answersLogoWhite

0

🍎

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.

4,892 Questions

What are the 8 characteristics of bacteria?

  1. Prokaryotic cells without a nucleus.
  2. Presence of cell walls made of peptidoglycan.
  3. Typically reproduce asexually through binary fission.
  4. Varied shapes such as cocci, bacilli, spirilla.
  5. Lack membrane-bound organelles.
  6. Can be autotrophic or heterotrophic.
  7. Ability to form endospores in harsh conditions.
  8. Important roles in ecology, biotechnology, and human health.

Are there 5 ways bacteria can enter the human body?

yes

they can be

ingested via digest tract,

inhaled whilst breathing

passed on through direct contact ( touching infected person, sexual contact)

passed on through indirect contact (touching an object that an infected person has touched previously)

injected by anything that pierces the skin (needles insect bites)

How long does it take for measles to go away?

Measles is actually viral so it may be self limiting and there are vaccines that already help you cure the disease. However, this also depends on the capacity of the body of the patient. Especially in children, their immune system should not be compromised so that the disease will not be so much aggressive. It should also be detected early with the early sign and symptoms so that prompt medical attention is given to the patient.

What percentage of untreated infected victims are quickly killed by the bacteria anthrax?

Approximately 20-25% of untreated infected victims are quickly killed by the bacteria anthrax. Symptoms can progress rapidly, leading to severe illness and death within a matter of days. Early diagnosis and prompt treatment with antibiotics are crucial for improving survival rates.

When are you most susceptible to germs?

You are most susceptible to germs when your immune system is weakened, such as when you are stressed, fatigued, or not eating well. Additionally, close contact with people who are sick, not practicing good hygiene habits, and being around shared surfaces can also increase your risk of getting sick.

Is gram positive cocci contagious?

Yes, some gram-positive cocci bacteria are contagious, such as Staphylococcus aureus and Streptococcus pyogenes. These bacteria can be spread through direct contact with an infected person or contaminated surfaces, leading to various infections, including skin infections and respiratory infections. It is important to practice good hygiene to prevent the spread of these bacteria.

Who are the most common victims for influenza?

The elderly, young children, pregnant women, and individuals with compromised immune systems are at higher risk of complications from influenza. These groups are considered to be the most common victims of the flu.

Does lyme disease cause weight loss?

While weight loss can occur as a result of Lyme disease due to loss of appetite, fatigue, and other symptoms, it is not typically a prominent or defining feature of the illness. Treatment for Lyme disease can also lead to weight gain as the body heals and returns to normal functioning. If you are experiencing unexplained weight loss, it is important to consult with a healthcare provider to determine the underlying cause.

What are nicknames for rabies?

Some common nicknames for rabies include "hydrophobia" and "mad dog disease."

Does equine influenza harm horses?

Yes, equine influenza can harm horses by causing respiratory symptoms such as coughing, nasal discharge, and fever. In severe cases, it can lead to pneumonia and other complications. Vaccination and good biosecurity practices are important for preventing and managing equine influenza.

Wound that keeps opening draining pus?

It may mean that the wound is healing properly and your body is simply expelling any fluid that could prevent the wound from getting better. On the other hand, if the wound is draining a large amount of pus, it could mean that the wound itself is becoming infected, in which case, it would be best to see a doctor.

What is microbial antagonism?

Upper respiratory is in contact with the air we breathe -air is contaminate with microorganisms. Inspite of pathogenic bacteria in the upper respiratory tract, the rate of infection is minimized by microbial antagonism. Which is certain microorganisms of the normal microbiota that suppress the growth of other microorganisms through competition for nutrients and the production of inhibitory substances.

Is a fart molecule large enough to host a germ?

No. There is no real molecular difference between farts and the air you breathe. The reason for the smell is regular air went through your digestive system, including your intestine, and picked up some stomach acid and other fumes along the way. You can't get sick by sitting next to someone who farts, unless you have an extremely weak stomach or a remarkably strong nose.

Why is clostridium perfringens likely to grow in gangrenous wounds?

Because it is an anaerobic bacteria. Although Clostridium perfringes can survive in the presence of oxygen (technically, it is 'aerotolerant'), it really flourishes under conditions of low oxygen pressure.

When the bacterium gets into an ischaemic wound (lack of blood, and therefore low too oxygen), it produces various (at least 12) toxins and tissue-destroying enzymes. The resultant damage has two effects - it allows the organism to establish itself and mulitply, and it disrupts blood supply to the area. This lack of blood obviously lowers the oxygen tension even more (oxygen is carried in the blood), promoting clostridial proliferation and spread even further.

Riding on the crest of an advancing wave of ischaemia and necrosis, the bacterium can thus spread to surrounding tissues. The gas within the tissue, so distinctive in this condition, is formed as a byproduct when the toxins destroy the previously healthy surrounding tissue.

What can happen if you eat food that contains germs?

Eating food that contains germs can lead to foodborne illnesses such as food poisoning. Common symptoms include nausea, vomiting, diarrhea, and stomach cramps. In severe cases, it can result in dehydration and require medical attention.

What do white blood cell mean?

White blood cells are a crucial part of the immune system that defend the body against infection and disease. They help to identify and destroy pathogens like bacteria, viruses, and other harmful organisms. There are several types of white blood cells, each with specific functions in fighting infection and maintaining overall health.

Is there any precaution to protect from measles?

Treatment - uncomplicated measles
An uncomplicated case of measles usually lasts about 14 days and most people make a full recovery. In the meantime, treatment options may include:

  • Bed rest
  • Plenty of fluids
  • Paracetamol to reduce pain and fever
  • Isolation to reduce the risk of transmission.

Treatment - complicated measles
Occasionally, measles is a serious disease that requires urgent treatment and can even be life threatening. Sometimes, a person dies despite prompt medical attention.

Treatment depends on the complication but may include:

  • Hospitalisation
  • Supportive care
  • Antibiotics to treat bacterial infection.

All viruses have to be treated by "support measures". This means to use something for the fever, the headache, the stuff nose and so forth.

What is the color of clostridium botulinum?

When you have a sharply dented can or metal lid, and you see the BLACK something or other that has affected to inside of the now-sharp metal, seems to be growing on it,
that's when you suspect Botulism.

So I think it's Black. But here: they say in the lab they usually stain it, to see it.

Could the black be rust?

Don't get any donations from Whole Foods either. When I worked there, a worker man was about to put that out for donations after we saw the above conditions. I threw in the trash so hard & made sure it (the jars w/ metal lids) smashed irrecoverably.

Is cowpox DNA?

When a mommy cell and daddy cell love each other very much they eat each other.

How many good viruses are there in the human body?

A virus is never "good". There are forms of bacteria that are not harmful and the body needs to preform certain tasks, for example digesting fiber from plants is a job that the bacteria do.

That is not necessarily true:

"...It's is supposed by many evolutionary anthropologists that viruses, specifically retrovirus, which employ the enzyme RNA dependent DNA polymerase (reverse transcriptase), have been responsible for many of the translocations found in mammilian evolution. furthermore, several virus species are responsible for healthy bacterial growth, which, in turn, benefit the human host."

Biophreak

http://www.physicsforums.com/showthread.php?t=339992

"It is possible that telomerase, the enzyme involved in extending the lifetime of cells and maintaining stem cells, evolved from viral enzymes since it's closest relatives are retroviral reverse transcriptase enzymes."

Ygggdrasil

http://www.physicsforums.com/showthread.php?t=339992

Is Crohns disease a progressive disease?

Crohn's Disease isn't considered progressive, only because it isn't predictable or steady. It may get worse for some people, and for others, they go into permenant remission soon after they are diagnosed. Therfore, it really just depends on who you are and how your Crohn's Disease has developed.

Name 2 ways a virus can spread among humans?

Viruses are not living pathogens, they are "organisms" with the ability to duplicate themselves ~ but only if they have a living host to provide the energy and materials for the duplication process. Different viruses use different hosts and most of the time they don't cross over species for hosts, but some do. The H1N1/09 virus was able to mutate from a strain that pigs got to a strain more targeted toward people. Other viruses use plants and other animals for hosts.

The short explanation of how this happens is:

  • Virus is in the environment
  • Host is exposed to the virus in the environment
  • Some virus particles are able to attach to the cell walls of the cells of the host.
  • The virus connects to the center of the cell and injects genetic material that the virus uses to instruct the host cell how to make virus duplicates
  • Host makes new viruses
  • Virus duplicates get out of host cells and spread to infect more hosts

See the related questions below about the lytic cycle of viruses.

What is the definition for measles outbreak?

A measles outbreak refers to a sudden increase in the number of reported cases of measles within a specific geographic area or population. It is typically defined as the occurrence of more cases than expected based on historical data or epidemiological thresholds. Outbreaks can lead to widespread transmission of the virus and pose a public health threat.

Can treatment with Transpeptidase eliminate gram positive bacteria from a mixture of gram positive bacteria and gram negative bacteria?

No. A treatment of ethylenediaminetetraacetic acid (EDTA) and the enzyme, lysozyme, will cause gram negative bacteria to lyse. Some gram positive bacteria can also be lysed by doing this. The EDTA stabilizes the solution and allows lysozyme to cut the bonds between the carbohydrates that make up the cell wall wall in bacteria. This will lyse the cell and cause the contents of the cell to be spilled out. This technique is primarily used for DNA assays. A good way to isolate either gram positive or gram negative is by using different types of agar. The MacConkey agarmight be the most useful for what you want to do. It will only allow gram negative to grow, isolating just the gram negatives only.

Why is vitamin A given with measles vaccine?

vitamin A was thought to improve immune response to vaccine and thus it was given along with vaccine. but reaserch indicates that there was no differnec with vitaminA supplementation and without it.