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Doctor insights on: What Causes Sars

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Dr. William Walsh
51 doctors shared insights

Severe Acute Respiratory Syndrome (Sars) (Definition)

A severe viral respiratory illness. It is contagious, and may be life-threatening. Common symptoms include cough, trouble breathing, and high fever. ...Read more


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What causes the norovirus?

What causes the norovirus?

Transmission: Noroviruses are in the Caliciviridae family of viruses & cause the most acute gastroenteritis in the US. Per Foodsafety.gov: “People who are infected can spread it directly to other people, or can contaminate food or drinks they prepare for other people. The virus can also survive on surfaces that have been contaminated with the virus or be spread through contact with an infected person. ...Read more

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What causes rabies?

What causes rabies?

The rabies virus: Which is usually spread from the bite of an infected animal, such as a dog, cat, skunk, fox or bat. ...Read more

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What causes Avian Flu?

What causes Avian Flu?

Influenza virus: There are many strains (family members) of influenza virus all over the world. Some strains affect animals and others humans. When a strain that "normally" infects animals develops the ability to infect humans, that is potentially dangerous because humans may have never had to fight off (become immune to) that strain. The "avian flu strains" come from birds. Swine flu strains came from pigs. ...Read more

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What causes typhoid?

What causes typhoid?

A bacterial disease: Usually typhoid fever refers to a bacterial infection due to Salmonella typhi. But it can be confused with typhus: infection due to a special bacterial type called Rickettsia, which is an intracellular parasite. Both are common with poor sanitary practices, including unsafe water supply and drainage systems. See the difference here: http://tinyurl.com/csnxwt4 & http://tinyurl.com/lj9eewt ...Read more

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What causes typhus?

What causes typhus?

Rickettsia: There are different types of typhus, each transmitted by different arthropods. Epidemic typhus spread by body (clothing) lice, endemic (murine) typhus spread by fleas, scrub typhus spread by mites. ...Read more

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What causes diphtheria?

What causes diphtheria?

C.diphtheriae strain: The germ corynebacterium diphtheriae is a bacteria that has a toxic strain that uses humans as it's only reservoir. It produces a variety of enzymes that allow it to penetrate and destroy cells or have toxic effects on the heart, kidneys & nerves. ...Read more

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What causes croup?

What causes croup?

It's a virus.: Croup is caused by a virus. Most commonly, the parainfluenza virus. This virus infects the upper respiratory tract, more specifically, the larynx (voice box) and trachea (wind pipe). This is why children with croup end up with a hoarse voice and the telltale barking cough. Cases of croup peak in the fall and winter and are generally most common in children ages 3 months to 3 years. ...Read more

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What causes an influenza epidemic?

What causes an influenza epidemic?

Epidemic/ pandemic: Per the CDC "An influenza pandemic can occur when a non-human (novel) influenza virus gains the ability for efficient and sustained human-to-human transmission and then spreads globally. " See: http://www.cdc.gov/flu/pandemic-resources/ ...Read more

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What causes wildfires?

Droughts: Droughts and dry conditions. Careless use of fire in highly wooded areas. Occasionally, arson is the cause. ...Read more

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What causes meningitis?

What causes meningitis?

Many things: Meningitis develops when the circulating bacteria, virus, or fungi in the blood stream seeds and infects the meninges (thick covering of brain). Occasionally, it can also be an extension of inflammation of adjacent structures, e.g., paranasal sinus, to meninges. ...Read more

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What causes bronchopneumonia?

What causes bronchopneumonia?

Variety of causes: It is an infection of the lungs. It can be caused by a variety of organisms, like viruses, bacteria or fungi. ...Read more

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What causes the cfs?

What causes the cfs?

Various: Find a functional medicine doc in your area at a4m.Com using doc locator function. They can help you find cause of your cfs - usually environmental toxins, food allergens, and metabolic derangements. Then you can live a normal life rather than take meds that just mask symptoms and cause side effects! it is treatable! ...Read more

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What sort of virus causes viral cardiomyopathy?

What sort of virus causes viral cardiomyopathy?

A number: Can. During the winter months, influenza can do it. In the summer months, enteroviruses such as coxsackie can. ...Read more

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What causes bronchiolitis?

What causes bronchiolitis?

Lots of things: Could be rsv, hmpv, adenovirus, flu, paraflu, rhinovirus etc. Watch http://www.Youtube.Com/watch?V=5teb03heixw&feature=related to learn more. ...Read more

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What causes rubella?

What causes rubella?

Single viral strain: Rubella is caused by a virus with only 1 known strain & humans as the only known source. Infection is passed by contact with infected fluid on surfaces or in the air from a sneeze or cough. Immunization has reduced the case numbers when used, but is not 100% efective after 1 dose. Ease of international travel & transmission during incubation results in clusters of new cases every year. ...Read more

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What causes broncho-pneumonia?

What causes broncho-pneumonia?

Various: microrganisms can be responsible. Check this link: http://www.healthline.com/health/bronchopneumonia#Overview1 ...Read more

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What causes copd?

What causes copd?

Smoking: The vast majority of cases of COPD are caused by smoking. In some cases, long standing asthma an turn into copd. ...Read more

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