Common bacteria and viruses that cause disease




















These microscopic particles have been associated with coughing, wheezing and worsening asthma. Even so, some studies have linked them to protecting against some health threats. Bacteria in the soil produce endotoxins, so they are virtually everywhere outdoors.

They can come indoors with pets, pests, humidifiers, kitchen compost bins and outdoor air. Walking, dry mopping and other activities can cause them to become airborne once inside. Most often, the human occupants of a home or workplace are the source of infectious diseases.

A key step to reducing the spread of disease through indoor air is to practice healthy behavior. Precautions, like coughing or sneezing into the bend of your elbow, can curb the spread of airborne viruses and bacteria. Washing your hands and common surfaces with soap and water can keep them from spreading on indoor surfaces.

Effective ventilation may also help keep bacteria, viruses and other pollutants out of the indoor air. Research shows that air flow and ventilation can affect how diseases spread indoors. The more stagnant the air is, the more likely diseases are to spread. Ventilation can also limit moisture. Damp indoor spaces foster the growth and transmission of viruses and bacteria. California Air Resources Board. California Environmental Protection Agency.

Do not prepare food if you are ill with diarrhea or vomiting. Wear gloves while preparing food if you have wounds or infections on your hands or wrists. Sources Most people become infected by eating raw or undercooked shellfish, particularly oysters. Certain Vibrio species can also cause a skin infection when an open wound is exposed to salt water or brackish water.

Brackish water is a mixture of fresh water and salt water. It is often found where rivers meet the sea. Incubation period Vibrio wound infection: 1—7 days Gastrointestinal illness: 2—48 hours Symptoms In healthy people: Diarrhea, vomiting, abdominal pain In high-risk people: Sudden chills, fever, shock, skin lesions Duration of illness 3 days, when spread through food.

Duration of wound infections is variable. What to do If you have symptoms within a few days after eating raw or undercooked seafood, especially oysters, or develop a skin infection after being exposed to salt water or brackish water, contact your doctor. Some Vibrio species, such as Vibrio vulnificus , can cause particularly severe and life-threatening infections. Cook them before eating. Always wash your hands with soap and water after handing raw shellfish. Avoid contaminating cooked shellfish with raw shellfish and its juices.

Stay out of salt water or brackish water if you have a wound including cuts and scrapes , or cover your wound with a waterproof bandage if there's a possibility it could come into contact with salt water or brackish water, raw seafood, or raw seafood juices.

Wash wounds and cuts thoroughly with soap and water if they have been exposed to seawater or raw seafood or its juices. If you are in a group more likely to get a Vibrio infection, such as people with liver disease: Wear clothes and shoes that can protect you from cuts and scrapes when in salt water or brackish water. Wear protective gloves when handling raw seafood.

Date Last Reviewed. March 22, A variety of foods, particularly rice and leftovers, as well as sauces, soups, and other prepared foods that have sat out too long at room temperature.

Diarrheal: hours Emetic vomiting : 30 minutes to 6 hours. Diarrheal: Watery diarrhea and abdominal cramps Emetic vomiting : Nausea and vomiting. Infants : Honey and products containing honey, such as infant pacifiers filled with or dipped in honey. Infants : days Children and adults: hours. Infants: Lethargy, poor feeding, constipation, weak crying, poor muscle tone appear "floppy". Botulism is a medical emergency. Follow safe home canning instructions provided by the National Center for Home Preservation.

Drink pasteurized milk. Thoroughly cook foods, particularly meat, poultry, and gravies, to a safe internal temperature. Contaminated food, especially undercooked ground beef, unpasteurized raw milk and juice, soft cheeses made from raw milk, and raw fruits and vegetables such as lettuce, other leafy greens, and sprouts.

Severe diarrhea that is often bloody, severe stomach pain, and vomiting. Usually little or no fever is present. Symptoms of hemolytic uremic syndrome HUS include decreased urine production, dark or tea-colored urine, and losing pink color in cheeks and inside the lower eyelids.

Most people will be better in 5 to 7 days. If HUS develops, it usually occurs after about 1 week. If you cannot drink enough fluids to prevent dehydration or if your symptoms are severe including bloody diarrhea or severe stomach pain , call your doctor. Avoid eating high-risk foods, especially undercooked ground beef, unpasteurized milk or juice, soft cheeses made from unpasteurized milk, or sprouts.

Wash hands before, during, and after preparing food, after diapering infants, and after contact with cows, sheep, or goats, their food or treats, or their living environment. Raw or undercooked shellfish from contaminated waters, raw produce, contaminated drinking water, uncooked foods, and cooked foods that are not reheated after contact with an infected food handler.

Diarrhea, dark urine or light-colored stools , jaundice, fever, fatigue, nausea, joint pain, stomach pain, upset stomach, and loss of appetite. Symptoms usually last less than 2 months, although some people can be ill for as long as 6 months. See your doctor if you have signs or symptoms of hepatitis A or think you may have been exposed to the virus. Avoid eating raw oysters or other raw or undercooked shellfish. Unpasteurized raw milk and dairy products. Listeria can cause fever and diarrhea similar to other foodborne germs, but this type of Listeria infection is rarely diagnosed.

Adults age 65 and older Pregnant women and their newborns People whose immune systems are weakened due to illness or medical treatment. For invasive listeriosis, antibiotics given promptly can cure the infection. Recommendations for everyone: Do not drink raw unpasteurized milk, and do not eat soft cheeses made with it, such as queso fresco. Diarrhea, vomiting, nausea, and stomach pain. Wash hands frequently with soap and running water for at least 20 seconds, particularly after using the bathroom and before, during, and after preparing food.

Avoid eating high-risk foods, including raw or lightly cooked eggs, undercooked ground beef or poultry, and unpasteurized raw milk. Contact with an infected person or consumption of contaminated food or water. Sudden stomach cramping, fever, diarrhea that may be bloody or contains mucus, nausea, and feeling the need to pass stool even when the bowels are empty.

Wash hands with soap carefully and frequently, especially after going to the bathroom, after changing diapers, and before preparing foods or beverages. People who carry the bacteria Staphylococcus aureus Staph , which is commonly found on the skin, can contaminate food if they don't wash their hands before touching it. Drink plenty of fluids. Use a food thermometer and cook foods to their safe minimum internal temperature. Most people become infected by eating raw or undercooked shellfish, particularly oysters.

Vibrio wound infection: 1—7 days Gastrointestinal illness: 2—48 hours. The breakdown of self-tolerance, thought to be triggered by molecular mimicry, is a characteristic autoimmune disease.

For this new study, the researchers screened serum from patients and referred to an immunology diagnostic laboratory for testing for the presence of antibodies to either or both BfUbb and human ubiquitin and compared these with serum from healthy individuals.

The bacterium B. Some people had antibodies that reacted with both the human and the B.



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