The first US identification of the strain was on June 27, 2025, through the CDC’s Traveler-Based Genomic Surveillance program in a person traveling to the United States from the Netherlands . . . “BA.3.2 represents a new lineage of SARS-CoV-2, genetically distinct from the JN.1 lineages (including LP.8.1 and XFG) that have circulated in the United States since January 2024” . . . “Phylogenetic analyses have identified the emergence of two BA.3.2 sublineages (BA.3.2.1 and BA.3.2.2), indicating ongoing viral evolution” . . . As BA.3.2 mutations in the spike protein could reduce protection from a vaccination or infection, “continued genomic surveillance is needed to track SARS-CoV-2 evolution and determine its potential effect on public health” . . .
STUDY - MMWR - Early Detection and Surveillance of the SARS-CoV-2 Variant BA.3.2 — Worldwide, November 2024–February 2026 - https://www.cdc.gov/mmwr/volumes/75/wr/mm7510a1.htm