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If you're recovering native mono, you might want to be cautious of transmittable spread long after symptoms resolve. Peter Dazeley/Getty images
Mono is a highly infectious illness, which way you can spread it easily to others.Mono can be transmittable for 4 to 6 weeks prior to symptoms show up — this is the incubation period of the virus, or how long that takes in between infection and also symptoms.Mono may additionally be infectious long after symptoms resolve, and also some research has uncovered that civilization can still spread it at contagious levels numerous weeks or also months later.
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Infectious mononucleosis, or mono, is a typical contagious illness. However the virus that causes it — Epstein Barr virus (EBV) — is even more prevalent 보다 you might think.

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Even if you"ve never had actually symptoms that mono, there"s a an excellent chance you"ve had actually EBV. For example, a survey performed from 2003 come 2010 uncovered that an ext than 80% of human being ages 18 come 19 had antibodies come the virus in your blood, meaning they"d to be exposed to it.

Most people contract EBV together kids, and also never present serious symptoms of mono. That exact same survey uncovered that by ages six come eight, 55% the children currently have the antibodies. The virus actually stays in your body forever, but becomes inactive or latent, an interpretation it is present however not causing symptoms.

However, in some cases, research has uncovered that people can still spread out EBV long after the symptoms of mono have resided, or even when the symptom haven"t showed up at all. Here"s what you should know around when mono is thought about contagious and how that spreads.

How lengthy is mono contagious?

Mono is identified by a fever, sore throat, swollen lymph nodes and also extreme exhaustion that have the right to last number of weeks or also months. However, it"s infectious long before and also after symptoms appear.

The incubation duration of the virus, or the time in between when you"re infected with EBV and also when the symptom of mono start to appear, is around four to six weeks. Girlfriend are frequently contagious throughout the incubation period, therefore you could be walking about spreading the virus because that a long time without even realizing it.

EBV takes host in the immune cell in the oropharynx, or the mouth, so it is commonly spread with saliva. This process is dubbed oral shedding, and also there has to be a high enough level that the virus in saliva to pass it to one more human.

That way you won"t acquire it simply from being in the same room as someone through it, unless perhaps they sneeze straight on you. Most commonly, EBV spreads v kissing, share food or drinks, or for young kids, sharing toys that have actually been drooled on.

Symptoms of mono generally last for a couple of weeks, and this is as soon as you room the many contagious since you have greater levels of EBV in her saliva. However, you can transmit EBV through dental shedding for lot longer, also after her symptoms have actually left.

For example, a 2005 study released in the journal of infectious Diseases looked at 20 university students newly infected through EBV because that the first time. In 14 that the participants, EBV was detected in saliva also 32 weeks after ~ infection, meaning they could still be spreading EBV regardless of no longer showing symptom of mono.

You may also be able to spread out EBV without ever showing symptom of mono. A 2016 study released in the newspaper Clinical & Translational Immunology followed 11 asymptomatic adults with EBV antibodies for 6 months, collecting 9 blood and oral cabinet samples. They uncovered 24% the the oral cell samples had EBV DNA, meaning they had transmittable levels in your saliva.

Mia Mattioli, MD, an interior medicine physician at Huntington Hospital in California, says it is suspected that this kind of shedding is part of a bicycle responsible because that the high exposure rate. Adults through EBV antitoxin asymptomatically shed, exposing your children, that then prosper up, asymptomatically shed, and also spread that to your young children.

How to reduce the hazard of spreading mono

Because EBV is for this reason widespread, and also can be spread also by asymptomatic carriers, it"s impractical to try to protect against it altogether, Mattioli says.

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However, if friend haven"t had actually symptoms the mono and also don"t understand if you have the EBV antibodies, there are means to reduced your threat of catching it native someone with symptoms that mono, such as:

Avoid sharing food or drinksNo kissing or sexual activity

As for as soon as these activities are safe to perform again after who has had the symptoms of mono, there is no clear reduced answer.

"We frequently say wait until the patience is asymptomatic, due to the fact that we think that this correlates v the biggest amount of famous shedding," Mattioli says. But, of course, "There is tho risk."