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Questions tagged [disease-transmission]

Questions regarding how diseases are transmitted, whether between people or from the environment (including animals) to people.

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Is rabies virus infectious outside host?

Can rabies virus remain infectious on environment i.e on soil, grasses, leaves and water? I am just paranoid I may come into contact with rabid animal's saliva without knowing it. So wanted to know ...
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67 views

Why is not possible to get HIV by touching a contaminated surface?

I was wondering if one could get HIV from basically touching a surface which have had viral DNA extract, serum, or blood on it; and then by touching their (bleeding) pimple or acne (or any other area ...
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Can HIV really be transmitted through blood in any other way than needle sharing or blood transfusion?

I have found at least few websites of foundation where they indicate that only one or few cases worldwide were attributed to wound to wound transmission mode. One was during the fight with knife. Is ...
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1answer
38 views

How to clean a second-hand electrical shaver to avoid infections?

I remember a poster campaign advising against sharing razors and shavers because of infection risk with a disease (I think it was a variant of Hepatitis). I no longer find the campaign and don't ...
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1answer
42 views

Transmission of helicobacter pylori

I used spoon of my friend who had h pylori infection. Can it infect me. I shared her ice cream with the spoon that she was using.
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37 views

What diseases could be transmitted skin to skin (massage)?

What kind of diseases one can get from a skin-to-skin interaction such as getting full body massages (without touching intimate parts) assuming a person had mild skin damages that occur after shaving ...
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1answer
593 views

Is it known how often unvaccinated children are contagious with symptom free diseases?

I was looking at the CDC Vaccine Schedule for children, and it says that many of the things kids are vaccinated for may show no symptoms. Do any of those diseases –– mainly haemophilus influenzae, ...
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31 views

Too low level of HIV virus to be infectious?

I just read about a court case where someone was acquitted for "being dangerous to the surrounding" by having unprotected sex when diagnosed with HIV. The reasoning was that since this person was ...
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0answers
18 views

When is HSV-1 most contagious?

It is possible to pass HSV-1 at any time even if your symptoms are currently dormant, but the risk of contagion is higher during outbreaks. When does the risk of contagion return to it's dormant level?...
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1answer
22 views

Chagas disease: transmission

I am reading about Chagas disease. It is not clear for me if the transmission from mother to child can be called vector transmission or not, because I read in wikipedia that: In Chagas-endemic ...
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49 views

Is viral keratitis contagious?

Is viral keratitis contagious? I'm asking, as I'm not getting any authentic material on the net.
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48 views

HPV and only one partner

My girlfriend recently told me that she has diagnosed HPV. The problem is she was virgin. From that moment I had no other partner than she. It does mean that she cheat on me? I know similar issue ...
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1answer
34 views

For varicella zoster(chickenpox), when are vaccination / antiviral drugs effective?

The UK does not routinely vaccinate its citizens against chickenpox though the info website of the chief healthcare provider acknowledges that vaccinations are available and there are also ...
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On the mechanics of chickenpox immunity for newborns and breastmilk antibody transfer

According to my healthcare provider, a newborn should not be affected by chicken pox if it has immunity thanks to his mother having had the infection as a child herself - this immunity is apparently ...
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1answer
322 views

Having sex with someone who's had many sexual partners,

There's someone who I've been getting to know and she's particularly free-spirited and very smart and mature for her age (in college). As our discussions have started to lean more towards us ...
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1answer
73 views

Eradicating HIV

If HIV is spread by intercourse, then it is completely under our control if diagnosed people just don't have sex. Why is that so hard? We could soon eradicate the disease from at least the developed ...
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1answer
49 views

Contagiousness of lip herpes in the work environment?

I just started working in a chemistry lab and found out on my first day that someone in the same lab as I am has lip herpes. I am a habitual nailbiter, and while this would be a great opportunity to ...
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18 views

Droplet Contact or indirect physical contact

I am trying to figure out what kind of transmission ..." non-vectored infectious disease through sneezing on someone " would be. I want to say droplet because its directly on that person, but not ...
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Can I get chickenpox from meeting someone who lives with someone else with chickenpox? [duplicate]

Title mostly says it all. I've never had chickenpox. I was given chickenpox vaccine shots twice, once as an infant, and once at around 12-13 years old. I am now 23 years old. Am I safe? Or should I ...
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167 views

Chances of contracting hook worm in Canada?

Hook worm is contracted through infected soil, feces, etc. If I am correct? Every website says developing countries are more at risk, but how at risk am I in Canada when I walk barefoot on trails and ...
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1answer
671 views

What are the dangers of sitting on a public toilet seat?

Growing up, I was taught to cover public toilets with toilet paper before sitting on them. This was to protect me from diseases left by other users of the toilet. But can one actually get dangerous ...
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1answer
87 views

Can I save road accident victims with my bare hands?

I recently saw a video on a news channel where people were taking selfies and recording video of the victims of a car accident. The victim ended up dying because no one helped him. It got me ...
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19 views

How Close to Fecal Matter is Unhealthy

I hope this is the appropriate place to ask such a question and I've Googled this thought but have come back empty handed so wanted to run it by the stack exchange community. Can I catch any diseases ...
2
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1answer
417 views

Can wearing a mask when sick help fight off infection?

I keep reading that at least in the case of viruses humidifiers and warmer air can kill viruses, especially if you have sinusitis. I was thinking that if you wear a mask you would achieve both higher ...
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1answer
64 views

Can contagious disease transmitted via sharing things?

I wonder is there any chance we can have dangerous contagious disease, such as HIV, herpes, hepatitis, etc via sharing thing with other people? As I go to fitness center, I share the gym equipment, ...
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1answer
403 views

Can viruses be inherited?

In theory, any virus capable of infecting germ cells can plant its genetic load into the sperm/ova that will eventually become offspring. So are most viruses inheritable? Really, if your parents ever ...
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81 views

How long is pneumonia contagious for?

Is Pneumonia contagious? If yes then can anyone please tell me how long it remains contagious?
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Why are lower respiratory infections so prevalent in undeveloped countries?

As you can see here, lower respiratory infections are a major cause of death in undeveloped and developing countries, especially in central Africa. What are the primary causes of lower respiratory ...
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1answer
100 views

Washing hands after going to the washroom to prevent epidemy

There is widespread agreement that one should wash its hands after going to the washroom. However, a large fraction of the population does not wash their hands. These types of signs became fairly ...
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1answer
56 views

A diabetic contact of herpes zoster patient

Should a patient of herpes zoster who successfully take medications for a month (pain and rash disappear) avoid contact with a diabetic patient and what are the precautions when dealing with each ...
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2answers
250 views

Why is Diarrhoea (or, Diarrhea) not classified as a Vector-borne disease?

I was reading that diseases such as Cholera & Typhoid are Vector-borne diseases wherein the Vector transfer the harmful bacteria to contaminate our food/water, causing the disease in humans. By ...
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1answer
196 views

Chance of getting sexual transmitted diseases

What are the chances of getting sexual transmitted diseases (and which) given that: Heterosexual sex Male partner used condom (properly) The condom was NOT damaged during the act
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1answer
336 views

How contagious is glandular fever?

What sort of exposure would be necessary or sufficient for someone to be infected? E.g handshaking, sitting across from someone with the virus for an hour or so, etc etc
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1answer
417 views

Can Helicobacter pylori be transmitted through saliva?

I was wondering if you can get Helicobacter pylori (the bacteria that can cause gastritis and ulcers) by kissing a person, if that person is infected with it?
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0answers
22 views

How is measured the transmission rate of virusses?

I would like to know how is measured the transmission rate of viruses, for example, there is a 'normal' flu, his transmission rate is '1', but for a virus like H1N1 the transmission rate is '0.2' ...
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1answer
190 views

How do you get infected with HIV?

If someone has unprotected sex with a woman who had other sexual partners before will that cause HIV?
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1answer
81 views

Why does the flu only happen in winter?

I can understand that our immune system may be weaker when we are cold (?), but since these viruses live inside a human body which internal temperature is constant over the year, why does the season ...
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2answers
137 views

Can pathogens be transmitted from smelling something?

Long story short, when visiting neighbors the other day, a young child playing outside in the lawn stepped in some fresh animal fecal matter, and not knowing what it was, ended up taking off their ...
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1k views

What are the chances of getting a kidney infection from a tooth infection?

Is it possible for someone to acquire a kidney infection from a tooth infection?
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1answer
5k views

Is E. coli contagious?

I have a girl that I'm seeing. She was just in the hospital about 2 weeks ago with an internal E.coli infection in her kidney (she had the other kidney removed due to cancer). She has been given a ton ...
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2answers
35k views

Can you get a yeast infection in your mouth from oral sex?

I recently had sex with a woman who seems to have had a yeast infection. That's what I thought, because she had lots of white dots in her vagina and my doctor told me that this is a fungus. I've seen ...
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1answer
488 views

Can ingesting a mosquito make you sick?

I just accidentally ate a mosquito. I am afraid, what if the mosquito just drank blood of a HIV infected person, will I get the infection too, or some other disease?
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1answer
58 views

Can I contract chickenpox from my child who just got vaccinated?

My child just got the MMRV vaccine that contains a weakened chickenpox virus. If I never had chickenpox symptoms in my life, can I contract it from him? Would also getting vaccinated help?
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1answer
82 views

Hepatitis B transmission

If a man with hepatitis B has oral sex with a woman (giving or receiving), can the woman get infected?
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1answer
57 views

Infectious chicken pox

My 21 year old son has chicken pox and has been home for a few days now. The spots are just starting to crust over. I work with elderly people but have had chicken pox as a child - should I carry on ...
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1answer
4k views

Is dry urine sterile?

I'm male, and I've noticed that when I urinate, there's sometimes a small amount of splatter which hits my legs and pants. I try to avoid this, but it seems impossible to avoid entirely. Once dry, is ...
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1answer
545 views

What STDs can be transmitted if both parties have no open sores/cuts?

If I recall correctly, Chlamydia, HPV, Gonorrhea, syphilis, and HIV require both parties to have cuts/sores for transmission. More specific questions, assuming no cuts/sores: Possible transmitted ...
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1answer
189 views

If a human is irradiated, how contagious are they?

If a human is exposed to radioactive materials but later they are removed from their body, does the human remain capable of contaminating others? Is there a decay curve for the risk of contagion, ...
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1answer
4k views

What is the likelihood of contracting genital HSV1 through oral sex?

I know genital HSV1 can be contracted from unprotected oral sex, but what is the actual likelihood? For example, what is the likelihood when the partner is asymptomatic vs symptomatic, and what is ...
9
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1answer
584 views

How long is infectious mononucleosis contagious?

The English Wikipedia article about infectious mononucleosis says about transmission: The length of time that an individual remains contagious is unclear, but the chances of passing the illness to ...