When the Shield Gets Thin

This release contains only the music track from Base by Base Episode 387. Song title: When the Shield Gets ThinOriginal Base by Base episode: 387: Homotypic Dengue Reinfections and Long-Term Antibody Decay Article metadata:Article title: Long-term antibody dynamics challenge the paradigm of lifelong homotypic immunity to dengue virusJournal: PNASDOI: 10.1073/pnas.2606206123Reference: Andrade J, Mitard de Girardie A, Huang AT, et al. Long-term antibody dynamics challenge the paradigm of lifelong homotypic immunity to dengue virus. PNAS. 2026;123(22):e2606206123. doi:10.1073/pnas.2606206123 Lyrics:Verse 1We thought the lightning only struck one timeSame face, same fever, same border lineBut numbers in the blood don’t hold that brightThey rise like a flare, then slip from sight Pre-ChorusA fast fall in the first few moonsThen a long, slow fade through quiet afternoonsYears pass by in a steady slideAnd the old “always” doesn’t always survive ChorusSo we count the echoes in the veinProtection isn’t permanent, it wanesMost of it moves in silence, unseenA shield gets thin, but life goes on betweenAnd when the bite comes back aroundWe learn what immunity leaves on the ground Verse 2In crowded days where mosquitoes humNearly every hit feels like nothing comesBut hidden sparks can still redraw the chartAge writes patterns on the antibody arcAnd after more than one hard-earned scarThe drop slows down—still drifting far BridgeNot every vaccine can promise “never again”If the curve keeps bending, if the memory thinsSo plan for the long night, not just the startWatch the slow decline like a beating heartBoost the light when the signal turns dimBuild the model where reality lives within Final ChorusYeah, we count the echoes in the veinProtection isn’t permanent, it wanesMost of it moves in silence, unseenA shield gets thin, but life goes on betweenAnd when the same storm wears a different crownWe don’t look away—we track it down