Doctor insights on:
If smallpox only affected humans, where did the first person contract it from? Is the virus related to other "pox"? Rickettsial, cow, chicken?
Virus: If they're all named with the same genus because they are related. Chicken pox is a herpesvirus; the rule only works with the latin names. These viruses mutate and gene-swap so that's how they can 'jump species' and change from being zoonotic to affecting humans. ...Read more
Viral: This is a very common type of infection that most of us have been exposed to at some point. It's estimated that up to 92% of sexually active adults have some type of hpv infection (there are over 100 subtypes). Condyloma (warts) are caused by hpv type 6 & 11. Transmission is by touch & is basically the same as a wart on any other part of the body. ...Read moreSee 1 more doctor answer
Yes and no: A small percentage of vaccine recipients can and do break out a week or more after varicella vaccination.This is not the wild chickenpox but a manifestation of the weakened vaccine virus. Most have fewer than a dozen lesions, compared with an average 200-250 with wild chickenpox. Such an event does provide longlasting protection from the wild chickenpox. ...Read more
Herpes: Herpes lives in a sensory nerve cell cluster in the area the nerve supplies. Primary infection occurs in young and persists for life in 15 to 50 percent. It "sleeps" there and may recur at any time--stress, trauma, immune system compromise. If herpes, it typically recurs in one single area--especially lips and may be aborted with early antivirals. But not all "cold sores" are herpes. ...Read more
If i had a current h1n1 flu infection and were given the h1n1 vaccine, will it prevent a future h1n1 infection if i was to be exposed to the virus again after my body clear the first infection?
Nk cells have enzymes that attack foreign, virus infected, or cancerous cells? Is that how they work?
NK cells: Yes, natural killer cells are part of the innate immune system. Unlike other immune cells, they do not have to have prior exposure to an invader in order to attack it. They do release enzymes which essentially poke holes into the cell they are trying to destroy. They release their enzyimes into these holes. The enzymes travel to the center of the cell and cause it to explode, known as apoptosis. ...Read more
The same: A vaccine is a set of proteins that trigger your body to produce antibodies against a certain agent. In this case it is the agent that causes Meningococcal infections. The most serious Meningococcal infection is the one that involves the meninges of the brain. This becomes Meningococcal meningitis. Good antibodies that build up from the vaccine can protect against the meningitis. ...Read moreSee 1 more doctor answer
HPV can cause cancer: Hpv infections an cause genital warts or even cancer, although this isn't likely. Any persistent sores should prompt a visit to a dr. The hpv vaccine can help lower the risks of warts, female cancers (vaginal, vulvar, cervical), male cancers (penis, anus) and oral cancers. ...Read moreSee 1 more doctor answer
Herpes: Recurrent herpetic outbreaks are usually shorter in duration (averaging 7 days), with less severe symptoms and are often preceded by a prodrome of itching or burning in the affected area. Systemic symptoms are usually absent. Most people diagnosed with a first episode of genital herpes can expect to have several (typically four or five) outbreaks (symptomatic recurrences) within a year. ...Read more
Depends: Infectious encephalitis caused by borelia, viruses (yellow fever, hemorrhagic fever viruses), rickettsiae are contagious, but often require the presence of a vector, usually a mosquito or a tick that will transfer the pathogen from the infected person to the healthy one. ...Read moreSee 1 more doctor answer
Is RSV contagious from children to adults to children? We will visit grand child 7 months diagnosed with rsv. After a few days we will then visit other grandchildren ages 5, 3, 1 in another household. Will we be contagious? Can we infect the othe
Yes but.....: RSV is the main cause of the human cold during RSV season.It is a germ that generates poor if any immunity if you catch it, and humans are often reinfected every year or two. It can be spread by droplets (in air) or on your hands.If you catch it you can spread it for days and weeks afterward. It is more worrisome to kids below 16 lb than those that are larger.Good hand washing helps reduce spread ...Read moreSee 3 more doctor answers
No, it will not: Antiviral medications can help to control herpes outbreaks. Melissa officinalis or lemon balm (cream) expedites healing of cold sores. It can reduce healing time by half. Studies also show that regular use can help v recurrences. Brief supplementation with lysine 1, 000mg orally three times a day at the onset, can also hasten healing. Laser treatments are also used to treat cold sores. ...Read more
Oral sex with unknown, continuous 5month low grade fever, lymph nodes, sore throat, 107 da HIV eia negative HIV PCR RNA not detected, what other std?
NOT STD: As you have been told this is not an STD. But, it could be an infectious disease. That list is hundreds of possibilities long and will include testing for lymphoma, leukemia, other blood cell cancers, and all of the possible non-STD infectious diseases. It is time to sign off of the internet and to see your doctor for the appropriate testing or infectious disease consultation. ...Read more
- Talk to a doctor live online for free
- How do i know if my child has the h1n1 virus?
- Prevention of h1n1
- H1n1, rtpcr
- Ask a doctor a question free online
- Influenza a h1n1 pcr
- Influenza h1n1 sintomas
- Influenza h1n1 causas
- H1n1 vaccine and pregnancy
- Talk to a infectious disease specialist online