problems, as well as adjustments in flu virus flow. Influenza virus (Ro – 1. 28) is small compared to sarS-CoV -2 (R0 – 2-3. 5). As a result, although influenza is also transmitted mainly through droplets, such as SARS-CoV-2, mitigation measures that followed this pandemic era have particularly reduced influenza transmission.
Populations at increased risk of severe disease and flu headaches can continue to adapt mitigation measures to flu season in addition to being vaccinated against influenza, which can be useful for the elderly and the main threat, and also reduce the burden of medical care. .
The authors agree that it is difficult to separate the effect of general mitigation measures on influenza transmission this season. For example, school-age children transmit influenza, and end schools may well lessen the spread of influenza. However, as adults have other exposures, you can do so. demonstrate the effectiveness of influenza transmission this season.
According to the authors, the effects of this report have at least 4 limitations:
The spread of influenza is still monitored to determine whether low-level activity persists even after mitigation measures have been discontinued. However, in the existing dubious circumstances, it is essential to plan and prepare for the circulation of seasonal influenza, i. e. the 2020-2021 season of the northern hemisphere. In addition, a new multiple diagnostic check approved by the Food and Drug Administration (FDA) for the detection of SARS-CoV-2 and influenza viruses can improve prediction efforts and consult our disease mitigation methods.
With the close fact that this season SARS-CoV-2 and the flu virus can simply co-circular, the approach to flu prevention is flu vaccination (for all other people over 6 months). Given these limitations, the authors conclude. that the widespread implementation of measures to mitigate SARS-CoV-2 transmission is related to minimizing the incidence of influenza, which appears to be genuine and concomitant with the COVID-19 pandemic.
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Ramya holds a Ph. D. in biotechnology from the National Chemistry Laboratories (CSIR-NCL) in Pune. His paintings sought to functionalize nanoparticles with other molecules of biological interest, read the reaction formula and useful applications.
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