and screen all entering customers for fever with thermometers. the guam office of the united states census bureau announced that they would begin a phased reopening of operations to conduct the 2020 census starting on may 11, with full functioning not expected for several weeks. all 26 students of the university of guam's nursing program chose to graduate in an accelerated program so they could take their licensing exams and enter the workforce early. may 9: gov. leon guerrero stated that the mandatory 14-day quarantine of all arrivals to guam, located at the pacific star resort & spa, would continue at least until guam entered pcor 3. may 17: the joint information center announced that contracts had been signed with hotel santa fe and wyndham garden guam to act as quarantine facilities for incoming travelers. occupants in quarantine at the pacific star were to be transferred. may 18: the re-opening of the department of revenue and taxation in barrigada for the first time since march drew an overflow crowd seeking to register vehicles and resolve tax situations. guam police and national guard were on hand to ensure order. gov. leon guerrero indicated that the government is planning to allow dine-in service at restaurants, at 50% capacity, starting on may 25, assuming that she receives draft public health guidance for consideration on may 21. leon guerrero also indicated that yoga and pilates businesses may be allowed to open soon as well, though she indicated that gyms are "a little bit more risky." may 21: a "residential cluster" of ten positive cases were discovered through contact tracing and had contact with two other confirmed cases; the one unrelated positive case was also traced via a confirmed case. the governor stated that the island would not elevate to pcor 1. uss theodore roosevelt returned to sea with a reduced number of crew to conduct carrier qualification flights for carrier air wing eleven. capt. carlos sardiello released a statement thanking the government and people of guam for their support and hospitality. may 22: with the discovery of a "residential cluster" in yigo, with the third largest single-day increase in confirmed cases since the pandemic began, govguam announced that guam will stay at pcor 2 with no immediate lifting of restrictions, as had been planned for may 25. may 23: archbishop michael j. byrnes announced that the archdiocese of agaña would begin conducting services inside churches starting on may 30. masks will be required and churches will be limited to 50% capacity. may 27: govguam announced that, barring a surge in new cases, the following operations are allowed to reopen on may 29, with specified conditions and safeguards: dine-in restaurants; churches; yoga, pilates, and dance businesses; and public beaches and parks. salad bars, buffets, and other types of food self-service are prohibited. groups of up to 25 will be allowed. similarly, beginning july 1, visitors from japan, south korea, and taiwan will be able to enter guam without a 14-day quarantine. gov. leon guerrero explained that those countries are not hotspots and have effective infection control. besides united airlines, which continues to be the sole carrier servicing guam, only korea's jeju air and philippines airlines have indicated that they would consider resuming operations to guam in the summer. the guam department of education indicated that high school students in summer school would physically meet with teachers once or twice a week and be otherwise remote. kindergarten though eight grade will continue with remote learning. gdoe assumes that guam will be at pcor 3 and school buildings will be open for the new school year, but is examining options for distance learning if not. june 2020 june 1: all govguam agencies reopened. gov. leon guerrero announced that returning residents will be allowed to quarantine at home, as long as they have proof of residence. june 4: uss theodore roosevelt left guam about two months after it first docked amid its outbreak. some sailors who had not yet been medically cleared remained on naval base guam. june 8: food courts, gyms, pools, and water parks were allowed to open, with specified health protocols. govguam announced that arrivals from "international hot spots" would have to undergo a 14-day quarantine. the five-day rolling positivity rate for testing was 0.34%, compared to the 3% benchmark the government had set to move to pcor 3. an advisor to the governor indicated that guam was on track to move to pcor 3 on july 1. june 9: the first new confirmed covid-19 case in several days was identified on andersen air force base and described as asymptomatic. june 10: a study on the outbreak aboard uss theodore roosevelt found that two-thirds of sailors had been infected. june 12: the resumption of philippine airlines' service to manila was delayed until june 15 due to "evolving national and provincial government restrictions and limitations." guam had designated the philippines as a "hotspot" requiring travelers to quarantine for 10 days. june 13: naval base guam restored all-week access to military facilities for all authorized users on guam. june 15: govguam increased the standard for confirmed cases to be released from quarantine to 10 days after recovery. june 16: philippine airlines resumed flights to guam, with plans to operate weekly flights in july. korean air, jin air, jeju air and t'way air tentatively plan to resume flights on july 27, subject to travel demand and the lifting of mandatory quarantines in south korea. japan airlines extended it flight suspension to july 31, while china airlines has suspended flights through august. june 17: authorities revealed a cluster of seven air force airmen that arrived on guam on may 25 and were housed together at a local hotel. seventeen days after arrival one of the airman began showing symptoms. covid-19 is generally thought to become symptomatic within 14 days. the department of public health and social services and andersen air force base are contact tracing. june 19: bars, taverns, daycare centers, bowling alleys, travel agencies, museums, zoos, and aquariums were allowed to open at 50% capacity. bars were allowed to open at 25% capacity and bar-restaurants at 50% capacity. the guam visitors bureau reported that tourism-related retail sales have dropped $34 million per week from before the pandemic. june 22: the total air force service members infected with coronavirus reached 37. the cluster in the air force unit that was housed at the guam reef hotel reached 35 infected. all members of the unit were tested and put in mandatory quarantine on andersen air force base. several airmen reportedly violated orders limiting their movement to the hotel and their work on base, and potentially exposed local businesses and employees. dphss was notifying businesses and planned to conduct testing of potentially exposed employees. rear adm. john menoni, joint region marianas commander, stated, "today we don't have all the facts as to how and why. we know we have an issue, we are working to find solutions, we need to fix this problem." dphss has gov. lou leon guerrero indicated that the government is looking to reopen more business types and increase the limit on social gatherings to 50, from 25, on july 1. she stated "our infection rate, even with the increase through the military, still remains below 1%. that is still really amazing." leon guerrero further stated that plans to lift the mandatory quarantine on incoming travelers by july 1 remained on track, but that shifting to pcor 3 remained tentative. june 23: a positive test came back for someone with no known contact with other confirmed covid cases. june 24: dphss identified 30 businesses visited by airmen in the guam reef hotel cluster who tested positive for covid-19. residents who patronized these businesses on affected dates were urged to closely monitor their health as dphss arranged for additional testing capacity in the following week. disaster food relief distributions will restart on june 25, 2020 and continue every other thursday, on a first-come, first-served basis. june 25: a symptomatic department of corrections employee was one of 14 new positive cases. dphss confirmed that the initial patient at the guam reef hotel outbreak was a local resident. dphss director linda unpingco-denorcey announced that she would retire on july 3, with laurent duenas to become acting director. june 26: gov. leon guerrero extended the public health emergency through july and canceled the reopening of tourism planned for july 1. gatherings will limited to 25 people through july 1. the islandwide beach cleanup and beautification scheduled for june 27 was canceled. guam had the greatest one-week increase of confirmed covid-19 cases in the united states at 438%. the governor appealed for continued vigilance from the public. june 27: govguam announced that new cases were due to community spread. travelers to guam from designated "high-risk areas" must quarantine in a hotel approved by the government. this is waived for arrivals who have a negative pcr test taken within 72 hours of arrival, who may quarantine at home. travelers in government facilities may take a test on day 7 or day 10 of their quarantine, subject to availability. a negative test will allow release from quarantine, though they will be monitored for symptoms through day 14. june 30: the guam education board approved a plan for school reopening, with staggered schedule and mandatory hygiene practices and temperature screening. no dates were set, as they will depend upon pandemic conditions. july 2020 july 1: guam developed a covid area risk (car) score metric to evaluate the need for testing from incoming travelers. it would eventually be applied internally to track the daily status of the disease on guam. car score = daily new cases per 100k × √test positivity rate − effective retransmission value (rt) july 2: andersen air force base re-restricted access to the base to mission essential personnel. july 3: the number of active cases surpassed 100 for the first time since early april. july 8: govguam added additional u.s. states and countries as "high risk areas" requiring quarantine for incoming travelers. gov. leon guerrero stated that they were averaging 200 tests per day, with more than 16,300 tests total since the pandemic began, or about 9.2% of the population. felix cabrera, head of the governor's medical advisory group, said that there are five new cases daily on average, at a 1.59% positive rate; five is the absolute "threshold for concern", but 3% is the percentage threshold of concern. july 10: japan airlines extended its flight suspension for guam to september 30. dphss closed six businesses primarily for lack of management certification, but also for failure to have neither a business pandemic plan nor posted signs promoting social distancing and masks. july 15: the number of travelers in mandatory quarantine in three designated hotels was 395. the guam ports authority appealed to expedite testing of a contractor who had flown in from atlanta, designated a hot spot, describing him as an essential worker for port upgrades. july 17: gov. lou leon guerrero announced that guam would move to pcor 3 at 12:01 am on monday, july 20, as covid-19 tracking and treatment metrics remain below the defined trigger points and all positive cases were being monitored and traced. all businesses not specifically prohibited will be allowed to operate at up to 50% capacity, or up to 10 people, whichever is greater. gatherings of up to 50 people are allowed. schools are permitted to open under defined minimum requirements. the public health emergency was extended to august 29 and social distancing measures continue to be mandated. july 20: guam moved to pandemic condition of readiness (pcor) 3. senior centers and organized sports remain prohibited. july 22: covid-19 cases increased by eight, of which six were travel-related cases identified in mandatory quarantine. a total of five cases are isolated for observation at guam memorial hospital. july 24: the guam visitors bureau predicted 250,000 to 300,000 arrivals in fiscal year 2021, compared to 1.6 million arrivals in fy2019. of 85 guam visitors bureau members surveyed, 82% lost revenue and 61% are not paying employees. south korea and taiwan were listed as "low-risk countries", from which arrivals do not need to be tested or quarantined, provided that they stay less than five days. july 26: fifteen bars were closed in the previous month because the