Bronchitis and asthma are different diseases, which are often confused by laypeople. It is very common to see people calling bronchial asthma, as both terms were synonymous. Similarly, terms such as bronchial asthma and allergic bronchitis are also often used to describe clinical presentations that are actually asthma.
Bacteria are microscopic organisms formed by a single cell. There are bacteria all over the planet, whether in water, soil or highly hostile habitats, such as radioactive waste in deep areas of the earth's crust or in the highly acidic pH of our stomach.
Viruses are microscopic infectious agents, and up to 10,000 smaller than most bacteria. They are the most common biological structure on our planet, being more numerous than animals, plants, fungi, parasites and bacteria together.
Most waterborne diseases are caused by microorganisms present in freshwater reservoirs, usually after contamination by human or animal feces. Transmission of the infectious agent through water may occur through contact with the skin during bathing, by ingestion or aspiration of germs present in the water.
Diverticula are small pockets or holes that form on the wall of the colon, usually in people over 60 years of age. Many people have diverticula in the colon without presenting any type of complaint or symptom.
Dizziness is a term, which is difficult to define, and is often mistakenly used to describe feelings as imbalance, nausea, hypotension, weakness, double vision, blurred vision or discomfort.
Cold sores are an infection of the mouth and lips caused by a virus called herpes simplex virus type 1. Their injuries are typical and are characterized by small grouped blisters that appear on the infected patient's lip. These blisters are painful and will break down after a few days, leaving small scabs instead.
Syphilis is a sexually transmitted disease caused by a bacterium called Treponema pallidum. Its main symptom is a painless ulcer, like a cold sore in the genital region. If left untreated, the bacteria can spread throughout the body and, after years of infection, lead to serious complications such as impairment of the central nervous system.
The dog may even be the man's best friend, but that does not stop millions of people are bitten by these animals every year. There are no reliable data in Brazil, but in the US it is estimated about 4.5 million people bitten by dogs, with varying degrees of severity, every year. Children, especially those between 5 and 9 years are the most affected. Of these 4.5 million bites, about 900,000 (20%) evolve with wound infection.
The earliest account we know of a home pregnancy test comes from ancient Egypt, in the year 1350 BC A test described in a papyrus said that the woman suspected to be pregnant should urinate on wheat seeds and barley. If the wheat flourish, his wife was pregnant with a girl. Already were barley to flourish, pregnancy was a boy. If neither grew up, this was a sign that the woman was not pregnant.
