Seroprevalence of SARS-CoV-2 Antibodies among Vaccinated and Non-Vaccinated Adults in the West Bank: Results of a Repeated Cross-Sectional Study.

Seroprevalence studies provide an accurate measure of SARS-CoV-2 spread at a population level and the number of undiagnosed individuals. Repeated cross-sectional sero-studies are encouraged to monitor the spread of the virus. The aim of this study is to assess the seroprevalence rate among a random sample of Palestinians residing in the West Bank region of Palestine, especially among those who were not vaccinated and not diagnosed. The study was able to assess the prevalence of asymptomatic cases among the Palestinian adult population. The study also focused on measuring the percentage of adult Palestinians who accepted to get vaccinated across gender and age groups. Methods: This second round cross-sectional study involved 1451 participants, who agreed to be interviewed and answer the questionnaire, where 910 of them agreed to participate in the sero-study and donate a blood sample to be tested for antibodies. The sample was randomly selected from the adult population, 18 years or older, living in the West Bank region of Palestine. Serological tests for 910 adequate serum samples were performed using immunoassays for the detection of antibodies against SARS-CoV-2. Sociodemographic information and medical history data were collected. Results: Study findings indicate that as of October 2021, there was a seroprevalence rate of 75.9% (30% due to infection with COVID-19 virus and 45.9% due to vaccination) with 95% CI (73.1−78.7). The results indicate that the prevalence of antibodies among those who are unvaccinated and undiagnosed was 45.2% with 95% CI (39.9−50.5%). The average age of participants was 37.6 years old. A total of 49.2% were females, and 50.8% were males. In relation to COVID-19, 13.6% of respondents reported getting infected by COVID-19 with statistically significant difference (p-value = 0.001) between males (10.7%) and females (16.5%). In terms of vaccination, 52.8% of respondents reported getting vaccinated with an important difference between males (64.3%) and females (40.9%), (p-value < 0.01). Conclusions: Our findings reveal a drastic rise in seroprevalence of SARS-CoV-2 antibodies due to infection and vaccination. This information is useful for assessing the degree of herd immunity among the adult population and provides better understanding of the pandemic. Population-based seroprevalence studies should be conducted periodically to monitor the SARS-CoV-2 seroprevalence in Palestine and inform policy makers about the efficacy of the surveillance system and the public compliance with vaccination policies especially among females.

Seroprevalence of SARS-CoV-2 in the West Bank region of Palestine: a cross-sectional seroepidemiological study.

OBJECTIVES: Seroprevalence rates are important indicators to the epidemiology of COVID-19 and the extent of the pandemic given the existence of asymptomatic cases. The purpose of this study is to assess the seroprevalence rate in the Palestinian population residing in the West Bank. SETTING: The study involved 1355 participants from 11 governorates, including 112 localities in the West Bank and 1136 individuals visiting Palestinian medical laboratories. PARTICIPANTS: Blood samples were collected between 15th June 2020 and 30th June 2020 from 1355 individuals from randomly selected households in the West Bank, in addition to 1136 individuals visiting Palestinian medical laboratories between the 1st May 2020 and 9th July 2020 for a routine check-up. PRIMARY AND SECONDARY OUTCOME MEASURES: Out of the 2491 blood samples collected, serological tests for 2455 adequate serum samples were done using an immunoassay for qualitative detection of antibodies against SARS-CoV-2. Seroprevalence was estimated as the proportion of individuals who had a positive result in the total SARS-CoV-2 antibodies in the immunoassay. RESULTS: The random sample of Palestinians living in the West Bank yielded 0% seroprevalence with 95% and an adjusted CI (0% to 0.0043%), while the lab referral samples yielded an estimated seroprevalence of 0.354% with 95% and an adjusted CI (0.001325% to 0.011566%). CONCLUSIONS: Our results indicate that as of mid-June 2020, seroprevalence in Palestine persists low and is inadequate to provide herd immunity, emphasising the need to maintain health measures to keep the outbreak under control. Population-based seroprevalence studies are to be conducted periodically to monitor the SARS-CoV-2 seroprevalence in Palestine and inform policymakers about the efficacy of their surveillance system.

Knowledge, attitudes and practices (KAP) towards COVID-19 among Palestinians during the COVID-19 outbreak: A cross-sectional survey.

Coronavirus disease 2019 (COVID-19) is a highly contagious illness that spreads rapidly through human-to-human transmission. On March 5, the government of Palestine declared a state of emergency in order to curb the spread of the virus, a declaration that it extended for a fifth time on July 5th. The degree to which a population complies with corresponding safety measures is surely affected by the people's knowledge, attitudes and practices (KAP) towards the disease. To explore this hypothesis, we gathered data from 1,731 Palestinians between April 19thand May 1st, 2020 through a KAP questionnaire. The participant pool represented a stratified sample of Palestinians living across a number of governorates in the Gaza Strip and the West Bank, with 36.5% from Gaza and (63.5%) from the West Bank. Gender was almost equally distributed within the sample with (51%) men respondents and (49%) women respondent. The questionnaire included 17 questions about participants' knowledge and awareness of COVID-19, 17 questions regarding the safety measures they had taken in the wake of the outbreak and 3 questions asking them to assess the efficacy of the government's response to the pandemic. Our data shows that 79% of the respondents have good awareness about transmission of the virus, 55.6% were knowledgeable of the symptoms exhibited by an infected individual, 81% were aware of the preventative measures and 82% demonstrated awareness of the risk groups. Most participants complied with preventative measures (77%) and 62% the study participants agreed that stricter measures have to be enforced by the government to limit the spread of the virus. Our study revealed that younger participants and people with higher educational level demonstrated more awareness of the virus. Also, Women were reported to be more aware of preventative measures and to have complied more with good practices. We report that residents of the West Bank have complied more with the right practices when compared to residents of Gaza. Based on the results of this study, we conclude that health education programs aimed at improving the public's understanding of COVID-19 are important in helping the population maintain appropriate practices and should be target people with lower educational level, and that findings such as those discussed in this report may provide valuable feedback to lawmakers working to stop the spread of the virus.

Prevalence and sociodemographic correlates of stunting, underweight, and overweight among Palestinian school adolescents (13-15 years) in two major governorates in the West Bank.

BACKGROUND: There is little information about height and weight status of Palestinian adolescents. The objective of this paper was to assess the prevalence of stunting, underweight, and overweight/obesity among Palestinian school adolescents (13-15 years) and associated sociodemographic factors in 2 major governorates in the West Bank. METHODS: A Cross-sectional survey was conducted in 2005 comprising 1942 students in 65 schools in Ramallah and Hebron governorates. Data was collected through self-administered questionnaires from students and parents. Weights and heights were measured. Overweight and obesity were assessed using the 2000 Centers for Disease Control and Prevention (CDC) reference and the International Obesity Task Force (IOTF) criteria. Stunting and underweight were assessed using the 2000 CDC reference. RESULTS: Overweight/obesity was more prevalent in Ramallah than in Hebron and affected more girls than boys. Using the 2000 CDC reference, the prevalence of overweight and obesity in Ramallah among boys was 9.6% and 8.2%, respectively versus 15.6% and 6.0% among girls (P < 0.01). In Hebron, the corresponding figures were 8.5% and 4.9% for boys and 13.5% and 3.4% for girls (P < 0.01). Using the IOTF criteria, the prevalence of overweight and obesity among boys in Ramallah was 13.3% and 5.2%, respectively versus 18.9% and 3.3% for girls. The prevalence of overweight and obesity among boys in Hebron was 10.9% and 2.2%, respectively versus 14.9% and 2.0% for girls. Overweight/obesity was associated with high standard of living (STL) among boys and with the onset of puberty among girls. More boys were underweight than girls, and the prevalence was higher in Hebron (12.9% and 6.0% in boys and girls, respectively (P < 0.01)) than in Ramallah (9.7% and 3.1% in boys and girls, respectively (p < 0.01)). The prevalence of stunting was similar in both governorates, and was higher among boys (9.2% and 9.4% in Ramallah and Hebron, respectively) than among girls (5.9% and 4.2% in Ramallah and Hebron, respectively). Stunting was negatively associated with father's education among boys and with urban residence, medium STL and onset of puberty among girls. CONCLUSION: Under- and overnutrition co-exist among Palestinian adolescents, with differences between sexes. Region, residence, STL, and onset of puberty were associated factors.

Imprints on the consciousness: the impact on Palestinian civilians of the Israeli Army invasion of West Bank towns.

BACKGROUND: The dehumanizing aspects of conflict and war are increasingly recognized as serious health and human rights concerns. This paper examines the impact on civilians of the 29 March 2002 Israeli Army invasion and subsequent curfews lasting up to 45 consecutive days, of five West Bank towns. METHODS: Using focus groups, a 10-item scale was devised to measure the effects of the invasion's impact on the social and health-related quality of life. The scale is an aggregate of three constructs measuring housing, financial, and health-related issues. A survey composed of demographic questions and the 10-item social/health scale was administered to a stratified random sample of inhabitants of the five towns. RESULTS: the invasion caused extensive destruction, food and cash shortages, internal displacement of civilians, psychological distress, and serious interruptions of basic services, including crucial health services. Overall, Jenin experienced the most deleterious effects. Using the subscales, Jenin experienced the highest overall housing damage, Bethlehem the most financial difficulties, and Ramallah the most health-related hardships. CONCLUSIONS: civilians inevitably suffer during conflict and war from destruction of the community infrastructure and from personal stress due to disruption of services and the non-fulfilment of basic human needs. In contradistinction to standard damage assessments that focus on collective physical damage, this scale provides richer information on the needs of civilians in conflict-torn areas, and can assist aid workers in the efficient deployment of resources.