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Infectious Diseases

Infectious diseases or communicable diseases arise from illnesses caused by fungi, viruses, protozoa, bacteria or parasites. These infections can be transmitted through body fluids, airborne inhalation and contaminated foods or objects.

Asked in Conditions and Diseases, Cold and Flu, Infectious Diseases, Immune System

Why do you get Muscle ache with flu?

Muscle aches caused by a flu virus cannot be accounted for by fluid loss from excretions and emesis alone, because often muscle aches are the first sign of the flu, long before vomiting or diarrhea may ever occur (and they do not occur in most flu infected folk). Instead, it is the increasing body temperature (the fever that is one of the body's most effective responses for killing off heat-susceptible invaders) that causes an increase in water usage at the cellular level....
Asked in Health, Cold and Flu, Infectious Diseases, Viruses (biological)

How can you protect yourself and others from viruses and flu?

How to avoid the spread of colds, flu, and other viral infections: THE SHORT ANSWER: For the flu, get a vaccination (flu shot or jab). See more below in the longer answer. For other viral infections such as measles, mumps, etc. there are also vaccinations that should be used. To avoid HIV/AIDS, or other viral sexually transmitted diseases and infections, always use a condom. See below for more. For a common cold there are no vaccinations, so you'll need to avoid anyone sick, stay at...
Asked in Cold and Flu, Infectious Diseases, Swine Flu (H1N1/09)

Can you catch the same flu twice?

If you are exposed to an identical version of the flu that you had previously after you have recovered fully from it the first time, then your body should have developed immunity to all genetically identical kinds of flu and you would not get it a second time. However, the flu can change by mutations and if it does change enough that the immune system no longer sees it as identical, then you would not have immunity to the mutated strain. This...
Asked in Infectious Diseases, Microbiology, Bacteria

What would be the appearance of the gram positive bacterium if you forget to counterstain with safranin?

If you forget to counter stain color of Gram positive would be violet or blue . The above answer is good. Here is why the above answer is good. Yes it would still be Violet or blue. Gram positive bacteria are gram positive, because it holds onto the crystal violet stain that washes out of gram negative bacteria. Counterstaining with safranian turns gram negative bacteria pink to red only because the crystal violet has washed out of the gram negative. The lighter safranian has...
Asked in Conditions and Diseases, Cold and Flu, Infectious Diseases

How is the common cold spread?

You are most likely to get a cold if someone sneezes or coughs over you or near you. To avoid the spread this way, you need to stay at least a 6 foot diameter distance from the person. Cold viruses are in the air on respiratory droplets for a short time after a cough or sneeze. Although they can travel in the air for only a matter of seconds and for only about a six foot diameter around the person who...
Asked in Infectious Diseases, Mosquitoes, Malaria

How do mosquitoes give you malaria?

Mosquitoes bite you to suck the blood. The female require the same for ovulation. In the process, the insect at times bite the patient of malaria. The malaria parasite enters the stomach of the insect. Growth of the parasite takes place there. The parasite travels to the salivary gland of the insect. When the mosquito bites the next victim, the parasites enters the body of the victim. They go to liver. They multiply there. Then the parasites enter the blood stream. They...
Asked in Conditions and Diseases, Cold and Flu, Oral Health and Dental Care, Infectious Diseases

Why does your teeth hurt when you have a common cold?

The very tips of the roots of your top teeth sit very close to and sometimes in your sinus cavity. When you have a cold and your sinuses are blocked and inflammed it put pressure on the teeth which can be very sore. It does not cause any long term damage to the teeth but it can feel just like a tooth ache. ...
Asked in Infectious Diseases, Medical Definitions and Word Differences

What is a example of a general infection?

General infections can be divided into two categories, namely systemic infection and local infection, The cause of a systemic infection comprises of bacteria or virus. The main characteristic of such an infection is that it affects the bloodstream of an individual commonly spread from the genetal area. A local infection can be explained as that infection, which does not affect the whole body of an individual. Rather, it is limited to a specific portion of the body. It does not attack the bloodstream...
Asked in Infectious Diseases, Malaria

What type of microbe causes malaria?

'Protozoans' is the term usually used to talk about the protists that cause malaria in humans or in other vertebrate erythrocytes. Protozoa belong to a large group of eukaryotic organisms that are single-celled. These are usually microscopic and include amoeba, ciliates, flagellates and sporozoans. In malaria, the protozoans can also be called 'malaria parasites.' Transmission: The sporozoan protozoa that cause malaria are transmitted through a mosquito feeding upon the blood of an infected host and ingesting a number of these parasites. The protozoa develop within the...
Asked in Cold and Flu, Infectious Diseases, Stomach Flu

Is the stomach flu airborne?

It is airborne after someone vomits or has diarrhea. Because it a virus, it can be on surfaces or in undercooked food. ...
Asked in Conditions and Diseases, Infectious Diseases, Lungs

Is angina contagious?

Only if the people who get it have been indulging in high fat food and lack of exercise together. Angina is pain caused by narrowing of arteries around the heart, so no. ...
Asked in Men's Health, Conditions and Diseases, Infectious Diseases

Why does a doctor hold your testicles while you cough?

The reason that a doctor performs this examination is to check for a Varicocele. A Varicocele is a swollen varicose vein that may be in the scrotum and is usually on the left side. The physician checks for a hernia, which is when a portion of the intestine decends into the pubic area, and possibly into the testes. When you cough, your abdomen expands/contracts, therefore moving the intestine if it has descended. The doctor can feel this, and determine whether or not...
Asked in Health, Conditions and Diseases, Infectious Diseases

Is amoebic dysentery a fungus?

Amoebic dysentery (as the name suggests) is caused by a micro-organism, called an amoeba, which is found in contaminated and stagnant water. ...
Asked in Infectious Diseases, Microbiology, Vaccinations

How have vaccines changed the world?

They have prevented millions of deaths and unnecessary suffering, and they have helped to eradicate a few diseases. ...
Asked in Infectious Diseases, Mosquitoes

What diseases are transmitted by mosquitoes?

Some diseases transmitted by mosquitoes are: * Dengue fever * malaria * yellow fever * West Nile virus * Eastern Equine Encephalitis In fact, that makes mosquitoes the deadliest living thing on this earth, totaling the most deaths a year. you can get: dengue fever from the aedes mosquito Yellow fever from the culex mosquito malaria from the anopheles West Nile Virus and malaria are diseases spread by mosquitoes. And you can also get Yellow Fever!! Malaria,Dengue Fever,Yellow Fever,Rift Valley Fever,Encephalitis (West Nile Virus,etc.) Malaria and West Nile virus Malaria malaria There...
Asked in Cold and Flu, Infectious Diseases, Swine Flu (H1N1/09), Viruses (biological)

Can you get the flu twice in the same season?

Catching Flu Twice in a Season Yes, you can. But, it would have to be a different strain or type of the influenza-virus than you previously had (if you are otherwise healthy and have a well-functioning immune system). You would need to be exposed to a different flu virus to get it a second time because your body will have created antibodies to destroy that particular flu virus the first time you had it, and a second exposure that soon should not be...
Asked in Conditions and Diseases, Infectious Diseases

Can you go swimming with a fungal infection?

You can go swimming with a fungal infection, However, because the pool attendants are not going to inspect you or your fungal infection before you enter the water it is up to you to get it sorted out before taking part in such activities, go and see your doctor for some treatment, it is very contagious, and it is not very sporting of you to subject the public in general to this condition. ...
Asked in Cold and Flu, Medication and Drugs, Infectious Diseases, Antibiotics, Swine Flu (H1N1/09), Tamiflu

Is Tamiflu an antibiotic?

No. Tamiflu is an antiviral that makes it harder for the flu virus to spread within the body. Antibiotics fight bacteria which would be useless on the flu which is a virus not a bacteria. ...
Asked in Cold and Flu, Infectious Diseases, Microbiology, Immune System

What remains in the body after an immune battle?

Your body has different ways to act, depending on the type of pathogen. Many extracellular pathogens get attacked by antibodies, witch stick to the surface of the pathogen and can prevent the uptake of nutrients or from attaching to cells of your body. In many cases these antibodies also facilitate the uptake of pathogens by macrophages, who will digest them. In both cases the pathogen will die and thus be inactivated. The remains can be broken down in your body to serve as...
Asked in Conditions and Diseases, Infectious Diseases

Can a virus cause myalgia for 3 months?

Several years ago, I developed joint aches and pains for several months following a parvo-virus infection. One of my children (a toddler at the time) had 5th's Disease and my doctor was astute enough to test me for parvo, which is the virus that causes this disease in children. I did feel better eventually, but it took at least 6-9 months I believe. ...
Asked in Infectious Diseases, Laboratory Testing, Blood

What is an anti-DNase-B test?

detects antigens produced by group A strep, and is elevated in most patients with rheumatic fever and poststreptococcal glomerulonephritis. ...
Asked in Cold and Flu, Infectious Diseases, Viruses (biological)

When are you most contagious when you have a cold?

Adults are contagious one or two days before symptoms of the common cold start and approximately a week after. Children can be contagious even longer, as much as two weeks after symptoms have started. You are most contagious earlier in your illness rather than later. Some people can be infected with a common cold virus and have no symptoms, but still spread the virus to others. See the related links section below for a link to more information. ...
Asked in Health, Conditions and Diseases, Infectious Diseases, Microbiology, Measles

Can you get the measles twice in your life time?

No,the person who has once caught measles has the antibodies against measles viruses. When a person has caught measles th T type lymphocytes detect the type of virus and then the B type lymphocytes produce antibodies for the viruses of maesles.Antibodies stick with these viruses and destroy them. This person can not get measles again in life because the antibodies against measeles are already produced for prevntion by catching measles once. These antibodies are memory cell for this specific type of viruses. ...