Language and cultural barriers among migrant workers hamper access to health risk information. This study aims to explore health risk communication structure and processes and identify the communication network of migrant workers during the COVID-19 pandemic in Thailand. This study used a parallel mixed-methods design combined with in-depth interviews and questionnaires for social network analysis from November 2020 to June 2021 in the headquarter district of Samut Sakhon, Ranong, and Phuket provinces. We conducted purposive sampling of representatives from public and non-public organisations and local communities. Thirty-six key informants participated in in-depth interviews, and fifty-six respondents completed the questionnaire for social network analysis. Although health risk communication included various activities, there was no formal governing body responsible for health risk communication among migrants, and monitoring and evaluation of communication process were not well-implemented. The health risk communication network was centralised, especially in the rural area; however, migrant health volunteers (MHVs) and local media were key sources of information for most migrants in communities. Overall, a governing body led by the government with intersectional collaboration and a health risk communication process should be promoted while considering migrants’ characteristics and concerns. The health risk communication network should identify key communicators such as MHVs and local media. This can be an effective strategy to fill the gap of information dependency.

Coronavirus disease 2019 (COVID-19) is a newly emerging infectious disease, and risk communication is one of several public health emergency responses. During the pandemic, many migrant workers in Thailand experienced barriers that hamper access to health information. This study aims to explore factors related to the outcomes of health risk communication, including awareness of public health measures and preventive practices. We conducted a cross-sectional survey on migrants between January and April 2021 using cluster sampling in Phuket, Ranong, and Samut Sakhon. In the descriptive analysis, we presented the median, proportion, and ratio, while in the inferential analysis, we employed a logistic regression with robust standard errors. Although a total of 303 participants were initially included in this study, the final number was narrowed down to 288 samples due to insufficient information required for the analysis. Frequent reception of health information and primary school education showed a statistically significant association with preventive practices. Middle-aged migrant workers demonstrated a significantly lower level of preventive practices than younger migrant workers. A longer stay in Thailand was significantly related to a lower degree of awareness toward public health measures. Thus, it is necessary to promote the accessibility of health information among migrant workers in Thailand, especially those who have lived in Thailand for more than eight years, are older, and have no formal education.

: Paragonimiasis is a food-born zoonotic parasitosis caused by Paragonimus spp. Six cases of reemerging paragonimiasis within the Karan hill-tribe near the Thai–Myanmar border were evaluated to review clinical manifestations, predisposing factors, and treatment regimens. All patients tested positive for paragonimiasis eggs and presented with an array of symptoms, including chronic cough, hemoptysis, peripheral eosinophilia, and thoracic radiograph abnormalities. All fully recovered after a 2- to 5-day course of 75 to 80 mg/kg/day praziquantel. We conclude that paragonimiasis should be considered during differential diagnoses to promote early treatment and to prevent misdiagnosis of reemerging or sporadic cases. This applies particularly to endemic regions and high-risk groups known to habitually consume raw or undercooked intermediate or paratenic hosts.

On 23 Mar 2020, the Situation Awareness Team of the Emergency Operations Center, Department of Disease Control, was notified that a 44-year-old Thai male, who was infected with coronavirus disease 2019 (COVID-19), had died in a private hospital in Bangkok, and there was a suspicion that some healthcare workers were infected with SARS-CoV-2 following his death. A descriptive cross-sectional study was conducted. We reviewed medical records of the index case, interviewed relatives of the index case, and performed contact tracing using a standard questionnaire. We could identify 206 high-risk contacts. Twenty out of 206 high-risk contacts were then found to be infected with SARS-CoV-2. Fifteen of them were healthcare workers, two of them were current inpatients, and the other three were household contacts. The likely cause of disease spreading was the missed diagnosis of COVID-19 as the index case did not present with upper respiratory tract symptoms at the first visit to the hospital. Meal sharing among healthcare workers and sharing of a portable chest X-ray machine without proper protective equipment potentially served as other causes of COVID-19 spreading.

On 29 Jan 2020, the Operation team was notified by the Emergency Operation Center that there was a Chinese man infected with SARS-CoV-2 admitted in a private hospital in Bangkok. Division of Epidemiology, Office of Disease Prevention and Control 1, 11, and Institute for Urban Disease Control and Prevention jointly deployed to conduct an investigation. Descriptive study was conducted by interviewing the index case about his symptoms, travel history, and reviewing medical records. Contact tracing was done. Close contacts of the index case were classified to high-risk and low-risk contacts. Laboratory testing for SARS-CoV-2 was done among high-risk contacts and symptomatic low-risk contacts. The index case was a 30-year-old Chinese. He had worked in Guangxi province, China. He spent 2 days in Wuhan city and 2 days in Guangzhou city before traveling to Thailand. He developed fever, cough, and sore throat after being in Thailand for 3 days. According to the median incubation period of COVID-19, he could be infected from China. Since he started traveling from China, he wore a surgical mask all the time. From contact tracing, the high-risk contacts that could be followed, none of them had laboratory test positive. Therefore, this strategy of wearing a face mask should be encouraged nationwide especially in case that physical distancing could not be done.