Q and A: about health and research

Diphtheria is a serious and potentially life-threatening bacterial infection that was once widespread. In the early 20th century, thousands of people in Germany became infected every year , and mortality—especially among children—was high. Today, widespread vaccination has drastically reduced cases , but the disease has not been eradicated and remains a risk, particularly in regions with low vaccination coverage. Therefore, immunization is still essential . 1. What Is Diphtheria? Diphtheria is a contagious infectious disease caused primarily by the bacterium: Corynebacterium diphtheriae The main danger is not the bacteria itself , but a toxin (diphtheria toxin) produced by the bacteria. This toxin: Destroys local tissue (especially in the throat) Can spread through the bloodstream Damages vital organs such as the heart and nervous system 2. Forms of Diphtheria There are two main clinical forms: Respiratory (Pharyngeal) Diphtheria Affects the throat, nose, or la...

Kallmann syndrome is a rare inherited condition that primarily affects sexual development and the sense of smell. It is defined by the combination of delayed or absent puberty and anosmia (loss of smell) or hyposmia (reduced smell) .  The disorder arises due to a deficiency of gonadotropin-releasing hormone (GnRH), a key hormone produced by the hypothalamus that regulates reproductive function. Overview and Prevalence Kallmann syndrome belongs to a group of conditions known as hypogonadotropic hypogonadism , in which the body fails to produce sufficient sex hormones due to impaired signaling from the brain. Without adequate GnRH, the cascade of hormonal events required for puberty does not occur. It is considered a rare disorder , with an estimated prevalence ranging from: 1 in 10,000 to 1 in 50,000 individuals More common in males (~1 in 30,000) than females (~1 in 120,000) However, the true number of cases may be higher due to underdiagnosis , especially in milder or ...