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BACKGROUND Occupational activities performed by sound engineers are associated with hearing loss. However, there is a dearth of research on the hearing functions and the related hearing loss for sound engineers. OBJECTIVES To determine the hearing function and early effects of noise on the hearing ability of sound engineers, and to establish whether there are hearing conservation programmes (HCPs) available for sound engineer participants in Johannesburg. METHODS A quantitative cross-sectional design was used. Eight sound engineers from the Academy of Sound Engineering (ASE) participated in the study. The following data were collected from the participants case history data, ear-related symptoms and hearing conservation data. Hearing screening followed by full diagnostic audiological assessments was conducted for each participant. Descriptive statistics and one-sample t-test were used to analyse the data (confidence interval [CI] = 95%). RESULTS Participants reported tinnitus and aural fullness as common complaints. Only one participant had a unilateral impacted cerumen. All the participants presented with hearing within normal limits bilaterally, with a percentage loss of hearing (PLH) of 1.1% for all the participants. However, five participants presented with a notched configuration that was ≥ 10 decibel (dB), in the high frequency region at 3000 Hz and 6000 Hz bilaterally. One-sample t-test (p = 0.001) inferred that at a mean age of 27.6 years (standard deviation [SD] = 3.85), a notch at 3000 Hz and 6000 Hz was associated with an early sign of a hearing loss for the study participants. An HCP was not in place at the study site. CONCLUSION The study indicated a younger age as an associated early sign of noise-induced hearing loss (NIHL) for the study participants, and that audiologists' clinical practice needs to explore HCP strategies specific for the sound engineers in order to prevent hearing loss.BACKGROUND Recent estimates reveal that there are approximately 280 000 children between the ages of birth and 14 years who are living with the human immunodeficiency virus (HIV) and acquired immunodeficiency syndrome (AIDS) in South Africa. These children are living with a compromised immune system, are vulnerable to opportunistic infections and subsequent hearing loss. However, there is limited research on the nature and extent of this sensory impairment amongst school-aged children. OBJECTIVE This study aimed to determine an audiological profile of a cohort of school-aged children attending an antiretroviral (ARV) clinic, describing the occurrence of hearing loss and nature in terms of degree, type, configuration and symmetry. METHODS A non-experimental descriptive exploratory study was conducted, where 30 children aged between 6 and 12 years underwent diagnostic audiological assessments. Audiological procedures included case history, medical record review, otoscopic examination, immittance audiometry, purcal monitoring of children with HIV and AIDS.A study was conducted to investigate the seroprevalence and associated risk factors of Rift Valley fever (RVF) infection in cattle and some selected wildlife species at selected interface areas at the periphery of the Great Limpopo Transfrontier Conservation Area in Zimbabwe. Three study sites were selected based on the type of livestock-wildlife interface porous livestock-wildlife interface (unrestricted); non-porous livestock-wildlife interface (restricted by fencing) and livestock-wildlife non-interface (totally absent contact or control). Sera were collected from cattle aged ≥ 2 years representing both female and intact male. Sera were also collected from selected wild ungulates from Mabalauta (porous interface) and Chipinda Pools (non-interface) areas of the Gonarezhou National Park. Sera were tested for antibodies to Rift Valley fever virus (RVFV) using a competitive enzyme-linked immunosorbent assay (ELISA) test. AX2 test was used to assess differences between categories, and p 0.05 was considered as sattle and wildlife.Serious burn trauma is associated with changes of the immune system, and immunosuppression induced by burn trauma can lead to reactivation of latent infections. Herpetic viruses are known for their lifelong persistence after primary infection and ability to reactivate. Their reactivation in the setting of burn trauma or primary infection can cause serious complications for a weakened burn patient. Presented is a case of a toddler who sustained second-degree scald burns over 20% of his body surface area. The injury was complicated by a multi-resistant bacterial infection in addition to reactivation of a latent HHV-6 infection concurrently with a primary HSV-1 infection. Described further are basic diagnostics, local and systemic treatment strategies, and other complications due to disseminated herpetic infections. To date, HHV-6 reactivation has not been described in conjunction with burn injury.Eosinophilic angiocentric fibrosis (EAF) is a rare benign lesion of unknown aetiology, found predominantly in the upper respiratory tract. The fibrosis must be confirmed by considering other lesions in the differential diagnosis. The typical histological characteristics are the basis for establishing the diagnosis. We present a patient with long-term nasal obstruction caused by EAF. The patient had repeated resections of the lesion for its recurrences. As follows from the literature, radical resection is crucial for the treatment of EAF. This procedure may be difficult at times given the extent and localization of the disease..Familial hypercholesterolaemia (FH) is the most common autosomal dominant inheritable disease caused by a defective catabolism of LDL particles. Their subsequent accumulation in circulation accelerates atherosclerotic vascular disease. Selleckchem Tirzepatide Untreated FH increases the risk of premature manifestation of atherosclerosis (myocardial infarction - MI- or stroke); it is known that homozygous patients, if not adequately treated, are usually affected by atherothrombotic complications of the underlying disease before 20 years of age and often do not live longer than 30 years. Patients with FH are asymptomatic for a long period of time; their elevated blood lipid levels are often a random laboratory finding. The cardiovascular complications (MI or stroke) may be the primary manifestation of this disease. Clinical signs (xanthomas, xanthelasma or arcus corneae lipoides) occur rarely in these patients but are pathognomic, so at least basal awareness of these findings is necessary. Upon detection of such findings, a diagnostic procedure of FH including blood lipid measuring, careful personal and family history of cardiovascular disease (CVD) and subsequent referral to GPs or to MEDPED specialist is crucial.
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