Immune Systems Advisor

As rates of infection with influenza and RSV rose in fall/winter 2022, FLCCC adapted the I-PREVENT protocol to include prevention against these viruses. The interventions recommended are likely to reduce the risk and severity of infection with COVID-19, influenza, and RSV infections as well as the common cold. It should be noted that the medications included in the I-PREVENT protocol are inexpensive, safe, and widely available. This protocol includes a section for pre-exposure (long-term) as well as a post-exposure (acute, short-term). ( Independent Medical Alliance ) About this Protocol The information in this document is FLCCC recommended approach to COVID-19 based on the best (and most recent) literature. It is provided as guidance to healthcare providers worldwide on the early treatment of COVID-19. Patients should always consult with their provider before starting any medical treatment. New medications may be added and/or changes made to doses of existing medications a...

The Front Line COVID-19 Critical Care (FLCCC*) Alliance was initially formed as a working group during the early COVID-19 pandemic days in response to multiple early reports of COVID patients with an inexplicably high need for prolonged mechanical ventilation and an excessive death rate.  *The FLCCC Alliance is now the  Independent Medical Alliance Based on rapidly emerging clinical trials evidence, the FLCCC team has developed the   I-MASK+ protocol   ( is now divided into I-Prevent and I-Care protocols ) for prophylaxis and at home treatment of early stage COVID-19. Quercetin, zinc and a number of nutrients and drugs are part of this protocol, not only for critical care but also for prophylaxis and mild disease being treated at home. This article, we will dive deeper to provide the scientific background, related references and rationale of the FLCCC protocols. December 2025 Update: The Stratus Variant (XFG): Symptoms, Global Spread, and Impact in Late 2025 FLCCC ( ...

The Stratus variant, scientifically designated as XFG, is a sublineage of the Omicron family of SARS-CoV-2 (the virus causing COVID-19). The XFG strain is a hybrid of two other Omicron sub variants: LF.7 and LP.8.1.2. For the four-week period ending December 20, 2025 ( CDC.gov ), the dominant variant nationwide is XFG, with 61% of cases, followed by XFG.14.1, with 15% of cases, and XFG.1, with 5% of cases. Currently subvariants of omicron are circulating, including XFV, NW.1 and XFZ." It was first detected in Southeast Asia in January 2025 and classified by the World Health Organization (WHO) as a Variant Under Monitoring (VUM) on June 25, 2025. XFG is characterized by specific genetic mutations, including JF1 + S:T22N, S:S31P, S:R190S, S:R346T, S:K444R, S:V445R, S:F456L, S:N487D, S:Q493E, and S:T572I, which contribute to its increased transmissibility compared to some prior Omicron subvariants. As of late 2025, WHO assessments consistently rate the global public health risk from ...