Le hantavirus des Andes est un virus rare appartenant à la famille des hantavirus et présent principalement en Amérique du Sud. Il se transmet principalement par les rongeurs, notamment par l’inhalation d’air contenant des particules provenant de l’urine, des excréments ou de la salive d’animaux infectés. Contrairement à la plupart des hantavirus, le hantavirus des […]
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Insect Bites in Spring: A Common but Overlooked Issue
Le printemps s’accompagne de davantage de sorties, d’activités en plein air et de contact avec la nature. Cependant, avec le changement de saison, la présence d’insectes augmente également, faisant des piqûres un problème courant du quotidien. Causes les plus fréquentes Les moustiques, les abeilles, les guêpes et les tiques sont responsables de la majorité des […]
Spring Allergies: Symptoms, Management, and When to See a Doctor
Les allergies printanières comptent parmi les formes les plus fréquentes de réactions allergiques et sont principalement liées au pollen des plantes, des arbres et des graminées. L’augmentation des allergènes aéroportés au printemps peut activer le système immunitaire chez les personnes sensibles et provoquer des symptômes caractéristiques. Symptômes des allergies printanières Les symptômes les plus courants […]
Numbness in the hands: causes, diagnosis and when to seek medical advice
Numbness in the hands is a common neurological symptom, often described as tingling, burning or reduced sensation affecting the fingers or the entire hand.
In most cases it is transient and benign; however, in some situations it may indicate an underlying medical condition that requires evaluation.
Common causes
The most frequent cause is carpal tunnel syndrome, typically affecting the thumb, index and middle fingers and often worsening at night.
Other common causes include:
Cervical spine disorders with nerve root compression
Poor posture or prolonged nerve pressure
Diabetes and diabetic neuropathy
Vitamin deficiencies, especially vitamin B12
Anxiety and hyperventilation
Circulatory disorders of the upper limbs
Night-time numbness
Numbness during sleep is common and usually related to carpal tunnel syndrome or an inappropriate sleeping position causing nerve compression.
When to seek medical attention
Medical evaluation is recommended if numbness:
persists for an extended period
is associated with weakness or pain
progressively worsens
appears suddenly and severely
In rare cases, it may be associated with vascular or serious neurological conditions.
Diagnosis and treatment
Diagnosis is based on medical history and neurological examination.
Depending on the clinical findings, investigations may include:
nerve conduction studies (EMG)
cervical spine imaging
blood tests
Treatment depends on the underlying cause and may involve ergonomic measures, physiotherapy, medication or, in selected cases, surgical intervention.
Winter and flu
Influenza is an acute viral infection of the respiratory tract caused by influenza viruses and occurs mainly during the winter months. It is easily transmitted through respiratory droplets from breathing, coughing, or sneezing, as well as by contact with contaminated surfaces.
The clinical presentation is characterized by sudden onset of high fever, chills, headache, muscle aches, marked malaise, cough, sore throat, and nasal congestion or runny nose. In some cases, gastrointestinal symptoms may occur, especially in children.
In most cases, the disease is self-limited and resolves within 5–7 days with supportive care, adequate hydration, and rest. However, there are certain warning signs that require immediate medical evaluation: persistent or very high fever, shortness of breath or rapid breathing, cyanosis, chest pain, altered level of consciousness, dehydration, or worsening of symptoms after a period of initial improvement.
Prevention is mainly based on annual vaccination, adherence to hygiene measures, and avoidance of close contact with infected individuals. Special attention is required for high-risk groups such as the elderly, pregnant women, and patients with chronic diseases.