Giardiasis is an intestinal infection caused by the parasite Giardia lamblia. It is one of the most common waterborne diseases worldwide.
Transmission of Giardiasis
Giardiasis is primarily transmitted through the following routes:
Thyroid cancer is a type of cancer that originates in the thyroid gland, which is located at the base of the neck and produces hormones that regulate metabolism. Here are key points about thyroid cancer:
Angina, often referred to as angina pectoris, is a type of chest pain or discomfort that occurs when the heart muscle doesn’t get enough oxygen-rich blood. Here’s a detailed overview:
Types of Angina
- Stable Angina:
- Characteristics: Occurs with exertion or stress and typically resolves with rest or medication.
- Duration: Usually lasts a few minutes.
- Unstable Angina:
- Characteristics: Can occur at rest, is more severe, and lasts longer. It may signal an impending heart attack.
- Duration: Can last longer and is not relieved by rest.
- Variant (Prinzmetal’s) Angina:
- Characteristics: Caused by spasms in the coronary arteries, often occurring at rest, and can happen at any time, including during sleep.
- Duration: Usually short-lived.
Causes
The primary cause of angina is reduced blood flow to the heart muscle, typically due to coronary artery disease (CAD). Here are the main causes and contributing factors: