Would I Get Sick Again if I Touch Snott
How Long Am I Contagious?
Medically Reviewed by Jennifer Robinson, Doctor on November fourteen, 2021
Flu
You can actually infect someone earlier you lot starting time feeling symptoms of the flu.You are most contagious in the 3 to four days after y'all offset to experience sick, merely y'all remain contagious as long equally you have symptoms. Usually this is about a week, but it could be a few days more for children or people with weak immune systems. You can also pass it on a twenty-four hour period or and then before you start feeling sick. Some people can transfer the virus without e'er getting symptoms.
Cold
A cold often starts with a runny nose and sore throat, followed past coughing and sneezing. You're contagious a day or two before this starts and for as long as you feel sick, ordinarily a week or two. It may exist longer if you already take breathing problems or a weak immune arrangement. Yous're more probable to infect others during in the first few days, when symptoms are at their worst.
COVID-19
Caused by the virus SARS-CoV-2, this infection tin can cause fever, chills, trouble animate, trunk aches, fatigue, cough, and nausea. But you tin spread the virus 2 to 3 days before you observe any of these signs. You tin can also pass information technology on to others if you aren't showing symptoms. If y'all are sick, you can exist contagious for a while, and then stay away from others until your symptoms ameliorate and you've been without a fever for iii days in a row. If you exam positive for the virus only don't have symptoms, information technology's best to keep abroad from others for x days to see if yous get sick.
Mononucleosis
This viral illness is also known as the kissing disease considering that's ane of the ways you can pass information technology on to others. You lot might be contagious from the moment you're infected, and that isn't good because it ofttimes takes iv-7 weeks before you find any of its flu-like symptoms. You can spread the disease the entire time you have it. Even once you feel better, y'all may be able to pass on the virus for as long as 18 months.
Norovirus
It can cause diarrhea, nausea, stomach pain, airsickness, headache, fever, and body aches. Just a few norovirus particles (your body sheds billions) can infect another person, well-nigh often by touching nutrient or kitchen tools. Yous're nigh contagious when you're sick and for a few days after, simply you tin can nevertheless spread it for two weeks or more than after y'all feel better. Clean your easily regularly and launder food thoroughly to foreclose spreading norovirus.
Conjunctivitis (Pinkeye)
Germs, irritants, or allergens can inflame the tissue, known as the conjunctiva, that lines your inner eyelid and the whites of your optics. Your eye might be red, itchy, or watery. When information technology's caused by bacteria, your eye may fill with pus. You tin can spread it to others for every bit long every bit you notice symptoms or for 24 hours after you lot first antibiotic drops. The milder viral form is contagious while you have symptoms and for a day or ii before.
Measles
Vaccines make it rare in the U.S., simply worldwide, thousands dice yearly from this virus, most under age 5. It causes a dry out cough, sore throat, runny nose, fever, and a distinctive rash of tiny red bumps, some raised. Information technology spreads easily, hanging around in the air for 2 hours after you cough or sneeze. Once the rash appears, you've already been contagious for iv days. You'll stay that mode for 4 days after it goes away.
Hand, Foot, and Rima oris Disease
This virus, common in young children, causes a red rash on the hands, feet, or lesser. It also may cause a fever, sore throat, and painful, baking sores in the oral cavity. You're nearly contagious the outset calendar week, simply some people can still laissez passer information technology on for weeks. You can go it from a unproblematic cough, sneeze, or contact with spit or open blisters. Information technology's best to keep yourself or your kid home if you lot have manus, foot, and mouth affliction.
Whooping Cough
Most dangerous to babies, this bacterial infection has reappeared more than recently in all ages because of missed vaccinations and booster shots. The "whoop" refers to the telltale sound your chest makes equally y'all breathe in subsequently a cough fit, though this may not happen in teens or adults. You can pass it on, generally through tiny droplets in the air, for 2 to 3 weeks after the cough starts. Antibiotics may be able to shorten this fourth dimension.
Impetigo
Young kids most frequently go these contagious sores on the face, neck, easily, or barrel. They may be unbroken, or wet and carmine, or crusty and yellow. The bacteria often go far when you cut, scrape, or irritate the skin. Y'all can transfer it to other people who touch the sores. Proper handwashing could help prevent information technology. Doctors utilise antibiotics in a pill or ointment to impale the leaner.
MRSA
Skin infection with MRSA, a type of staph bacteria called Staphylococcus aureus, could be serious because it doesn't respond to several antibiotics. Y'all may accept sores, bumps, or a swollen cutting with pus within. You can give a MRSA infection to someone if they make contact with your infection or anything that touched it. If you take a MRSA infection, complete all treatments and follow your doctor's instructions so information technology won't spread to others.
E. coli
It'southward one of the nearly mutual causes of bacterial diarrhea, only in that location are others similar campylobacter, salmonella, and shigella. You lot tin can pass these bacteria on to others when y'all touch nutrient or surfaces with unwashed hands, or by swimming in a pool when you've been sick. It's contagious while you're ill, and sometimes longer. Regular bathing and handwashing are the best means to protect others and yourself.
Chest Cold
Sometimes called bronchitis, it happens when regular cold symptoms motility down to inflame your lungs, which makes yous cough. Merely whether information technology's a common cold, the influenza, or some other virus, the dominion of thumb is the same: You're contagious for as long as you have symptoms, and maybe a little scrap longer. To stop the spread, keep your easily clean at all times and cover your oral fissure when yous sneeze or cough.
Chickenpox
This viral rash causes a fever or sore throat and telltale itchy spots all over your body. A new vaccine means most kids don't go it anymore. But if yours do, it's very contagious. Go along them home until all the sores crust over.
Shingles
Once you lot've had chickenpox, the virus lives on inside your body. It may come back afterwards, often in center historic period, every bit shingles, a painful, blistering rash. The chickenpox virus lives within these blisters. Although the liquid that oozes out tin can't requite someone else shingles, it tin requite them chickenpox if they oasis't had information technology and haven't been vaccinated.
Poisonous substance Ivy
Like its cousins, toxicant oak and poison sumac, its leaves have an oily sap (urushiol) that can brand your skin red, bloated, and itchy. Until you wash it off with soap and water, y'all tin can pass the oil to someone who touches it, or to other parts of your body. Cool showers and calamine lotion can assistance relieve the itch. It should be gone in a calendar week or ii.
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Source: https://www.webmd.com/cold-and-flu/ss/slideshow-how-long-contagious
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