on 6 march. while the cdc had not tested the woman directly, it was confirmed that after the patient's initial positive result, two subsequent tests came back negative. it wasn't clear why she initially tested positive for covid-19, though cdc officials have said she might have had other respiratory illness. 1-15 march 2020 - imported cases on 7 march, the second case of the coronavirus was detected in a 38-year-old man, a cambodian in siem reap. he was among four people (three of the man's relatives and a japanese woman) placed under quarantine at siem reap provincial referral hospital, all of whom had direct contact with a japanese man in his 40s who left cambodia on 3 february and tested positive upon arrival in his country at chubu centrair international airport in tokoname, aichi. meanwhile, some 40 other people in the same city had been isolated under medical supervision since indirect contacts with the same japanese man. the government prompted its decision to close all schools and cancelled the upcoming songkran in the city. on 10 march, the ministry of health confirmed the country's third case. at 4:30 p.m., a 65-year-old british woman had tested positive for the virus in kampong cham. she was a passenger of a cruise ship named viking cruise journey, which travelled from ho chi minh city to kampong cham city. the woman took a flight from london straight to hanoi on 2 march then another flight to ho chi minh city with four other people, all british. arriving to phnom penh on 7 march via the cruise, it was reported that a vietnamese woman, who was seated next to the group on the plane from london, had carried the virus. the group of five were taken samples for testing. two of them refused, claiming that they were healthy and having no symptoms, until the cruise ship reached kampong cham on 9 march. following the event, the boat had been docked to provide samples to be tested from all 29 other passengers and 34 crew and were they placed under quarantine in a hotel somewhere in the city. the british patient was transferred to royal phnom penh hospital in phnom penh at her own request, adding that she had been conducted with coordination from who. on 12 march, another cases of two passengers of viking cruise journey were publicly confirmed at noon to have tested positive in a british man, 73 and his wife, 69, bringing up to five the confirmed cases at the time. due to their ages, the married couple were transferred to khmer-soviet friendship hospital in phnom penh. on 13 march, health officials confirmed two cases in phnom penh at 8 p.m. sharp, tallying to seven in total. a 49-year-old canadian and a 33-year-old belgian were in quarantine in khmer-soviet friendship hospital. the authorities were trying to locate those who had contacts with the patients. for the time being, another two visitors to tuol sleng genocide museum (a british and his friend, a canadian woman who worked in china) were suspected to have the symptoms and admitted to the said hospital. the british man, however, made an escape but was found later in kampot and hospitalized there. they were tested negative, assuming it was just a fever they had. nevertheless, their self-monitoring was needed for any changes. all cruise ships had since been prohibited to enter the country through k'am samnar checkpoint and any other checkpoints. 14–25 march - restrictions come into place in 14 march, moeys published an article, declaring that they would have to shut down all educational institutes in phnom penh until further notice, so did an ngo of where the belgian man had been working at. on 16 march, it was announced the closure of all educational institutions would be expanded nationwide. according to a ministry of health press release, cambodia announced a ban on all entries from italy, germany, spain, france and the united states, thereby all visas would be undeniably suspended. this policy would be held for thirty days, effective on 17 march. iran was added to the list of countries whose nationals were suspended entry to cambodia the following day, making a total of six. this would take effect on 18 march. on 15 march, an additional case of covid-19 was confirmed in phnom penh at 5 p.m. sharp on a french man, 35. with his wife and his four-month-old baby, the family flew from paris to singapore on 13 march. showing signs of fever, the authorities there took his samples for examination. to wait for the results, he wasn't allowed to go any further, however as a follow-up health checkup was presented, he was informed that he could carry on and the results would be available accordingly. the family were off, landed at phnom penh international airport on the morning of 14 march. the same day, the test came back positive. as of 15 march, the man was admitted to khmer-soviet friendship hospital while his wife and child, were staying at home of a relative under medical supervision. contacts with the man were found in the plane he boarded, in total of 24 passengers (including him and his family), and another two transporters who drove them home, to be examined. at 9 p.m., a report of 4 more cases were publicized, tallied up to twelve at the end of the day. it included a 4-month-old child of the french patient, a cambodian from france, and two khmer muslims, 35 and 39, who attended the tablighi jamaat mosque superspreader event near kuala lumpur, malaysia on 29 february. the ten mosque event attendees arrived at preah vihear (except one, who arrived at stung treng) on 3 march and up to 14 march, malaysia informed that it had found the infected from that gathering. another 8 people were continually in testing. within the span of two days on 17 march, the total confirmed cases leapt to 33. at half past 9 a.m., 12 cases were publicly stated. 11 khmer were found to be infected in various provinces. they were among 79 people returning from attending the tablighi jamaat mosque event in malaysia. one case further referred to a cambodian man who crossed the border from thailand in banteay meanchey. at 9:00 p.m., nine more cases were included, six more attendees in malaysia and three malaysians out of a group of five. two of the group were put under quarantine at a mosque in kep. the government mandated the extended closure to karaoke clubs and cinemas and forbid all religious gatherings and concerts. on 18 march, four more cases were detected: two malaysians in kampot and two more tabligh attendees in tboung khmum. in response to vietnam's unilaterally shutting down borders with cambodia without prior notice, the ministry of foreign affairs announced to suspend all border crossings with vietnam for a month-long period with the exception of diplomats and official passport holders. the measure would take effect on 20 march to avert inconvenience quarantine requirements for both nations. it was reported that thailand unilaterally closed cambodian-thai provincial border crossing, an ses-preah vihear. the government had established a national committee for combating the covid-19, it had duties to set national policy and strategy related to the fight against the covid-19 and control the impact of the virus on politics, economy, and society at national and international levels. the committee was obliged to direct the implementation of the strategic plan in preventing, containing and controlling the spread of the virus. on 19 march, ten more cases were detected: two wives of the infected men, two more tabligh attendees, and six malaysians. on 20 march, the ministry of health announced an additional 4 confirmed cases: a malaysian, and three cambodians, one of whom was infected from an attendee from malaysia and had no recent travel record overseas. on 21 march, two more cases were confirmed at 9 p.m., a 67-year-old and an 80-year-old frenchmen who arrived sihanoukville as tourists on 18 march. 37 people suspected to have contacts with were put under quarantine. on 22 march, having tested negative for a few times, a 65-year-old patient, british woman was reported that she fully recovered. she was said to be discharged later that day. after bilateral meetings between cambodia and thailand was resulted in agreement upon closing all borders starting from 23 march for 14 days. an exception was made at poipet-aranyaprathet border crossing where only heavy-duty trucks were allowed under strict conditions. at 10 p.m., more 29 people linked in the same tourist group of the cases confirmed the previous night, plus two cambodian guides were detected of the virus. the tourist group arrived cambodia on 11 march, visiting four provinces. as the tour ended in sihanoukville on 18 march, the group had stayed in independence hotel and was scheduled to depart from phnom penh on 21 march. on 23 march at 19:30, three new cases were recorded to include a mother of a 4-month-old child whom she and her infant had been placed under treatment at the kantha bopha children's hospital and other two cambodians. on 24 march, the health ministry registered four new cases, risen up to 91. a british couple and an american couple were passengers of viking cruise journey where the rest of them, 24 people were cleared and would depart for home from phnom penh via charter flights the next day. it also added that four patients, two from tboung khmum and another two from battambang, were all tested negative twice and ready to be discharged. on 25 march, cambodia recorded five new cases, two from the french tourist group and 3 cambodians with no recent foreign travels. four more patients, three from phnom penh and one from tboung khmum, had made complete recovery for that day. 174 chinese nationals had been quarantined in svay rieng upon their arrival from phnom penh by bus after two of them exhibited high temperatures. 26–31 march reportedly around 40 thousand workers from thailand had returned home. the local authorities were ordered to pay close attention and getting them informed on preventive measures and self-quarantine themselves for two weeks. on 26–28 march, two indonesians taking off from thailand and a cambodian family of four who went on a trip to france were added to confirmed cases. on 29–31 march, six cases were added to the total of 109 at the month's end. eleven patients from koh kong, banteay meanchey, phnom penh, kampong chhnang, battambang and siem reap was reported to have recovered from the disease. on 28 march, the government mandated to impose travel restrictions to cambodia, effective on 30 march. it stated that it would suspend visa exemption policy and issuance of tourist visa, e-visa and visa on arrival to all foreigners for a period of one month. any foreign individual entering the country must obtain a prior visa from cambodian missions abroad and provide a medical certificate, issued no more than 72 hours prior to arrival time and proof that he/she holds at least 50 thousand dollars for medical coverage. the authorities had traced 340 people who had indirect contacts with infected french tourist group in siem reap. on 30 march, all casinos were ordered to close temporarily starting from 1 april. april 2020 - cancellation of khmer new year between 1 and 9 april, cambodia counted 9 new cases, most notably on 9 april, a discharged patient was found to be relapsing two days after. moreover, 48 patients reportedly had recovered, mostly in sihanoukville, adding up to 68 in total. to ensure the nation's food security during the outbreak, rice exports would be halted from 6 april. a planned return of 150 cambodian workers from malaysia was turn down on 7 april by the government to tighten safety for its country. massage parlours and health spas were ordered nationwide to temporarily shut down from 7 april. khmer new year celebrations scheduled 13–16 april were cancelled, implementing no-holiday policy to all employees and officials. the government promised to provide us$70 a month to any laid-off worker whose factories were suspended operations. for those who go on holidays would have to take quarantine for two weeks without pay when they return to work. an act was issued on 8 april to prohibit travels across provinces and between districts