Current CDC surveillance data indicate no active outbreaks meeting the stringent criteria for a Level 4 Travel Health Notice, defined as extreme risk with no available precautions. Routine monitoring of influenza, mpox, Ebola in the Democratic Republic of the Congo, and dengue shows moderate transmission without exponential growth or novel high-fatality variants as of late May 2026. Recent notices remain at Level 1 for dengue across 16 countries and Level 2 for polio in 32 nations, consistent with historical patterns of contained circulation. This stable epidemiological baseline, absent sudden escalations in case counts or transmissibility, underpins trader consensus favoring no new Level 4 issuance through year-end, though evolving model projections or unexpected variant emergence could shift conditions.