Germs live everywhere. There are germs, also called microbes, in the air; on food, plants and animals; and in the soil and water. Germs are on just about every surface, including the human body. Most germs cause no harm. The immune system protects against things that cause infections, called ...
Infectious diseases can be caused by: Bacteria. These one-cell organisms are responsible for illnesses such as strep throat, urinary tract infections and tuberculosis. Viruses. These microscopic germs are even smaller than bacteria. They cause many diseases, including the common cold, COVID-19 and HIV. Fungi. These cause many skin diseases, such as ringworm and athlete's foot. Other types of ...
Los agentes infecciosos existen en muchas formas y tamaños. Las bacterias y los protozoos son organismos microscópicos unicelulares. Los virus son más pequeños aún. Los hongos crecen como plantas. Los helmintos se asemejan a los gusanos.
Fight coronavirus at home by cleaning and disinfecting surfaces that are touched often. Most disinfectants for home use will kill the virus that causes COVID-19.
يمكنك أيضًا الوقاية من العدوى عن طريق: غسل اليدين. غسل الأيدي أحد أسهل الطرق وأفضلها لحماية نفسك من الجراثيم ومعظم أنواع العدوى. اغسل يديك بالماء والصابون لمدة 20 ثانية على الأقل. واغسل يديك قبل تحضير الطعام أو تناوُله ...
, called the innate immune system. The innate immune system is a general defense mechanism that protects you from the time your body is exposed to harmful germs until the time the second part of the immune response — the a aptive immune system — kicks in. The adaptive immune system identifies nd attacks specific germ invaders. It also remembers
