COVID-19 lockdown introduces human mobility pattern changes for both Guangdong-Hong Kong-Macao greater bay area and the San Francisco bay area

Zhong, Leiyang; Zhou, Ying; Gao, Song; Yu, Zou; Ma, Zhiliang; Li, Xiaoming; Yue, Yang

doi:10.1016/j.jag.2022.102848

Cited by 4 publications

(2 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to the statistical yearbook of Macao in year 2022, apart from the over 80% of tourists from Chinese mainland, ones from Hongkong, Taiwan and abroad make up of the rest parts of visitors, and their average sojourn time is usually less than one week [ 4 ]. Although Macao government restricted entry and exit at the border during the outbreak and kept strict records of the fever status of each person, the daily basic population motility and import/export trade continued to pose a challenge to the tracking and control of the epidemic [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

The effects of Chinese proprietary medicine and vaccination on patients with COVID-19: a retrospective study in Macao

Mo,

Zhou,

Lao

et al. 2024

Chin Med

View full text Add to dashboard Cite

Background COVID-19 is continuing to ravage globally and has resulted in a huge health and financial burden. Chinese proprietary medicines, such as Lianhua Qingwen (LHQW) and Huoxiang Zhengqi (HXZQ) capsules, have been recommended for non-high-risk patients with COVID-19 in China. Based on this, we described the baseline information, using status of LHQW and HXZQ capsules and inoculation history of quarantined patients in the second half of 2022 in Macao. Additionally, we analyzed the underlying association among medicines administration, vaccination and COVID-19 indices, in order to explore novel clues for the regular control and prevention of local epidemic situation in the future. Methods A total of 976 patients in Macao quarantine hotels from June to August 2022 were included in the present study, of which, 857 subjects were followed-up for prognosis evaluation. During quarantine, the baseline demographic information, including sex, age, BMI, occupation and personal habits were collected. Additionally, the inoculation history, medicine employment status and cycle threshold (Ct) values were also reported. We interviewed the patients for collection of their symptoms at the beginning and end of quarantine, as well as prognostic ones. Basic statistical description of baseline information, vaccination history and medication were displayed. Chi-squared test or with continuous correction test was employed for comparison of dichotomous data between two or multiple groups. Binary logistic regression was applied to reveal the correlation between potential risk factors and Ct values or prognosis symptoms. We also used Cox regression model to identify the effect of different types of vaccine products on Ct value altering rate. Results Patients who were female (52.0%), engaged in service industry (31.8%), from Macao native (65.8%), never took physical exercises (33.6%) and preferred irritated diet (59.5%) enjoyed more dominant proportions. Over 80% of participants were inoculated and 74.6% of them chose inactivated COVID-19 vaccine produced by China National Biotech Group (CNBG). Participants used LHQW capsules accounted for 92.1% and the duration of medicating lasted for one to two weeks. All of the reported symptoms were significantly ameliorated after quarantine and the duration of quarantine was concentrated on 21 days. People with different age, sex, occupation and region had different choices of HXZQ administration and vaccination. Additionally, middle dose (4–5 boxes) of LHQW capsules exhibited evidently negative association with positive Ct values (adjusted, − 0.037 ± 0.19, p = 0.04). Two doses of CNBG and one dose of mRNA vaccine had obvious protective effect on reducing Ct positive rate (p = 0.041). Meanwhile, symptoms after quarantine were significantly positive correlated with those in prognosis (adjusted, 1.38 ± 0.18, p < 0.0001). Conclusion Our study found that the administration of LHQW capsules was beneficial for Ct value turning negative, meanwhile, certain mixed inoculation may be the promoting factor to reduce the positive rate of Ct value. These findings provide data basis for the Chinese proprietary medicine treatment and mixed vaccination applying for prevention and control of local COVID-19 epidemic in the future.

show abstract

Section: Introductionmentioning

confidence: 99%

The effects of Chinese proprietary medicine and vaccination on patients with COVID-19: a retrospective study in Macao

Mo,

Zhou,

Lao

et al. 2024

Chin Med

View full text Add to dashboard Cite

show abstract

“…However, these indices have low spatial granularity (usually on a city scale) and only include movements within and between large cities or large administrative regions (provinces or states), ignoring migration between cities and rural areas. In addition, previous studies (Huang et al, 2021;Terroso-Saenz et al, 2022;Zhang & Cheng, 2022;Zhong et al, 2022) have mainly focused on short-term trips, such as daily mobility or tourism, whereas long-term migrations, i.e., home relocation, have not received scant attention. Mobile phone data is another important source of tracking migration but is very expensive and difficult to access (Bonnetain et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Understanding internal migration in the UK before and during the COVID-19 pandemic using twitter data

et al. 2022

View full text Add to dashboard Cite

The COVID-19 pandemic has greatly affected internal migration patterns and may last beyond the pandemic. It raises the need to monitor the migration in an economical, effective and timely way. Benefitting from the advancement of geolocation data collection techniques, we used near real-time and fine-grained Twitter data to monitor migration patterns during the COVID-19 pandemic, dated from January 2019 to December 2021. Based on geocoding and estimating home locations, we proposed five indices depicting migration patterns, which are demonstrated by applying an empirical study at national and local authority scales to the UK. Our findings point to complex social processes unfolding differently over space and time. In particular, the pandemic and lockdown policies significantly reduced the rate of migration. Furthermore, we found a trend of people moving out of large cities to the nearby rural areas, and also conjunctive cities if there is one, before and during the peak of the pandemic. The trend of moving to rural areas became more significant in 2020 and most people who moved out had not returned by the end of 2021, although large cities recovered more quickly than other regions. Our results of monthly migration matrixes are validated to be consistent with official migration flow data released by the Office for National Statistics, but have finer temporal granularity and can be updated more frequently. This study demonstrates that Twitter data is highly valuable for migration trend analysis despite the biases in population representation.

show abstract

Unraveling changes of spending behavior in pandemic cities: A nationwide study of South Korea

Sun,

Xu,

Zhong

et al. 2024

Computers, Environment and Urban Systems

View full text Add to dashboard Cite

COVID-19 lockdown introduces human mobility pattern changes for both Guangdong-Hong Kong-Macao greater bay area and the San Francisco bay area

Cited by 4 publications

References 50 publications

The effects of Chinese proprietary medicine and vaccination on patients with COVID-19: a retrospective study in Macao

The effects of Chinese proprietary medicine and vaccination on patients with COVID-19: a retrospective study in Macao

Understanding internal migration in the UK before and during the COVID-19 pandemic using twitter data

Unraveling changes of spending behavior in pandemic cities: A nationwide study of South Korea

Contact Info

Product

Resources

About