Questions tagged [infectious-diseases]

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33
votes
5answers
14k views

Does COVID-19 have a case fatality rate of 41%? Is this formula correct?

According to the data on the Johns Hopkins Coronavirus Tracker, as of 3rd February 2020 there were 17491 confirmed cases of COVID-19 globally, 536 total recoveries and 362 deaths. From my non-expert ...
22
votes
3answers
8k views

Father gets chickenpox, but doesn't infect his two children. How is this possible?

My brother in law got chickenpox, yet somehow he didn't infect my two nephews, even though they are living together. According to wikipedia, varicella has an infection rate of 90%: Varicella is ...
15
votes
2answers
5k views

A cheap and easy inactivated vaccine for COVID-19

Suppose a person with COVID-19 coughs into a bag. Let the bag sit in the sun for, say, 72 hours -- so as to make the virus inactive. Could a healthy person breathe in the inactivated virus from the ...
15
votes
3answers
5k views

If a SARS-CoV-2 asymptomatic infected individual is exposed to a high viral load, could they develop COVID-19 disease?

I would add my own research if I could to respect site rules, but I can't. There are no studies on SARS-CoV-2, all I can find is for SARS-CoV-1 and some Chinese information based studies. My ...
11
votes
2answers
1k views

Laptops in the dark and miscalculating bats: how dangerous is that for rabies?

A few nights ago, I was using my laptop outside in the dark. Some moths and other insects were flying around in the light it was emitting, but unfortunately I didn't think anything about this from a ...
10
votes
1answer
1k views

I have natural immunity to Hepatitis B. Do I pose risk to others?

Some time ago I was rejected as donor and received following rejection letter: Just wanted to inform you that there was a positive infectious disease result for Hepatitis B. Unfortunately, we ...
8
votes
1answer
123 views

Is there evidence that the over-avoidance of germs weakens our immune system?

Is there evidence that the over-avoidance of germs weakens our immune system? Or vice versa: Does the under-avoidance of germs strengthen our immune system? For some reason I hold the opinion that ...
8
votes
1answer
196 views

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

I was wondering if one could get HIV from basically touching a surface which has had viral DNA extract, serum, or blood on it; and then touching their (bleeding) pimple or acne, or any other open area ...
7
votes
2answers
4k views

Tuberculosis: Lung scarring and weight gain

I have a few questions regarding tuberculosis: If a person is cured of Tuberculosis, is it compulsory for all patients effected by Tb to have a patch/scar on their lung? (references for patch) ...
7
votes
1answer
72 views

How can there be a level of HIV viral load that will make infecting others impossible?

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 ...
7
votes
1answer
145 views

Is a nightly curfew an effective intervention strategy for limiting the spread of an infectious disease?

The governing bodies of several geographic areas hit by disease outbreaks will sometimes impose a nightly curfew on their citizens, restricting or limiting the ability of their citizens from going ...
6
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3answers
2k views

Does bleach have to be diluted to be more effective to kill virus?

This page Bleach claims Bleach is more effective at killing germs when diluted than when used straight out of the bottle. this other page (Spanish) Alcohol and Bleach are more effective against ...
6
votes
2answers
232 views

What diseases can be spread by mosquitos?

I heard that the chance of contracting HIV from mosquitos is highly improbable, but I'm wondering about other incurable, chronic, or crippling diseases. I know malaria and the west nile virus can be ...
5
votes
1answer
142 views

Why are antibodies not used as treatments for infectious diseases?

It seems like human monoclonal antibodies would be the ideal treatment for any serious infectious disease. Unlike vaccines, they don't depend on having the immune system recognize the right epitope, ...
5
votes
1answer
67 views

Does being infected protect one from further infection?

Does being infected protect one from further infection? Intuition for why it could be the case When one catch an infective disease, its immune system becomes more active which could eventually also ...
4
votes
1answer
56 views

How do you distinguish between “cure” and “recovery” in terms of medical terminology?

​‎I hear a lot of people using the words "cure" and "recovery" interchangeably. Are these two words interchangable in epidemiology? What's the difference between these two in terms of medical ...
4
votes
1answer
84 views

Is there scientific evidence that spacing out vaccines have any positive effects?

There are parents and doctors that agree to spread out their kids' shots. Supposedly it's easier on the baby (some babies experience fever or other ill reactions to vaccination). But I had a thought ...
4
votes
1answer
35 views

What receptors are targeted by the seasonal coronaviruses that primarily present as winter colds?

We know that SARS-CoV-2 appears to mainly attack animal cells by the ACE2 receptor, MERS-CoV by the DPP-4 receptor, and SARS-CoV also by the ACE2 receptor. Do we know what receptors are targeted by ...
4
votes
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 ...
4
votes
1answer
140 views

Will everyone get the COVID-19?

There is a Ben Shapiro tweet that says: For a variety of reasons, many Americans seem to think that "flattening the curve" means that fewer Americans will get covid-19 total. This is inaccurate....
4
votes
1answer
315 views

Can coronaviruses be transmitted via banknotes?

When possible I avoid paying by cash and use contactless payments as much as I can, especially as of late. However, some outlets won't take card payments so cash exchange is inevitable. I am worried ...
4
votes
1answer
85 views

How does variance in pH affect Candida Albicans?

This is a topic on which I have observed similar arguments lead to precisely opposite conclusions. Some people (health professionals/enthusiasts) claim that Candida Albicans (and similar species) ...
4
votes
1answer
56 views

Do Western Blot 'false negatives' eventually produce positives?

I've heard again and again that the Western Blot test, used to detect the presence of Lyme Disease, often produces false negatives. But I would suspect that at some point, whatever it is that Lyme ...
4
votes
1answer
95 views

Is there a standard projection (or ensemble of proyections) about whether a second wave of COVID-19 will occur?

Several countries and states are leaving or have partially left the lockdown and, with constraints, are recovering economical activity after getting hit by the covid-19 crisis. WHO has warned that ...
4
votes
1answer
639 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 ...
3
votes
3answers
2k views

Are motorcycle helmets effective in preventing Corona?

Can a full-head helmet with the visor closed prevent getting infected by the Corona virus during a casual interaction with a carrier? For example, when buying something at a store or discussing ...
3
votes
1answer
1k 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?
3
votes
3answers
79 views

Is it possible for humans to be resistant to certain viral infections without having specific antibodies in their blood?

Popular understanding of how viruses work split immunity into four categories: Virus doesn't affect humans at all No immunity - will get worst possible infection, seems to be the case with COVID-19 ...
3
votes
1answer
44 views

What is daily sedation interruption for ventilated patients?

I was reading about ventilator bundle here and came across this term called Daily Sedation Interruption. Does this term mean break in giving the sedation drugs? How can this help in reducing the ...
3
votes
1answer
37 views

Have there been any studies on how long COVID-19 remains infectious on various types of cloth?

I was thinking common items like wool and cotton clothing. Has any one discovered yet how long COVID-19 remains infectious on clothing? I have seen the usual items such as paper boxs, stainless ...
3
votes
1answer
72 views

What are the actual symptoms of the common cold? [duplicate]

Everyone knows (and passionately hates) the runny nose, coughing, sneezing, aching/sore joints, and the drowsiness associated with the cold. But these symptoms are just the body trying to get rid of ...
3
votes
1answer
68 views

What fraction health care workers contract COVID-19?

What fraction of health care workers contract COVID-19? Does anyone know of empirical evidence? Ideally, I’m looking for a reference to a study involving type of work, e.g., ER in close contact vs. ...
3
votes
0answers
70 views

What clinical presentations are you seeing in Covid-19?

Many of us have yet to see a case. What is your personal experience?
3
votes
2answers
45 views

Multidrug treatment to prevent evolution of resistance

I was just reading an article in PLOS Medicine on the treatment of multidrug resistant TB. They suggest that treatments are more effective if a large number (more than 5) treatments are used ...
2
votes
2answers
108 views

Does wearing gloves help against being infected with COVID-19?

Walking around town I see quite a few people wearing gloves in addition to a mask. But is this actually useful? COVID-19 does not transmit via the skin, so you don't need to protect your hands per se. ...
2
votes
2answers
243 views

Are any infectious diseases 100% fatal?

I know rabies was once considered 100% fatal, but now has some survivors due to the Milwaukee protocol. Are there any infectious diseases that have a 100% mortality rate?
2
votes
2answers
48 views

How useful are incubation periods when making a diagnosis of an infectious disease?

Incubation periods are one of the many facts that we are expected to learn in medical school. However, I wonder how often they are used in diagnosing an infection because I do not think patients have ...
2
votes
1answer
701 views

Disinfecting laundry — that of a likely COVID patient, or of any other possibly-infectious individual

Clothing can probably spread fungal infections (e.g. athlete's foot) from person to person. There's not a lot of evidence that clothing can spread bacterial infections. But Bloomfield et al. quote ...
2
votes
1answer
52 views

Is the SARS-CoV-2 that causes COVID-19 the only known virus that enters the cells via the ACE2 receptors?

I am just curious if the virus is unique in the sense that it enters the ACE2 receptors in the human body and kills the cell. This receptor is located over the entire body. Is this the only virus ...
2
votes
1answer
51 views

Is it helpful for the average citizen (non medical professionals) to wear gloves and disinfect them instead of disinfecting the bare hands?

In the last months I have seen lots of articles about wearing masks and gloves to prevent the infecting yourself or others. In the case of the masks this is quite clear that we should wear them, but ...
2
votes
1answer
49 views

How is COVID-19 transmission tracked with any accuracy?

I saw this article: New study finds few cases of outdoor transmission of coronavirus in China (and study it is based on). I don't have a science or medical background so maybe this is obvious but how ...
2
votes
1answer
43 views

Do patients with VAE stay in ICU for longer time?

I was reading online that people when put in ICU under mechanical ventilation, can develop Ventilated Associated Events. What I would like to know is: does the stay in ICU increase for people who ...
2
votes
1answer
53 views

Are there viruses which can spread from humans to animals, but cannot spread from animals to humans? [closed]

It had already been proven that felines can be infected with COVID-19 from exposure to infected humans. However authorities are currently saying that there isn't evidence of the opposite happening - ...
2
votes
0answers
42 views

Can having other coronaviruses like HCoV-OC43 give positive results when testing for SARS-CoV-2? [closed]

Is it possible that a person having coronaviruses other than SARS-CoV-2 test positive for SARS-CoV-2 in rapid (antibody testing kits) as well as RT PCR tests? Searching around the internet didn't ...
1
vote
2answers
1k views

Can the Coronavirus be spread via public toilet seats?

I would like to know if it has been proven or disproven that the Coronavirus/COVID-19 can be spread via public toilet seats? I am thinking that perhaps I should always carry around hand sanitizer ...
1
vote
2answers
239 views

COVID-19, disinfecting bike-share bikes (or rental bikes), and safely using them

I don't own a working bike, but I do have a bike-sharing system membership. My city's bike-sharing system has many stations. I can borrow a bike and ride it to any other station. There's currently ...
1
vote
1answer
93 views

What is the distance the COVID-19 virus can travel in the air out of doors and remain infectious for someone breathing the same air?

I edited my question after doing some research. I also edited the question to include phrase "out of door". When indoors the risk is increased considerable with stale air or air that has ...
1
vote
2answers
120 views

Why recovered patients develop lung disease due Covid-19?

In this link https://www.dw.com/en/covid-19-recovered-patients-have-partially-reduced-lung-function/a-52859671 we can see Now researchers in Hong Kong have said that recovered coronavirus patients ...
1
vote
1answer
104 views

If someone catches COVID-19 in a country where the number of deaths and new infections are slowing, would their symptoms be milder?

If someone happens to catch COVID-19 when we're on the other side of the curves -- when deaths and new infections are slowing -- would their symptoms somehow be less severe? A milder fever? A ...
1
vote
2answers
113 views

Is it possible to get Covid-19 and have 0 symptoms along the complete journey and hence cure by yourself without knowing?

In this link, in the section How long is it between when a person is exposed to the virus and when they start showing symptoms? mentions Recently published research found that on average, the time ...