infectious diseases are disorders caused by organisms — such as bacteria, viruses, fungi or parasites. some infectious diseases can be passed from person to person. and you may get others by consuming contaminated food or water or being exposed to organisms in the environment. many infectious diseases, such as measles and chickenpox, can be prevented by vaccines. general signs and symptoms common to a number of infectious diseases include: there is a problem with information submitted for this request. to provide you with the most relevant and helpful information, and understand which information is beneficial, we may combine your email and website usage information with other information we have about you. an easy way to catch most infectious diseases is by coming in contact with a person or an animal with the infection. infectious diseases commonly spread through the direct transfer of bacteria, viruses or other germs from one person to another.
many germs can linger on an inanimate object, such as a tabletop, doorknob or faucet handle. when you touch a doorknob handled by someone ill with the flu or a cold, for example, you can pick up the germs he or she left behind. mosquitoes can carry the malaria parasite or west nile virus. disease-causing germs can also infect you through contaminated food and water. this may occur if: in addition, certain other medical conditions may predispose you to infection, including implanted medical devices, malnutrition and extremes of age, among others. but some infections — such as pneumonia, aids and meningitis — can become life-threatening. cook foods to the proper temperature, using a food thermometer to check for doneness. a single copy of these materials may be reprinted for noncommercial personal use only.
infectious diseases are caused by harmful organisms that get into your body from the outside, like viruses and bacteria. you may be at an increased risk if your immune system is weakened or if you travel to areas with certain highly transmissible diseases. viral and bacterial infections can have symptoms in many areas of your body, like: you may develop symptoms when your cells are damaged or destroyed by the invading organism and as your immune system responds to the infection. there are many simple ways to reduce your risk of infectious disease and even prevent certain illnesses altogether.
vaccines reduce your risk of getting an infectious disease by training your immune system to recognize and fight off infections from harmful invaders. in addition to vaccines and safe food handling habits, you can reduce your risk of coming down with or spreading an infectious disease with a few everyday practices. babies and children can be more likely to get sick from infectious diseases because their immune systems are still developing. fortunately, there are many simple things you can do to keep yourself healthy. policy cleveland clinic is a non-profit academic medical center.
disease and condition information including an a-z index from cdc. diseases & conditions. novel coronavirus. covid-19. since january 2020, cdc has been each infectious disease has its own specific signs and symptoms. general signs and symptoms common to a number of infectious diseases include:. infectious diseases are illnesses caused by harmful agents (pathogens) that get into your body. the most common causes are viruses,, .
, . common infectious diseaseschickenpox.common cold.diphtheria.e. coli.giardiasis.hiv/aids.infectious mononucleosis.influenza (flu) common illnessesallergies.colds and flu.conjunctivitis (“pink eyeu201c)diarrhea.headaches.mononucleosis.stomach aches.
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