Scrub typhus is a neglected disease and one of the most serious health problems in the Asia-Pacific region. The disease is caused by an obligate intracellular bacteria Orientia tsutsugamushi, which is transmitted by chigger bites or larval mite bites. Scrub typhus is a threat to billions of people worldwide causing different health complications and acute encephalitis in infants and growing children. The disease causes multiple organ failure and mortality rates may reach up to 70% due to a lack of appropriate healthcare. Currently available genome and proteome databases, and bioinformatics methods are valuable tools to develop novel therapeutics to curb the pathogen. This review discusses the state-of-the-art of information about Orientia tsutsugamushi-mediated scrub typhus and delineates the role of omics technologies to develop drugs against the pathogen. The role of proteome-wide in silico approaches for the identification of therapeutic targets is also highlighted.

Objective: To investigate the knowledge, attitude, and practice levels and perceived barriers towards healthy living to prevent hypertension among young adults in Malaysia. Methods: Adults aged 18-25 years reside in Malaysia were recruited via convenience sampling. Sociodemographic characteristics, medical knowledge on hypertension (K1), knowledge (K), attitude (A), practice (P) and perceived barriers in practising healthy living to prevent hypertension were assessed. Average scores were categorised into good (80%-100%), upper-moderate (70%-79%), lower-moderate (60%-69%) and poor (<60%). Multivariate analysis was performed to test the difference and relationship of variables. Pearson correlation test was used to test the association of two continuous variables. Results: A total of 1 218 respondents participated in this survey. The mean score of K1 was 54.1%, while the knowledge, attitude, and practice towards healthy living were 82.7%, 78.2%and 68.5% respectively. The prevalence of high salt intake, high fat intakes, low fibre intake, sedentary lifestyle and lack of annual health screening was 83.2%, 81.4%, 70.3%, and 73.2%, respectively. Abnormal BMI was associated with low P scores, while lower socio-economic status, unawareness of self-blood pressure reading and those without family history of hypertension were associated with lower scores in K1, K, A, and P. K1, K, A and P are significantly inter-related. The main perceived barriers included self-proclaimed good fit status, frequent consumption of out-of-home food, and addiction to high salt/fat food. Conclusions: The national strategies for health management should be prioritized in reducing salt and fat, promoting annual health screening, physical activities and fibre intake in this age group.

Objective: To examine the effect of the COVID-19 virus, especially the Omicron variant, on hematological parameters of hospitalized pediatric patients during the COVID-19 pandemic. Methods: Medical records of pediatric COVID-19 patients hospitalized at Kartal Dr. Lütfi Kirdar City Hospital in Istanbul, Turkey, between March 2020 and May 2022 were retrospectively reviewed to analyze data regarding demographics, SARS-CoV-2 infection polymerase chain reaction (PCR) test results, reverse-transcriptase (RT)-PCR for other respiratory agents, duration of hospital stay, and hematological and biochemical laboratory findings. Results: Out of 467 children with a confirmed diagnosis of SARS-CoV-2 infection, 94 (20.1%) had Omicron infection and 373 (79.9%) were infected with other variants; the Omicron group had younger patients than the remaining samples (P<0.001). The most frequent clinical symptoms in all children were cough (53.5%) and fever (32.3%), followed by vomiting (20.8%). Lung involvement in the Omicron group (10.6%) was significantly lower than in the remaining samples (29.8%) (P<0.001). Hemoglobin and lymphocyte levels were lower in the Omicron-infected group (both P<0.001), while prothrombin time, activated partial thromboplastin time, international normalized ratio, and D-dimer levels were significantly higher in this group (P<0.001, P<0.001, P<0.001, and P=0.023, respectively). In terms of lung involvement, those with lung involvement were significantly older (P<0.001). Conclusions: Although lung involvement was less common with Omicron infection, this group had greater hematological system involvement, such as anemia, lymphopenia, D-dimer elevation, and coagulation disorders.

Objective: To evaluate the clinical and molecular features of human cystic echinococcosis in Tehran, Iran. Methods: In this cross-sectional study, all human cystic echinococcosis patients admitted to Tehran’s hospitals from 2011 to 2019 were enrolled, and demographic characteristics, clinical findings, and laboratory data were collected. Formalin-fixed, paraffin-embedded and fresh tissue samples of 175 cystic echinococcosis patients were evaluated for molecular characterization. The samples’ isolated DNA was used to amplify cytochrome c oxidase I and NADH dehydrogenase subunit I genes. Also, the morphological features of fresh samples were examined. Results: In total, 175 patients with a mean age of 45 (9-98) years were admitted to Tehran’s hospitals diagnosed with cystic echinococcosis. Moreover, the highest (26.9%) and the lowest (2.9%) prevalence of cystic echinococcosis cases were in the 16-30 and 1-15 years range, respectively. Male/female ratio was 0.96 (49.1% vs. 50.9%). The liver was affected in 92 patients (52.6%), and two or more organs were infected in 7 patients (4.0%). The cysts’ diameter varied from 1 to 25 cm, and 96.0% of the patients had a single hydatid cyst. All patients underwent radical surgery and the PAIR technique was applied for all cases. No significant difference was observed between the protoscolex hooks of pulmonary and hepatic cysts. G1-G3 had the highest percentage (99.4%) over other identified G6 genotypes (0.6%). Conclusions: The sheep-dog cycle plays an important role in transmitting the human cystic echinococcosis infection in Tehran.

Rationale: Though cutaneous tuberculosis accounts for a small proportion of all tuberculosis cases, it becomes an important health issue considering its high prevalence in tropical countries. Due to its myriad clinical manifestations, it becomes difficult to diagnose and may pose a great diagnostic dilemma. Patient concerns: A 17-year-old male complaint of ulcerproliferative lesion on the left lower leg for 5 years. There was no history suggestive of tuberculosis. On cutaneous examination, single well-defined erosiocrustive plaque of size 14 cm × 13 cm with yellowish adherent crust presented over the left lower leg. The underlying surface shows ulceration after removing the crust. Diagnosis: Ulcerative Lupus vulgaris. Interventions: Anti-tubercular drug therapy (isoniazid, rifampicin, pyrazinamide and ethambutol). Outcomes: Lesion showed dramatic improvement after one month of anti-tubercular therapy. Lessons: Dermatologists should be aware of variable clinical presentations of cutaneous tuberculosis so as to diagnose it timely and correctly.