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Doctor insights on: Does Valtrex Work On Flu Viruses

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Does Valtrex (valacyclovir) work on flu/viruses?

Does Valtrex (valacyclovir) work on flu/viruses?

Not flu: Valacyclovir (valtrex) only works on certain herpes viruses (mainly herpes simplex and varicella zoster). It has no activity against influenza (flu) virus or other respiratory viruses.

Virus (Definition)

A virus is a small infectious agent that can replicate only inside the living cells of an organism. Viruses can infect all types of organisms, from animals and plants ...Read more


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2yrs son carpooll wit ath 2yrs boy who always have flu everyday, is car purifier/car ioniser/car ozoniser works to protect my son frm d virus?

2yrs son carpooll wit ath 2yrs boy who always have flu everyday, is car purifier/car ioniser/car ozoniser works to protect my son frm d virus?

Flu vaccine: The best ways to prevent illness from influenza virus is to get the flu vaccine every year, avoid direct contact with those who are sick with respiratory infections, and regular hand-washing. I am not aware of any car air purifiers that help to prevent people from getting sick from respiratory viruses.

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Do flu shots really work on a flu viruses.?

2014 – 2015 Flu Shot: Trivalent works against 3 influenza viruses – Influenza A viruses (H3N2 & H1N1) & 1 influenza B virus. Quadrivalent & the live attenuated Influenza vaccine work against these & a second influenza B virus.

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Felt flu-ish with body aches for 5 days now. Is that normal time frame for virus or flu bug to work its way out? (Going to doc as I still feel awful)

Felt flu-ish with body aches for 5 days now. Is that normal time frame for virus or flu bug to work its way out? (Going to doc as I still feel awful)

Yes: Most viral infections peak at day 3 and begin to improve by day 5. Anything that gets close to being there for a week without improvement should be checked out. Drink plenty of fluid - eat some light high protein foods and keep your appointment. Good luck!

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Do flu shots really work on a flu virus?

Do flu shots really work on a flu virus?

Can be effective.: 2014 – 2015 Flu Shots: Trivalent works against 3 influenza viruses – Influenza A viruses (H3N2 & H1N1) & 1 influenza B virus. Quadrivalent & the live attenuated Influenza vaccine work against these & a second influenza B virus.

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Is the flu always a disease caused by a virus?

Is the flu always a disease caused by a virus?

Sure: True influenza is always caused by an influenza virus but there are lots of influenza-like viruses caused by other respiratory viruses and the stomach 'flu, not an influenza at all.

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Is there a flu or virus going around in cincinnati area?

Is there a flu or virus going around in cincinnati area?

Yes: There is a flu virus going around the entire western hemisphere, just as it does every year. The peak of flu season is not yet here. Get your flu-shot while you still can.

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Can a virus or flu cause premature beats to worsen? Or become for painful?

Can a virus or flu cause premature beats to worsen? Or become for painful?

Yes and no: There are viruses that attack the heart but they tend to be present in the spring. The influenza virus isn't one of them. While the virus itself doesn't cause extra beats, being ill with fever and/or sweating, and/or diarrhea, and/or vomiting, and/or reduced fluid intake and/or disturbed sleep - all can affect your heart rhythm.

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How long does it take cold/flu-induced laryngitis to go away & heal? I've had it for 3 days, & I'm getting over a virus. I have to sing in 5 days. Help!

Longer than 5 days: Well sorry to tell you may take longer than 5 days. Since you are a singer try rest and hot fluids with lemon. May get you through

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Is there a difference between flu viruses a, b, and c?

Is there a difference between flu viruses a, b, and c?

Yes: Influenza a, b & c are genetically distinct viruses. Infection with a or b produces near identical diseases which are treated similarly. Influenza c is not a clinically important virus & causes mild disease rarely. Influenza a - due to a higher likelihood of genetic shifting & 'mixing' in bird & swine - is the only influenza virus which causes pandemics. Yearly influenza vaccine protects against a & b.

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After how long are the flu viruses detectable in our body?

After how long are the flu viruses detectable in our body?

Depends on Antibody: Usually it is the antibody response that we are measuring when we are trying to determine if a virus is still present. Some types of antibodies tell us if a certain virus was ever present. Then there are some types of antibodies that tell us if the infection are still active or not. But to answer your question flu viruses only last about a couple of days (6-7) in your body if you are healthy.

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Could flu virus mutate every year?

Could flu virus mutate every year?

Yes: This is one of the reasons influenza vaccine has to be reformulated each year.

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How can you stop a flu/cold virus in its tracks?

You can't stop it: You can improve sxs (but not cure it). Tips: sore throat – gargle with warm salt h20 (1/2 tsp salt in 8 oz of water). Get strep test/culture if very sore. Congestion – saline nose drops or netti pot. For anti-inflammatory effect & mobilizing mucus- homemade chicken noodle soup. Hydrate- lots of water/clear broth/ add honey & a small amt. Of lemon juice to chamomile tea. Feveracetaminophen.

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How do I know if my child has the the real flu virus?

How do I know if my child has the the real flu virus?

May be difficult: Rapid influenza testing by nasal swab, viral cultures, or retrospectively by serologic testing. There are many viral infections which can mimic influenza, inclluding parainfluenza, some adenoviruses, and so on and so on. Generally influenza will be active in the community and doctors, having been informed of this by the health departments, will have high indices of suspicion.

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I have a serious flu like cold can this be West Nile virus?

I have a serious flu like cold can this be West Nile virus?

West Nile Signs: It could be as the signs and symptoms can be similar. The questions is more about where you live, your recent activities and any evidence of bites. Armed with this initial information, I recommend contacting a physician to further evaluate you as rapid treatment can prevent long term complications.

Dr. Patricia Foster
279 Doctors shared insights

Valacyclovir (Definition)

Valacyclovir is a herpes viruses agent which is a kind of anti-viral ...Read more


Dr. Daniel Saurborn
283 Doctors shared insights

Valtrex (Definition)

Valtrex is a herpes viruses agent which is a kind of anti-viral ...Read more