Diphtheria is caused by Corynebacterium species, mostly by toxin-producing Corynebacterium diphtheriae and rarely by toxin-producing strains of C. ulcerans and C. pseudotuberculosis. The most common type of diphtheria is classic respiratory diphtheria, whereby the exotoxin produced characteristicall...y causes the formation of a pseudomembrane in the upper respiratory tract and damages other organs, usually the myocardium and peripheral nerves. Acute respiratory obstruction, acute systemic toxicity, myocarditis and neurologic complications are the usual causes of death. The infection can also affect the skin (cutaneous diphtheria). More rarely, it can affect mucous membranes at other non-respiratory sites, such as genitalia and conjunctiva.
C. diphtheriae is transmitted from person to person by intimate respiratory and direct contact; in contrast, C. ulcerans and C. pseudotuberculosis are zoonotic infections, not transmitted person-to-person. The incubation period of C. diphtheriae is two to five days (range 1– 10 days). A person is infectious as long as virulent bacteria are present in respiratory secretions, usually two weeks without antibiotics, and seldom more than six weeks. In rare cases, chronic carriers may shed organisms for six months or more. Skin lesions are often chronic and infectious for longer periods. Effective antibiotic therapy (penicillin or erythromycin) promptly terminates shedding in about one or two days.
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Global cardiovascular disease (CVD) burden is high and rising, especially in low-income and middle-income countries (LMICs). Focussing on 45 LMICs, we aimed to determine (1) the adult population’s median 10-year predicted CVD risk, including its variation within countries by socio-demographic char...acteristics, and (2) the prevalence of self-reported blood pressure (BP) medication use among those with and without an indication for such medication as per World Health Organization (WHO) guidelines.
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GOVERNMENT NOTICE | No. 192 Promulgation of Medicines and Related Substances Control Act, 2003 (Act No. 13 of 2003), of the Parliament
COVID-19 Infection Prevention and Control Sameeksha (Hindi; review) compiles recent key IPC resources on COVID from scientific journals, WHO guidelines, Ministry of Health and Family Welfare /Government of India guidelines, and trainings and IPC resources. The intended target audience for this inclu...des clinical and public health professionals in both public and private sector in India.
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Infectious disease outbreaks are frequently characterized by scientific uncertainty, social and institutional disruption, and an overall climate of fear and distrust. Policy makers and public health professionals may be forced to weigh and prioritize potentially competing ethical values in the face ...of severe time and resource constraints. This document seeks to assist policy-makers, health care providers, researchers, and others prepare for outbreak situations by anticipating and preparing for the critical ethical issues likely to arise.
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Insufficient funding is hindering the achievement of malaria elimination targets in Africa, despite the pressing need for increased investment in malaria control. While Western donors attribute their inaction to financial constraints, the global health community has limited knowledge of China’s ex...panding role in malaria prevention. This knowledge gap arises from the fact that China does not consistently report its foreign development assistance activities to established aid transparency initiatives. Our work focuses on identifying Chinese-funded malaria control projects throughout Africa and linking them to official data on malaria prevalence. By doing so, we aim to shed light on China’s contributions to malaria control efforts, analysing their investments and assessing their impact. This would provide valuable insights into the development of effective financing mechanisms for future malaria control in Africa.
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This training module on malaria case management has been developed to support the staff involved in malaria control and elimination programmes in the effective organization of malaria diagnosis and case management services
Buruli ulcer (BU) is a skin-related neglected tropical disease (skin NTD) caused by infection with
Mycobacterium ulcerans. BU is the third most common mycobacterial disease after tuberculosis and leprosy
in people who are not immunocompromised. The infection manifests in non-ulcerative forms as no...dules,
plaques and/or oedemas, which ulcerate within 4–6 weeks and display characteristic undermined edges and yellowish-white necrotic slough . Most lesions occur on the lower limbs.
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The scope includes the assessment of activities to improve the response to affected populations, stakeholders, partners and donors, building on lessons learnt so far in this outbreak.