Coli : Bacteria ( Viruses )

they enter the body, they use their capsules as protection from white blood cells, cells that are meant to destroy them. After avoiding the white blood cells and constantly reproducing, the bacteria finally break apart and release endotoxins. The toxins are meant to destroy tissue that is located nearby. Viruses are incapable of copying this process. Since they are not alive, they are required to have a living host in order to reproduce. Upon entering our body, they use proteins on their outside coat

Bacteria are unicellular organisms called prokaryotes. Viruses are pieces of biomolecules that cannot reproduce independently. Both groups may be pathogens, or may be beneficial- sometimes, the same species or variety may be both, depending on circumstances (Starr, C., and Taggart, R., 2004.) Throughout history, pathogens and more helpful species have played vital roles in the development of humanity as a species and of the human social arrangement. Prokaryotes are divided into eubacteria and archaebacteria

Florida they found coliform bacteria, and E. Coli that caused diarrhea in many of the washing machines. (Rostein). From further investigation they discovered that 60% of the washing machine had coliform bacteria and 10% had E. Coli in it. (Rostein). “Researchers found that 40 percent of sterile cloths washed in non-bleach laundry contained fecal bacteria. In fact, there was enough left over to contaminate the next wash load” (Rostein) Bacteria such as Salmonella, and viruses including hepatitis A, rotavirus

gastrointestinal complications from consuming tainted foods. Over seventy-six million cases will occur in the United States every year according to Sagar, in "Viruses in Food." The spread of foodborne illness is through the oral-fecal route and can be from viral causes like Hepatitis A, Noroviruses, and Human Caliciviruses, or has bacteria present like E. Coli or Salmonella. Thinking about consuming contaminated foods with fecal material present seems like it would be unrealistic. However, even microscopic

resistance of bacteria to antibiotics is becoming a grave and global medical problem. This is because whenever antibiotics are taken the development of resistance is a given consequence; bacteria adapt to changing environmental conditions through the continuous process of evolution. The main issue with antibiotics is not whether but when antibiotic resistance will occur. This resistance is caused by the lack of new antibiotics available and continuing over-prescription of antibiotics. Any bacteria that acquire

Biocontrol of seven Vero-toxigenic E. coli with lytic bacteriophage for lettuce, sprouts, and seeds With the high morbidity and mortality in hemorrhagic colitis outbreaks caused by E. coil O157:H4, Verotoxigenic Escherichia coli (VTEC) was first described in Canada during the 1980s (Woodward 2002) Verotoxigenic E coli (VTEC) or Shiga-toxigenic E coli, including O157:H7 and other non-O157 serogroups, include O26, O45, O103, O111, O121, and O145, which are increasingly cause foodborn illness in United

Due to viruses drying out easily, in order for transmission to occur the virus needs to come in direct physical contact with mucous membranes. When used, condoms can prevent the transmission of viruses from entering the body and initiating diseases. Some condoms are better are preventing transmission of STDs due to the material that it is made out of. Natural condoms have microscopically pores, which can allow the small viruses pass through the pores and into the bodies

The E. Coli DNA Isolation and Analysis lab’s purpose was to isolate E. Coli DNA and analyze it using gel electrophoresis. We were able isolate E. Coli DNA and we could see the bacteria growing on our plates. Because of the way we streaked it across, We were able to see the long lines of the organisms, but also smaller colonies as the number dwindled on later sections of the plate. The salmon sperm DNA we gathered made a long, bright strip during gel electrophoresis, compared to the E. Coli, which

The T-Even bacteriophage is a virus that attacks E. Coli bacteria. The basic function for all viruses is alike. Viruses use this function to hijack cells and inject their own genetic information to reproduce themselves. One cell alone can reproduce hundreds of viruses. This particular virus is good for you, because it kills off the E Coli. infection, which means this is a medical virus that can be used to treat illnesses. The T-Even phage is 90nm wide and 200 nm long, which is relatively big

Bacteriophages (or in short, Phages) are viruses that solely infect bacteria, in fact, each Phage can only infect a very specific type of bacteria in order to survive and replicate. like other viruses, Phages need a bacterial host in order to replicate their viral DNA , RNA etc… Phages are also named after the strain of bacteria which they infect eg: coli phages infect the bacteria E-coli. each Phage can vary in shape and size but they all contain Capsids (protein coats) which surround their viral