extension and recommended to continue following the 21-day interval suggested by the manufacturer. however, invima also stated that the government was not prevented to extend the interval of vaccines if there was enough scientific research backing such a measure and if further development of the pandemic and the vaccination campaign warranted it. at the same time, the ministry of health also requested to extend the interval of the moderna vaccine (made under the same technology as the pfizer one) to 84 days. on 3 september 2021, the interval of the moderna vaccine for people without comorbidities aged below 50 was also extended to 84 days, citing the scientific evidence available, the experiences of other countries with this vaccine as well as colombia's own experience with vaccines from other manufacturers. on 16 september 2021, the ministry of health issued new guidelines for vaccine rollout, aiming to achieve the goal of 35 million people immunized by 31 december 2021: population aged over 18 will be administered any of the oxford–astrazeneca, sinovac or janssen vaccines. population aged 12–17 will be vaccinated with pfizer, and due to the limited availability of that vaccine, the moderna one could also be used for this age group pending approval by invima. highly dispersed populations, especially those based in remote areas of the vichada, chocó, and la guajira departments, will be covered with the janssen single-dose vaccine. the recommendation to administer the second dose of the pfizer, moderna, and astrazeneca vaccines after 84 days was kept in place, except for those people who might need to receive their second dose at a shorter interval for traveling or study reasons, in which case they might get their second dose at any moment between the 24th and the 84th day after their first dose. booster doses on 16 september 2021, accompanying updates to the national vaccination plan, the ministry of health approved booster doses for people aged over 70. the first booster doses were administered on 1 october. on 19 november 2021, the minimum age was lowered to 50. on 21 december 2021, the minimum age was lowered to 18. initially, boosters were available by appointment only and could be scheduled through healthcare providers (eps). when the minimum age was lowered to 18, boosters were administered even without eps and without appointment. the rollout began with people over 70 because this age group has lower immune capacity and higher mortality rates, and for them a third dose can be especially protective. the ministry advised that individuals receive a booster dose from the same manufacturer as their previous doses, or an mrna vaccine such as the pfizer or moderna ones, and that it be administered at least six months after their second dose. on 6 may 2022, the government authorized a fourth dose for everyone over 50. support uber announced that, beginning 12 april 2021, it would offer up to 25,000 free rides, valued at a maximum of cop 10,000 per ride, if they were taken to or from a vaccination center. each person could request up to two rides through the app. opinion polling before vaccinations began, a poll conducted from 9 november to 10 december 2020 by the national administrative department of statistics (dane) found that only half of colombians wanted to be vaccinated against coronavirus. in quibdó, 72 percent said they wanted the vaccine, but in cali, only 43 percent wanted it. among those who said they did not want the vaccine, most said they feared side effects. in bogotá, a poll conducted 9–25 february 2021 found that 58% wanted to be vaccinated, 19% did not, and 23% were still unsure. polls conducted between january and march 2021 in 23 cities, as analyzed by the dane found that 76% of men and 70% of women wanted to be vaccinated. progress on 6 may 2022, president duque celebrated having achieved the original goal of vaccinating 70% of the colombian population, or 35.7 million people. the information below is sourced from the official daily statistics published by the ministry of health of colombia. cumulative vaccinations doses by department as of 16 august 2022 departmentpopulation (est. 2021)assigned dosesadministered doses amazonas80,464145,842143,782 antioquia6,782,58411,746,99912,650,795 arauca301,270405,457418,967 atlántico2,771,1394,971,4265,124,420 bogotá, d.c.7,834,16714,817,22216,259,697 bolívar2,213,0613,494,2093,805,572 boyacá1,251,6752,230,3332,442,297 caldas1,027,3141,906,5091,888,850 caquetá414,841505,526507,863 casanare439,238684,606737,118 cauca1,504,0441,633,1931,550,774 cesar1,322,4661,893,9031,925,128 chocó549,225510,852462,409 córdoba1,844,0762,679,2842,713,976 cundinamarca3,372,2214,888,2575,388,340 guainía51,45060,04055,103 guaviare88,490109,840120,047 huila1,131,9341,717,3701,819,813 la guajira987,7811,209,9201,349,680 magdalena1,449,0872,188,5772,261,952 meta1,072,4121,562,9681,625,608 nariño1,627,3862,274,3832,463,565 norte de santander1,642,7462,531,3012,648,060 putumayo364,085366,055357,134 quindío562,1771,157,9491,113,309 risaralda968,6261,752,3331,830,701 san andrés64,672137,703132,732 santander2,306,4553,836,9433,956,857 sucre962,4571,444,3261,552,247 tolima1,343,8982,447,5242,528,355 valle del cauca4,556,7527,329,5217,757,296 vaupés46,80846,43943,152 vichada114,557105,06487,187 colombia51,049,49882,791,87487,738,036 including barranquilla. including cartagena. including santa marta. including buenaventura.