The study of diseases, including their causes and effects.

learn more… | top users | synonyms (1)

2
votes
1answer
16 views

Do distinctions between dry, tickly and chesty coughs have any medical basis?

Background At least in Britain you normally come across distinct kinds of cough medicine "chesty", "dry" and "tickly". Questions Are "chesty", "dry" and "tickly" coughs always due to ...
0
votes
1answer
21 views

Would humans eventually evolve to fight off fatal diseases if we didn't treat/vaccinate for them? [duplicate]

I am definitely pro vaccination, and the question is a bit morbid because people would die, but assuming that we didn't treat or vaccinate people for fatal diseases such as Ebola or the black death, ...
2
votes
2answers
39 views

Hydrophobia Outside of Rabies?

RELATED: Why does rabies cause hydrophobia? Agony, Hydrophobia and viruses in the light of evolutionary principles Has hydrophobia been found outside of rabies? I have only seen it ...
2
votes
1answer
22 views

Action of Ebola Viruses

This video suggests that the first cell to be the victim of viral infection of ebola is the dendritic cell which acts as the leader of immune system cells.But I am unable to understand how the ...
1
vote
0answers
19 views

How to define the four haematological subgroup? [closed]

There are four main haematological subgroups, cross-reactive material-positive (crm+), cross-reactive material-negative (crm-), crm-reduced (crmR) and inhibitor patients. But what kind of substance ...
2
votes
2answers
37 views

regarding genetic disorders related to protein production

I am not completely familiar with biology, but i had a genetics course in college along with practicals. Forgive me if there is something wrong with my question. Is there a genetic disease which ...
0
votes
0answers
15 views

Congenital blindness due to retinitis pigmentosa - does it exist?

Retinitis pigmentosa (RP) patients typically become blind after a period of years in which their eye sight slowly deteriorates. Generally they develop night-blindness first, then tunnel vision, after ...
2
votes
1answer
31 views

What are the features on a microscope one needs in order to do lab work?

By lab work I mean urinalysis, blood work(live as well), fecals, cytologies, histologies and all other. I have read(partly) a book(from 2002) on lab diagnostics and the author did not mention ...
1
vote
0answers
45 views

Development of contagiousness after death [closed]

Thought experiment: In an unfortunate accident in the future my heart will stop exactly at 0:00:00 due to a cause which kills me instantly but leaves my body intact (poison, electric shock, whatever). ...
2
votes
1answer
76 views

A subtle test for color-blindness [closed]

Is there a test method of proving a person being color-blind, without letting the test subject know, that he/she is being tested? E.g. showing the person cards with colored dots like depicted here is ...
7
votes
2answers
4k views

Reasons why people say that AIDS/HIV doesn't exist

It's been recurrent when I hear people saying that AIDS doesn't exist. When I ask why, they give weird reasons like HIV is a virus created to control economy and to develop medicine, etc. Also when I ...
4
votes
2answers
121 views

Is ebola non-contagious until symptoms appear? Why?

There's been a lot of talk lately about the man who recently came down with ebola in Dallas, Texas. While I live elsewhere, I keep hearing quotes from CDC and state officials that ebola is not ...
4
votes
1answer
57 views

Why is the ebola virus so intense now?

So i'm looking into the ebola crisis and it seems the death toll is really getting crazy. I understand that it's a cytomegalovirus and that it basically overwhelms the immune system due to it's size ...
0
votes
1answer
26 views

How do colds and flu not infinitely recur?

I'm in my third week of university, and a large number of people I know, including myself, still have "fresher's flu", which is probably just a cold and a cough. My lectures are constantly punctuated ...
1
vote
0answers
20 views

How do we determine a disease's incubation period?

There was a suspected case of Ebola in France, which was later dismissed, since the suspect lastly came into contact with a potentially contaminated person more than 21 days before, which is the ...
1
vote
0answers
22 views

Does drinking spoiled milk that has been boiled upset the GI tract?

With water, boiling will kill harmful pathogens. Does this also hold true for milk ? If it does not, what in the milk will continue to cause gatrointestinal distress ? Shouldn't boiling kill the ...
3
votes
1answer
56 views

How many times can a human get chicken pox?

How many times can a human get chicken pox? For example: I got chicken pox, and recovered. If I was infected with HIV, and I am exposed to chicken pox again, can it infect me second time?, According ...
1
vote
0answers
49 views

Food which contains HIV, will it give me HIV if i consume that food? [closed]

Food which contains HIV, will it give me HIV if i consume that food? my question is: if i eat food which is infected with HIV, so will i get HIV? i find causes of HIV are: HIV can be transferred from ...
1
vote
1answer
77 views

What is the difference between clinical and non-clinical depression, and is there a term for different severity of the bipolar disorder?

I was looking for a term which describes a bipolar disorder of lesser severity. I know from experience from someone I know well, what a very severe case of the bipolar disorder looks like, when an ...
2
votes
0answers
51 views

Can diseases be transmitted wirelessly? [closed]

According to the recent research about Electromagnetic Signals from Bacterial DNA (A. Widom, J. Swain, Y. N. Srivastava, S. Sivasubramanian) it seems there is a possibility of a "wireless" version of ...
9
votes
2answers
2k views

Why would taking antibiotics increase stamina and energy?

I often hear that people who are taking antibiotics experience wild fluctuations between feeling full of energy and completely alert but soon after feeling impossibly fatigued and sick. Does this ...
2
votes
2answers
217 views

Why does a blood test show ethanol when no alcohol was consumed?

Why would ethanol show up in a blood test if a person had not been drinking alcohol in many years. What are other reasons for showing ethanol?
8
votes
3answers
1k views

Why is the current Ebola outbreak different from previous outbreaks?

I don't know if this question has an answer at this time, but I would like to know if there is some biological reason why the current Ebola outbreak is so much more complicated and widespread than in ...
2
votes
1answer
126 views

In scuba diving, are nitrogen narcosis and high pressure nervous syndrome the same thing?

In training for scuba diving, they tell you that when you're bellow 100 ft or so you have to watch out for changes in mental state that resemble drunkenness. The cause of these mental disturbances is ...
2
votes
0answers
21 views

Subtypes of Acute myeloid leukemia

I am a computer scientist with no biological background and working on analyzing lab results of patients with Acute myeloid leukemia. They have been tagged with following subtypes of AML: AML with ...
3
votes
2answers
170 views

Standard Process Identification of New Disease outbreak Causing Pathogen

Is the any standard procedure or protocol followed for the identification of cause of new disease outbreak(or new pathogen)? Is it different for different countries?
8
votes
1answer
215 views

Can a bacteriophage be used to treat bacterial diseases?

Some bacteriophages reproduce using the lytic cycle which ends with the destruction of the host bacterial cell. I was wondering if theoretically this could be used theraputically to treat bacterial ...
1
vote
1answer
26 views

What are the movement mechanisms of thrombus?

I am thinking how thrombus (veins, arteries and heart) can move. Secondary mechanisms come to my mind only: some enzyme which lyses it, probably adhesion mechanism. Blood circulation (flow rate) ...
1
vote
2answers
76 views

Can a fungus become resistant to a chemical such as Potassium Permanganate?

A friend used potassium permanganate solution to treat tinea on the hands/feet but after some initial success, the tinea seems to be making a comeback. Could the fungus develop resistance to potassium ...
3
votes
1answer
74 views

how can a pseudo coelomate like ascaris lay 200k eggs in a single day

as per this site the dimensions of eggs of ascaris lumbricoides are 78-105 microns and as it is shown in the pic down here only half of the body cavity would be used for storage of all the stages of ...
2
votes
1answer
354 views

Why do humans seem so much more prone to disease than animals? [closed]

It seems like when we observe animals in the wild, the occurrence of noticeable disease in adult individuals is much lower than in humans. Why? There are a number of reasons that this could happen, ...
3
votes
1answer
131 views

Why doesn't Diabetes cause death by starvation?

The main cause for diabetes is lack of insulin in the body. Insulin is the hormone that allows body cells to absorb glucose from the blood. With out insulin, the body cells can't get glucose from the ...
4
votes
1answer
69 views

Why do we feel cold on having fever?

Why do we feel terribly cold on catching fever of any sort, however our body becomes hotter? Why is it that a rise in temperature makes the sufferer feel colder? Also, sweating symbolises betterment ...
7
votes
1answer
125 views

Pharmacologically, can tricyclic antidepressants have a side-effect profile similar to neuroleptics?

Torticollis (wryneck, cervical dystonia) is a neurologic movement disorder causing involuntary muscle spasms in the neck. Often, neuroleptics can cause such a side effect. I'm wondering if this ...
4
votes
2answers
440 views

Does making yogurt from non-pasteurized milk work against possible disease bacteria?

In the past, when there was no pasteurization, could making yogurt from milk lower the chance of getting infected by bovine tuberculosis (or other diseases from infected milk)? For example, would ...
3
votes
1answer
38 views

What is the reason behind more severe proteinuria in nephrotic syndrome than in nephritic syndrome?

Why is there less protein loss via urine in case of nephritic syndrome than in case of nephrotic syndrome?
5
votes
1answer
154 views

Why is there no cure for Dandruff?

It looks like a simple problem, affecting almost half of the population at the post-pubertal age and of any gender and ethnicity [wikipedia]. What is so complex about finding a cure? Also, if you know ...
5
votes
3answers
1k views

Why are antibiotics prescribed with a viral infection like a cold?

I've heard both ways; people going to the doctor for a cold and then getting a prescription for antibiotics and those that go to the doctor and told they have ride it out because it's a viral ...
-2
votes
2answers
79 views

Why it is rare for person to get infected with two Pathogens?

Why is it rare for a person to have 2 (or more) infectious diseases (for example: Flu & Cold together at the same time)? Although it's rare, it happens when the immune system is weak (e.g when ...
1
vote
0answers
29 views

Plateletpheresis for hemophilia

Plateletpheresis is seperation of platelets from whole blood and putting the leukocytes and erythrocytes back into the blood. If the person donating platelets does not have hemophilia than could a ...
13
votes
3answers
288 views

Can plants get cancer?

I can't think of any reason why plants wouldn't be able to get cancer, but I've never heard of a plant growing a tumor. I've also never seen a plant with a noticeable abnormal growth. Can plants get ...
2
votes
0answers
81 views

Is there an evolutionary explanation for depression?

Evolutionarily speaking, depression (both clinical depression and temporary sadness) is a curious phenomenon. Since being depressed is likely to increase the chance of a person with it to commit ...
1
vote
2answers
3k views

Why is weight gain a symptom of Cushing's Syndrome?

Cushing's syndrome results from increased levels of cortisol in the body. Cortisol as I understand it however, promotes the breakdown of glycogen and amino-acids in the process of gluconeogenesis, to ...
0
votes
1answer
16 views

Can pulmonary infarction be asymptomatic?

I think it can because there are many parts in lungs. Like for some COPD patients. However, I am not sure if COPD patients can have infarction. Lungs have parallel circulation. Red infarct is ...
0
votes
1answer
26 views

Are there any forms of heart failure where cell size decreases?

I think hypertrophy happens in most of the cases. However, I am not sure if hypertrophy always happens. I started to think about wet lungs (pulmonary reason for the left-sided heart failure). Can the ...
2
votes
1answer
32 views

What can thrombosis lead to?

I am thinking this question. Thrombosis can result in organisation of thrombus, sepsis thromboembolism, fibrinoid swelling adiposity. I fibrinoid swelling (edema) (4) can occur. Also, I think (3) ...
3
votes
1answer
132 views

Why basement membrane thickens in diabetes mellitus?

Untreated diabetes mellitus may lead to blindness and kidney failure because the basement membrane of small blood vessels in these organs thickens due to increased production of collagen and laminin. ...
2
votes
1answer
76 views

Do any nonhuman species have effective ebola immunity?

I've read that ebola is an effective killer in humans because it has the ability to interrupt dendritic cells from manufacturing proteins that cause the immune system to destroy the dendritic cells ...
2
votes
3answers
903 views

How do a viruses or bacteria survive outside the body long enough to spread?

Say I cough on my table, then someone else touches it and picks up something I've got... how is it that these things can live outside the body, how long can they manage it, and how long is generally ...
1
vote
1answer
20 views

Is there a Lyme disease vaccine?

Each Spring, our local health unit begins its campaign of Lyme disease and tick-bite awareness. I was wondering if there has ever been a vaccine available, and if so, what antigen does it target?