Tooth enamel – the top layer of the tooth – is the hardest substance in the human body. This thin layer is formed by special cells called adamantoblasts and covers the crown of the tooth. The enamel consists of fibrous prisms of the rare mineral hydroxyapatite. As the tooth matures, the enamel loses water and … What is the Hardest Substance in the Human Body?
Anyone traveling to Africa from Central Europe must always be aware that the hygiene situation in the destination country can never be compared to ours! Even in hospitals and with doctors, the same standard as in Central Europe is not to be expected. Take precautions Tap water is not drinking water. Boiling and/or filtering is … Travel Precaution Africa
Duration A contact allergy usually subsides within several days if the triggering allergen is avoided. The healing process is accelerated by consistent medical treatment with cortisone ointments and moist compresses. However, if the allergen is not avoided, contact allergies can lead to persistent eczema, which can last for weeks or even months. A contact allergy … Duration | Contact allergy
Allergy types Nettles lead to itchy wheals on contact with the skin, which are often misinterpreted as an allergy. This is not an allergy, but a kind of toxic reaction of the skin to the stinging hairs of stinging nettles. However, the stinging nettle can also lead to allergies caused by its pollen. As an … Allergy types | Contact allergy
Definition A contact allergy is an allergy of the so-called late type. Here, after a previous asymptomatic contact with the substance that triggers the allergy, repeated contact causes a symptomatic reaction. There are both genetic and non-genetic factors that favour the occurrence of a contact allergy. The most common contact allergens are nickel and cosmetics. … Contact allergy
Diagnosis The diagnosis of a contact allergy includes various common tests of allergy diagnostics. The most important test for the diagnosis of a late type contact allergy is the epicutaneous test. In this test, potential allergens are incorporated in vaseline in a very high dilution and applied to the back of the affected person. The … Diagnosis | Contact allergy
Introduction Pneumonia is usually caused by an infection with bacteria or, more rarely, viruses. The time between the infection and the actual outbreak of the disease is called the incubation period. During the incubation period, the pathogen multiplies and spreads in the lungs, eventually causing the actual symptoms of pneumonia. This is the incubation period … Incubation period of pneumonia
Introduction Scabies (medical scabies) is a contagious skin disease with severe itching. It is caused by a special type of mite and its excrements. Despite the unpleasant symptoms, the disease usually does not pose a health hazard. For treatment, effective drugs for application on the skin are available as creams, sprays or ointments as well … How contagious is scabies?
How can I prevent an infection? In order to prevent infection with scabies or to avoid it, any close contact with people infected with scabies should be avoided. Children should not play with other sick children until the disease has healed. Even though there is usually no risk of infection from objects and furniture, they … How can I prevent an infection? | How contagious is scabies?
General information about dross The scabies, which is often referred to as “scabies” in the vernacular, is a parasitic disease that leads to severe itching in those affected. The disease often occurs in places where many people meet. These are for example old people’s homes or nursing homes, schools and other community facilities. The transmission … What are the symptoms of scabies?
