Introduction

Globally, the coronavirus pandemic is a leading cause of sickness and death [1]. With a case-fatality ratio (CFR) of 0.91%, the global cumulative incidence of COVID-19 as of December 2, 2023, was 772,143,014 reported cases and 7,003,610 associated deaths. In the meantime, 351,822 related deaths (CFR 1.5%) and 23,406,897 cases (representing 3.03% of the worldwide total) have been reported from the Eastern Mediterranean Region (EMR) [2]. Additionally, the COVID-19 pandemic had a major effect on pregnant women’s mortality rates in 2021 [3]. According to data, the number of maternal deaths in the United States increased by 40% in 2021 to over 1,200, up from 861 in 2020 and 754 in 2019. This spike is partly linked to COVID-19 difficulties that made prenatal patients’ preexisting health issues worse [4].

With a population of about 10 million, Jordan has one of the highest per capita rates of COVID-19 infection worldwide. In 2021, there were over 500,000 cases and over 8,000 fatal cases reported [5]. Thus, vaccination is an important technique for limiting infections and reducing illness severity in the COVID-19 epidemic [6]. Early studies revealed that pregnant women with COVID-19 are more likely to experience maternal complications such as antepartum hospitalization, intensive care unit admission, mechanical ventilation, and death than age-matched non-pregnant women, along with obstetric problems such as preterm birth and fetal death [7–10]. So, vaccination against infectious illnesses is a very successful public health approach that has been shown to considerably decrease infection-related worldwide morbidity and mortality [11].

Attitudes and knowledge about COVID-19 vaccination vary significantly across different populations and regions, with several factors influencing perceptions and acceptance rates. for instance, in a study performed by Chisale, Kambalame [12] in Malawi, 95.7% of participants knew about the COVID-19 vaccine, indicating that most participants had a good understanding of vaccination. Although just 38.7% had received the vaccination, roughly 68.4% of respondents thought it was successful. Besides, A community-based study conducted in Yemen by Hassan, Al-Aghbari [13] found differing opinions about the COVID-19 vaccination. Although 92% of participants were willing to adhere to COVID-19 requirements, roughly 61% were reluctant to get the vaccination because of mistrust, rumors, and worries about its safety.

Although there were still substantial obstacles to uptake, healthcare professionals in northeastern Ethiopia had generally positive knowledge and attitudes regarding COVID-19 immunization. Several variables, including sociodemographic traits, knowledge levels, and attitudes toward the vaccine, affected how likely they were to get vaccinated [14].

Despite the advantages of vaccination in preventing maternal and fetal problems, there were many concerns in the medical community regarding vaccine safety for pregnant women, and this has put obstetricians in a challenging situation when it comes to advising their pregnant patients on whether to obtain the vaccine [15]. The acceptance of COVID-19 vaccines among pregnant and lactating women in refugee camps in Jordan is a critical public health issue. This population is particularly vulnerable due to several factors, including limited access to healthcare, lower socioeconomic status, and potential exposure to misinformation. Ensuring high vaccine uptake in this group is essential for protecting both maternal and child health and for controlling the spread of COVID-19 within refugee camps. However, pregnant and lactating women had a greater acceptance rate than the general public, according to studies done in India, China, Qatar, and South American nations [16–18]. In contrast, acceptance rates were low in studies performed in North America, Europe, Russia, and Australia [19]. Therefore, numerous variables influence the degree of uptake of COVID-19 vaccines such as demographical factors of age, sex, and geographic location [14]. Socio-economic status such as income level and employment [12]. Besides, educational attainment and awareness campaigns are effective in public health [20]. By addressing the above-mentioned variables health authorities can improve COVID-19 vaccine uptake among pregnant and lactating women in refugee camps, thereby enhancing maternal and child health outcomes and contributing to the broader effort to control the pandemic. In this study, the associations between COVID-19 vaccine knowledge, attitudes, and acceptance were investigated.

Material and methods

Measurements

A self-administered questionnaire consisted of four main parts employed for primary data gathering. The first portion covers demographic data, including variables such as age, respondent’s condition, pregnancy trimester, postpartum period, mode of delivery, mode of feeding infant, education level, employment status, number of children, chronic disease condition, and flu vaccination. The subsequent parts provided details about the study variables, including the knowledge, attitudes, and acceptance towered the COVID-19 Vaccine, in the second, third, and fourth sections, respectively. To assess the knowledge of COVID-19 vaccination there were five items in the knowledge part, and there were three possible answers: "Yes," "No", and "Don’t know." The response "yes" was scored as 3, and the responses "no" as 2, and "don’t know" as 1. If the mean score is between 1.00 and 1.66 it is ranked as low knowledge, between 1.67 and 2.33it is ranked as moderate knowledge, and if it is between 2.34 and 3, this is scored as high level of knowledge.

The attitudes section in this study consisted of 24 items, all of which were scaled using a Likert scale from 1 to 5. Where 1 = strongly disagree, 2 = disagree, 3 = neutral, 4 = agreed, and 5 = strongly agree. Where the mean from 1 to 2.99 is considered a general negative attitude, and above 3 is a general positive attitude.

For the acceptance of COVID-19 vaccination, this section included three items with three possible answers (yes/no/uncertain), where yes was coded as 3, no as 2, and uncertain as 1. If the mean score was between 1.00–1.66 it is considered a low degree of agreement, between 1.67 and 2.33 it is considered moderate, and between 2.34 and 3 it is considered a high acceptance level.

Two approaches have been used to measure the study tool’s reliability, Cronbach’s alpha was used for Likert scale answers while Kuder-Richardson ver 20 was used for binary scale answers and the result in Table 1 shows that all study tools’ have a reliability coefficient above (α = 0.70) which indicates that the tools have a reasonable reliability index.

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Table 1. Reliability analysis.

https://doi.org/10.1371/journal.pone.0305314.t001

Results

Response rate & demographic characteristics of respondents

Out of 450 respondents reached, 412 agreed to participate. While 17 responses were excluded from data analysis, in which (n = 10) respondents under the age of 18, (n = 5) neither pregnant nor lactating, and (n = 2) were Jordanian clinic staff, another (n = 10) responses were excluded because the participant withdrew from the study. A total of 385 with a response rate of 91.6% questionnaires were finally included in the analysis.

The descriptive data of the respondents’ demographics are displayed in Table 2 section 1. All participants were Syrian females, 43.1% were born between 1990 and 1999, and 23.9% were younger than 22 years old. Around 77.7% of participants had a primary/secondary school education level, and 86.2% were unemployed. Of the responders, 35.8% were nursing babies and 64.2% were pregnant. A little over 88.3% are parents, and 93.2% are free of chronic illnesses. Of those who received the COVID-19 vaccine, almost 89.9% received both doses, while 84.9% did not receive the flu shot.

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Table 2. Descriptive analysis of the study variables (n = 385).

https://doi.org/10.1371/journal.pone.0305314.t002

The relationship between knowledge and COVID-19 vaccine acceptance among pregnant and lactating Syrian women

Pearson product-moment correlation was applied to explore the correlation between knowledge and COVID-19 vaccine acceptance since the data was normally distributed. The results have shown there is a significant moderate positive correlation (r = .357, p < .001, n = 385) as the person’s knowledge score increases, the COVID-19 vaccine acceptance increases as well. Additionally, the results revealed that there is a significant moderate positive association between attitude and COVID-19 vaccine acceptance (r = .468, p < .001, n = 385) revealing as their attitude increases, their acceptance of the vaccine will increase as well Table 3.

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Table 3. Parson correlation test (knowledge and acceptance; attitudes and acceptance).

https://doi.org/10.1371/journal.pone.0305314.t003

Discussion

Based on our findings, the COVID-19 vaccine acceptance level was 86.5%, these results were reinforced by a similar recent study conducted in the Zataari refugee camp in Jordan, which documented that the COVID-19 vaccine acceptance among Syrian refugees was 89.6%, which is higher than the local Jordanian population [23]. Moreover, a cross-sectional study done in Eastern Ethiopia at the beginning of 2021 also detected that the acceptance rate was 62.2% [24]. Besides, a similar study was performed to define the level of acceptance of COVID-19 vaccination and discover the elements that impact vaccine acceptance among pregnant women in Saudi Arabia; among around 5000 participants, the vaccine acceptance rate was 68% [25]. However, another study performed by Takahashi, Ishitsuka [26] observed vaccine hesitancy in 51.1% of pregnant women. Also, pregnant respondents to a study done in 2021 by Sutton, D’Alton [27] had the lowest proportion of vaccine acceptance (44.3%; P<0.001), and lactating participants were the second most likelihood of receiving the vaccination (55.2%).

In this study, the average score of pregnant women toward vaccination was (M = 4.69, SD = 1.57), revealing poor knowledge. This result was consistent with a study conducted among seven low and middle-income countries that found poor knowledge about the effectiveness and safety of vaccination [28].

By explaining and discussing the results of our current study in light of previous studies, it was found that few of the previous studies were incompatible with our results [29]. However, it is essential to take into consideration many factors that might contribute to these findings. For instance, a study was done almost a year before, and in the COVID-19 pandemic, timing is critical. As time passes, more is known about both the virus and the vaccines, which may contribute to higher vaccine acceptance. Also, more vaccine safety data is published, which comforts the population and encourages them to receive the vaccine. Thus, it is essential to note that these factors might contribute to the variation in recent studies’ findings in addition to the respondents’ demographics and study setting [26].

The authors also discuss the efforts made by official parties in the study setting to raise the community’s awareness of the COVID-19 vaccine and its significance in ending the epidemic. In such crowded places, efforts need to be condensed to stop the spread of infections as soon as possible. Hence, the UNHCR, along with the Jordanian government and other partners, directed their measures toward increasing COVID-19 vaccine acceptance and uptake [21]. Also, in my opinion, the Jordanian defense law and the rules compelled by the UNHCR and SRAD in refugee camps to stop the spread of the pandemic played a vital part in increasing the COVID-19 vaccine’s acceptance and uptake. As most of the official paperwork for refugees, like work permits and volunteering opportunities, required the applicant to have a vaccination certificate, this led to higher vaccine uptake rates. This being said vaccine acceptance has an essential role in ending the COVID-19 pandemic and reaching herd immunity. Especially in vulnerable communities that face more alarming outcomes of the pandemic.

Our study detected a relationship between knowledge and COVID-19 vaccine acceptance among pregnant and lactating Syrian women. Pregnant women may be more receptive to vaccination against COVID-19 if they have access to trustworthy information from trained healthcare professionals on the existing level of knowledge about safety, efficacy, and the recommendations of scientific sources. Rather than emphasizing the danger of the illness when prescribing a vaccination, it may be more effective for community health campaigns to emphasize the preventive function and protection of the vaccine between pregnant and nursing women [30]. This finding is supported by another research was conducted in 2022, they found that respondents with a high level of knowledge regarding COVID-19 inclined to vaccinate more than respondents with a low level of knowledge. But their study was done in another refugee camp, included both sexes and wasn’t targeted to pregnant and lactating women only [23]. Furthermore, numerous studies have shown that in the general population, higher levels of education correlate with increased acceptance of COVID-19 vaccinations [31,32]. Others suggested that adequate knowledge is essential for the formation of preventative knowledge and positive attitudes and actions, while a lack of knowledge increases the risk of infection. But fewer studies in the literature had a full sample of pregnant and lactating refugee women, and our finding may be due to the low socio-economic level of this vulnerable population [33,34].

On the other hand, this finding is incompatible with research done in Western China, which indicates that COVID-19 immunization acceptability is greater among pregnant women with lower levels of education. While pregnant women with a higher degree of education exhibited more vaccination refusal, which was correlated with their awareness of the COVID-19 vaccine, they may have encountered a greater amount of adverse information related to the COVID-19 vaccination, given the fact that 77.7% of our study participants had a primary or secondary school education level [35]. Also, it was found that although their study’s respondents had inadequate knowledge towered specific facts about the COVID-19 vaccine, most of them approved that it was important to be vaccinated for COVID-19 and were conscious that pregnant and breastfeeding women are eligible for vaccination [17].

Our study found a relationship between attitude and COVID-19 vaccine acceptance among pregnant and lactating Syrian women, this finding is supported by the studies done in Jordan, which found a positive attitude among participants toward the COVID-19 vaccine [23,36]. Besides, a study done in Malta discovered a strong association among participants’ beliefs that vaccination will aid save people against COVID-19 and their readiness to obtain the vaccine, as well as a significant association between preparedness to have the vaccine and giving importance to the thoughts of family and friends and with the significance given to the guidance of health professionals [37]. Other studies found similar findings in southwest Ethiopia, where the attitudes of pregnant women toward the COVID-19 vaccine were assessed. The findings of this study revealed that more than half, 66.7%, of pregnant women had a positive attitude toward the vaccine. In Egypt, 74.9% of research participants had a positive attitude; nonetheless, this percentage was greater than in studies done in communities in southern Ethiopia (54.5%) and northern Ethiopia (57.5%) [38]. This may be attributed to the fact that expecting women may strictly adhere to the counseling/advice of healthcare professionals during prenatal care visits on COVID-19 preventative measures [38–41]. In the last, it was shown that pregnant women who had a positive attitude towards the COVID-19 vaccine were 2.1 times more likely (AOR: 2.128, 95% CI: 1.348, 3.360) to express an intention to get the COVID-19 vaccination, as opposed to those with a negative attitude [42].

Conclusion

The results of the study indicate that immigrant women’s acceptance and their awareness of the COVID-19 vaccine are very positively correlated. Furthermore, a positive association was discovered between women’s perceptions of the COVID-19 vaccine and their level of acceptance. Therefore, to put a stop to the pandemic and establish herd immunity, decision-makers must concentrate their efforts on increasing public knowledge and awareness of the COVID-19 vaccine. This holds particular significance in susceptible groups that are most impacted by the pandemic’s consequences.

Supporting information