
ALT Poster with a peach-and-gold background that reads “Journey to Titan” in bold orange text, with a banner beneath it that says “Fly your name to another world!” Below the headline, NASA’s Dragonfly rotorcraft flies through a hazy sky with its rotors spinning, with faint hexagon patterns in the background.

ALT The US has at least 44 states and territories with COVlD outbreaks, a figure identical to last week. The CDC continues to make large, upward retroactive corrections, and we are in a secondary wave peak. States with observed outbreaks include Alaska, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, Florida, Georgia, Guam, Hawai’i, Idaho, Illinois, Indiana, Kansas, Kentucky, Maine, Maryland, Massachusetts, Michigan, Mississippi, Missouri, Montana, Nebraska, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, Ohio, Oregon, Pennsylvania, Puerto Rico, Rhode Island, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, and West Virginia. Additional states with poor monitoring likely have outbreaks based on high levels in bordering counties in adjacent states.

ALT US COVID-19 heat map dated 19 October 2026, produced by the Pandemic Mitigation Collaborative (PMC), using CDC wastewater data last updated 10 October. - Outbreaks: At least 44 US states and territories experiencing COVID-19 outbreaks. - Western US: Widespread very high activity, particularly California, Oregon, Washington and neighbouring states. - Southeast: Extensive high to very high activity across Florida, Georgia, Alabama and the Carolinas. - Northeast: Numerous high-activity areas, particularly along the Atlantic coast. - Midwest: Mixed activity, ranging from very low to very high. - Estimated infectious prevalence: Very low: below 0.9%; Low: 1.2%; Moderate: 2.0%; High: 2.9%; Very high: above 3.5%. - Trend: PMC reports an apparent secondary peak following upward CDC data revisions. - Map colours: Pale blue, green, orange, red and purple indicate increasing activity levels.

ALT Pandemic Mitigation Collaborative (PMC) National COVID-19 Estimates for the United States, dated 19 October 2026, showing modelled infections, Long COVID cases and excess deaths. - Actively infectious: 1 in 57 Americans (1.7%). - New daily infections: 858,000. - Infections in the past week: 6.16 million. - Total infections in 2026: 151 million. - Cumulative infections per person: 5.61. - Estimated Long COVID cases from daily infections: 43,000–172,000. - Estimated Long COVID cases from weekly infections: 308,000–1.23 million. - Estimated excess deaths resulting from daily infections: 210–370. - Estimated excess deaths resulting from weekly infections: 1,500–2,600. All figures are PMC model estimates, not confirmed case counts. Source: PMC COVID-19 Model, pmc19.com, 19 October 2026.

ALT Pandemic Mitigation Collaborative (PMC) COVID-19 State Prevalence Estimates, 19 October 2026, showing estimated infectious prevalence and transmission risk across 25 US states and territories. - Highest prevalence: Mississippi 6.3% (1 in 16), Florida 5.2% (1 in 19), Hawaii 4.8% (1 in 21) and California 4.7% (1 in 21). - Other high estimates: Georgia 3.9%, Connecticut 3.6%, Maryland 3.5%, Guam 4.3%, Kentucky 3.3% and Delaware 3.2%. - Lowest prevalence: Arizona and Minnesota 0.5%, Michigan 0.8%, Indiana 0.8%, Illinois and Iowa 0.9%. - Room transmission risk: In Mississippi, estimated probability of at least one infectious person is 48% in a room of 10, 81% in 25, 96% in 50 and over 99% in 100. - CDC classifications: Standard and revised levels shown side by side. - Note: CDC categories were revised downwards in August 2026. Some states have limited data. All figures are model estimates, not confirmed infections.

ALT Pandemic Mitigation Collaborative (PMC) COVID-19 State Prevalence Estimates, 19 October 2026, showing estimated infectious prevalence and transmission risk across 27 US states and territories. - Highest prevalence: Oregon 6.7% (1 in 15), Washington 6.0% (1 in 17), US Virgin Islands 5.3% (1 in 19) and Puerto Rico 4.8% (1 in 21). - Other high estimates: Tennessee 4.4%, Montana and South Carolina 3.6%, North Carolina 3.1% and New Jersey 2.8%. - Lowest prevalence: New York, Ohio and Wyoming 0.5%, Oklahoma 0.5% and West Virginia 0.6%. - Room transmission risk: In Oregon, estimated probability of at least one infectious person is 50% in a room of 10, 82% in 25, 97% in 50 and over 99% in 100. - CDC classifications: Standard and revised levels shown side by side. - Note: CDC categories were revised downwards in August 2026. Some states have limited reporting. All figures are model estimates, not confirmed infections.

ALT The US has at least 44 states and territories with COVlD outbreaks. The CDC made large, upward retroactive corrections to prior estimates, and we are now in an apparent secondary peak. States with observed outbreaks include Alabama, Alaska, Arizona, California, Colorado, Connecticut, Delaware, Florida, Georgia, Guam, Hawai’i, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, New Hampshire, New Jersey, New Mexico, New York, North Carolina, Oregon, Pennsylvania, Puerto Rico, Rhode Island, South Carolina, Tennessee, Texas, U.S. Virgin Islands, Utah, Vermont, Virginia, Washington, West Virginia, and Wyoming. Additional states with poor monitoring likely have outbreaks based on high levels in bordering counties in adjacent states.




































