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The human microbiome is the full set of microorganisms (microbiota) present on and in our body. Its importance is such that the human being has been defined as a holobiont, that is, a superorganism made up of human eukaryotic cells and microbial cells. A balanced microbiota (eubiosis) is a prerequisite for health and well-being; on the contrary, an altered microbiota (dysbiosis) is the cause of pathological conditions. This concept is the cornerstone of the "microbiota revolution" Currently there is no disease that cannot be re- interpreted as a function of microbiome. While all human beings have similar DNA, it is the microbiome that make every person genetically unique; therefore the microbiome is the variable component of the genome which characterises each one of us. About one third of the microbiome is common to all individuals, while two thirds are specific to each subject and constitute a sort of fingerprint that forms and stabilises in the first 2-3 years of life. This timeframe is extremely importanthe entire life of an individual. This is a more than valid reason to promote breastfeeding even after eruption of baby teeth and throughout the weaning period. The role of pediatric dentists, together with hygienists and pediatricians, is to spread and stress out the importance of oral hygiene so that breastfeeding can only bring benefits and not carious lesions!

Point-of-care ultrasound is a rapidly evolving technology that enables rapid diagnostic imaging to be performed at a patient's bedside, reducing time to diagnosis and minimising the need for patient transfers. This has significant applications for rural emergency and general practice, and could potentially prevent unnecessary transfers of patients from rural communities to more urban centres for the purpose of diagnostic imaging, reducing costs and preventing disruption to patients' lives. Meta-analyses on point-of-care ultrasound have reported extremely high sensitivity and specificity when detecting lung pathology, and the potential applications of the technology are substantial. A significant application of the technology is in the care of rural paediatric patients, where acute lower respiratory pathology is the most common cause of preventable deaths, hospitalisations, and emergency medical retrievals from remote communities for children under five.

Although widely available, point-of-care ultrasound ultrasound is a highly sensitive and specific technology with wide potential applications. Issues with quality control and maintenance of skills are preventing widespread use. Coupling point-of-care ultrasound with telemedicine could help increase the usability and accessibility of the technology by reducing the issues associated with maintenance of skills and quality assurance.It is critical that those working with Aboriginal and Torres Strait Islander communities acknowledge and understand the impacts of trauma in order to engage in culturally safe practice. Recognising the role that historical and other traumas play in Indigenous people's communities and lives is a prerequisite for respectful and safe practice. Culturally safe, trauma-informed practice training makes cultural safety more achievable. click here Organisations that are serious about working and partnering with Aboriginal and Torres Strait Islander peoples are becoming 'trauma informed'. Aboriginal and Torres Strait Islander peoples are drawing immense strength and hope from understanding trauma and its impact on their lives. Sharing this knowledge with Aboriginal and Torres Strait Islander populations also has the potential to create safe healing spaces and interrupt trauma being passed on through generations. Trauma-informed cultural safety can allow profound change for individuals and the systems within which they practice.Breast cancer patients with synchronous contralateral axillary lymph node metastasis (CAM) are very rare, and there is a lack of published treatment guidelines for this kind of patients. We presented a human epidermal growth factor receptor 2 (HER-2)-positive breast cancer case, who was diagnosed as CAM with primary trastuzumab resistance. In this case report, we describes a 47-year-old woman diagnosed with HER-2 positive breast cancer with regional lymph nodes metastasis. However, physical examination identified contralateral axillary lymph nodes, the auxiliary inspection did not assist in determining the nature of the right axillary lymph nodes, and there was no obvious mass in the right breast. Hence, we performed the core needle biopsy on the right axillary lymph node, which revealed the presence of metastatic breast adenocarcinoma. The patient received trastuzumab-based treatment, but this only afforded a progression-free survival of 5 months, owing to primary trastuzumab resistance. She was then successfully treated with pyrotinib, and the outcome was close to clinical complete response (CCR) with a progression-free survival of over 27 months thus far. This case report may help inform clinicians in the diagnosis of breast cancer with CAM and offer the treatment options in HER-2-positive metastasis breast cancer with primary trastuzumab resistance.Bronchobiliary fistula (BBF) refers to the abnormal traffic between the biliary tract and the bronchus. The condition is very rare and usually develops secondary to liver echinococcosis or amebiasis, liver abscess, trauma, biliary obstruction, or tumors. BBF has a high mortality rate and currently, there are no accurate and effective diagnostic methods. This study reports the diagnosis and treatment of two patients with BBF which were confirmed by detecting bilirubin crystallization in the sputum. The first patient was a 45-year-old woman admitted to the hospital with "recurrent cough and lung infection". She had a history of multiple biliary tract surgeries and bilirubin crystallization was detected in bronchoalveolar lavage fluid (BALF) upon examination. Computed tomography (CT) imaging and magnetic resonance cholangiopancreatography (MRCP), together with clinical features, confirmed a diagnosis of BBF. The second patient was a 53-year-old woman admitted to the hospital with coughing and bile-like sputum. She had a history of cholangiocarcinoma surgery and bilirubin crystallization was detected in the cytomorphological BALF examination.