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If you're recovering native mono, you may want come be cautious of transmittable spread long after symptoms resolve. Peter Dazeley/Getty pictures
Mono is a highly infectious illness, which method you can spread it easily to others.Mono can be contagious for 4 come 6 weeks prior to symptoms appear — this is the incubation duration of the virus, or exactly how long the takes between infection and also symptoms.Mono may likewise be contagious long after symptom resolve, and some study has discovered that human being can still spread it at infectious levels several weeks or also months later.
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Infectious mononucleosis, or mono, is a common contagious illness. Yet the virus that causes it — Epstein Barr virus (EBV) — is even much more prevalent 보다 you could think.

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Even if you\"ve never had actually symptoms that mono, there\"s a good chance you\"ve had EBV. For example, a survey conducted from 2003 come 2010 found that more than 80% of human being ages 18 come 19 had antibodies come the virus in your blood, definition they\"d been exposed come it.

Most world contract EBV as kids, and never show serious symptom of mono. That exact same survey found that by ages six to eight, 55% the children already have the antibodies. The virus actually remains in her body forever, but becomes inactive or latent, an interpretation it is present however not bring about symptoms.

However, in part cases, research study has discovered that human being can still spread EBV lengthy after the symptom of mono have resided, or even when the symptoms haven\"t showed up at all. Here\"s what you need to know around when mono is considered contagious and also how the spreads.


How long is mono contagious?

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

The incubation period of the virus, or the time between when you\"re infected through EBV and also when the symptom of mono begin to appear, is around four to six weeks. You are typically contagious during the incubation period, therefore you could be walking around spreading the virus because that a lengthy time without also realizing it.

EBV takes hold in the immune cells in the oropharynx, or the mouth, so it is frequently spread through saliva. This process is referred to as oral shedding, and there has to be a high enough level the the virus in saliva to happen it to another human.

That method you won\"t gain it just from gift in the very same room together someone v it, unless possibly they sneeze straight on you. Most commonly, EBV spreads with kissing, sharing food or drinks, or because that young kids, sharing playthings that have actually been drooled on.

Symptoms that mono usually last because that a couple of weeks, and this is when you room the many contagious since you have higher levels of EBV in her saliva. However, you have the right to transmit EBV through oral shedding for lot longer, even after her symptoms have left.

For example, a 2005 study released in the newspaper of transmittable Diseases looked at 20 university students recently infected v EBV because that the an initial time. In 14 that the participants, EBV to be detected in saliva even 32 weeks after ~ infection, an interpretation they might still be dispersing EBV in spite of no longer showing symptoms of mono.

You may additionally be may be to spread out EBV without ever before showing symptoms of mono. A 2016 study released in the newspaper Clinical & Translational Immunology complied with 11 asymptomatic adults through EBV antibodies for six months, collecting 9 blood and oral cabinet samples. They uncovered 24% of the dental cell samples had actually EBV DNA, an interpretation they had contagious levels in your saliva.

Mia Mattioli, MD, an inner medicine doctor at Huntington Hospital in California, says it is suspected the this kind of shedding is component of a bike responsible for the high exposure rate. Adults through EBV antibodies asymptomatically shed, exposing your children, who then flourish up, asymptomatically shed, and also spread it to their young children.


How to minimize the danger of spreading mono

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

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However, if friend haven\"t had actually symptoms the mono and don\"t understand if you have the EBV antibodies, over there are means to lower your risk of capturing it from someone with symptoms that mono, together as:

Avoid sharing food or drinksNo kissing or sex-related activity

As for when these activities are safe to do again after who has had the symptom of mono, over there is no clear cut answer.

\"We typically say wait till the patience is asymptomatic, due to the fact that we think that this correlates v the largest amount of viral shedding,\" Mattioli says. But, that course, \"There is tho risk.\"