(1) Background: The teaching profession has become more challenging due to the increased use of information technology, which potentially increases psychological distress among teachers. This study aimed to determine the prevalence of depression, anxiety, and stress among school teachers in Malaysia during the period of the COVID-19 pandemic and its associated sociodemographic factors. (2) Methods: A cross-sectional study was conducted among primary and secondary school teachers in Malaysia. A validated DASS-21 questionnaire was used for mental health screening, and the study was conducted online during the pandemic period. (3) Results: The percentages of respondents with mild, moderate, severe, and extremely severe depression were 12%, 9.7%, 4.7%, and 3.1%, respectively. Those with mild, moderate, severe, and extremely severe anxiety accounted for 11.5%, 12.3%, 6.3%, and 6%, respectively. Those with mild, moderate, severe, and very severe stress accounted for 12.8%, 12%, 5.3%, and 2.5%, respectively. Perceived overworking was significantly greater during the pandemic compared to before the pandemic. Significant experience in teaching, and less perceived overworking before and during the pandemic were associated with better mental health. (4) Conclusions: Periodic mental health screening for teachers may be beneficial in preventing mental health disorders and improving the quality of student education. A full assessment and innovation of the curriculum and workload should be implemented.

Water-based ecosystems face serious public health concerns due to the microbial contamination of waters and the spread of waterborne diseases, as well as the dissemination of antibiotic-resistant microbes. Contaminants can be from natural sources, but they usually come from human activities like discharge of sewerage, farming, and industrial activities. Pathogenic microorganisms such as bacteria, viruses, protozoa, and fungi are capable of surviving in water bodies that have been contaminated, and pose severe health risks in combination with poor sanitation and inadequate water treatment facilities available in many communities. In addition to temperature, pH and other nutrients also impact the survival and distribution of microorganisms and managing risk and contamination becomes more difficult due to the increased number of variables. This review analyzes the various sources, categories of water-based microorganisms, their potential human health risks, and environmental factors affecting their persistence. Additionally, it discusses the range of detection and monitoring techniques which include traditional microbiological techniques, molecular analysis, and other advanced technologies. Also, the document offers microbial contamination prevention and control measures which include innovative treatment functions, legislative measures, and public health action frameworks. Mitigating microbial disease risks and controlling outbreaks of diseases require a multidisciplinary approach that treats detection as immediate, optimizing sewage treatment as well as global policy enforcement. Long-term water safety and public health safety requires early intervention focused on managing and reducing the use of antibiotics on pressurized water sources.