Persistent SARS-2 infections contribute to long COVID-19

Area of Science:

• Virology
• Immunology
• Infectious Diseases

Background:

• COVID-19 has caused significant mortality and long-term morbidity, known as long COVID.
• Long COVID presents considerable and sustained health challenges for millions worldwide.

Purpose of the Study:

• To propose a hypothesis that persistent systemic infection contributes to long COVID.
• To explore the potential role of SARS-CoV-2 superantigen in viral persistence.

Main Methods:

• The study is a hypothesis-driven review of existing literature on SARS-CoV-2 infection and long COVID.
• It examines the concept of persistent infection indicated by viral RNA shedding.
• It discusses the potential mechanism of viral superantigens in immune dysregulation.

Main Results:

• Persistent SARS-CoV-2 infection, evidenced by continued RNA shedding, is proposed as a cause of long COVID.
• The SARS-CoV-2 superantigen may trigger immune responses that paradoxically facilitate viral persistence.
• This mechanism involves overstimulation of anti-virus immunity, creating negative feedback loops.

Conclusions:

• Long COVID morbidity may stem from persistent systemic SARS-CoV-2 infection.
• Complete viral clearance is suggested as a potential therapeutic strategy for long COVID.
• Further research is needed to validate the role of superantigens and persistent infection in long COVID pathogenesis.