Introduction

A recent article from The Expose claims that Public Health Scotland has revealed that Covid-19 is no more deadly than seasonal flu. This claim is based on a study that reported an infection fatality rate (IFR) of 0.08% for Covid-19 in Scotland, which is within the range of the IFR for seasonal flu (0.03% to 0.1%). However, a closer examination of the data and scientific literature reveals significant misinterpretations and misinformation.

Understanding Infection Fatality Rates

The infection fatality rate (IFR) is a measure of the proportion of deaths among all infected individuals, including those who are asymptomatic or have mild symptoms. The IFR for Covid-19 has been a subject of intense study and debate throughout the pandemic.

A systematic review and meta-analysis published in the Lancet estimated the global IFR of Covid-19 to be around 0.68%, which is significantly higher than the IFR of seasonal flu.

The Winter Covid-19 Infection Study

The article from The Expose references the Winter Covid-19 Infection Study (WCIS), which reported an IFR of 0.0762% for Scotland. However, it is essential to note that this study has not been peer-reviewed and its methodology and findings should be interpreted with caution.

Moreover, the WCIS study focused on a specific time period (November 2023 to March 2024) and a specific population (participants in England and Scotland). The IFR can vary significantly depending on the population studied, the prevalence of comorbidities, and the availability of healthcare resources.

Covid-19 vs. Seasonal Flu

While the IFR is an important metric, it is not the only factor to consider when comparing the severity of Covid-19 and seasonal flu. Other factors include:

• Transmissibility: Covid-19 is more contagious than seasonal flu, with a higher basic reproduction number (R0). This means that Covid-19 can spread more rapidly and widely than seasonal flu.
• Hospitalizations: Covid-19 has resulted in a much higher number of hospitalizations and intensive care unit (ICU) admissions than seasonal flu. This has placed a significant burden on healthcare systems worldwide.
• Long-term effects: Many people who have recovered from Covid-19 continue to experience long-term symptoms, a condition known as 'long Covid.' The long-term effects of Covid-19 are still not fully understood, but they appear to be more severe and persistent than those of seasonal flu.

Conclusion

The claim that Covid-19 is no more deadly than seasonal flu is false. While the IFR of Covid-19 in Scotland was reported to be within the range of seasonal flu in a specific study, this finding is not representative of the global IFR of Covid-19, which is significantly higher. Furthermore, Covid-19 is more transmissible, results in more hospitalizations, and has more severe long-term effects than seasonal flu.

It is crucial to rely on peer-reviewed scientific literature and official public health guidance when evaluating claims about the severity of Covid-19. Misinformation can have serious consequences for public health and safety.