### backs:

Quarterback
* are backs
  - football players
  - human beings with families and careers and aspirations for themselves
  - part of football teams. * members of the offense, or attacking team. They line up directly behind the center, in the middle of the offensive team's line. A quarterback is usually the leader, and starts most plays. In addition, the quarterback gives commands to the other players before the start of a play. A quarterback will in most attacking plays throw the ball to a member of their team, ready to run to the end of the pitch. Quarterbacks may also run the ball themselves, as well as hand the ball to a runningback

### bacterial infection:

Epidemic typhus
* causes fever, headache, weakness, and muscle aches.
* is bacterial infection
  - caused by the bacterium Rickettsia prowazekii
  - passed from human to human by the body louse

### bacterium caused illness:

Food poisoning
* Most food poisoning lasts a day or two and disappears by itself
  - occur at home
  - result of our eating nonhuman animals
* bacterium caused illness.
* can also cause vomiting
  - be life threatning
* can be very dangerous
  - serious
* can cause miscarriage
  - various ailments, such as nausea, vomiting, diarrhea and stomach pains
  - vomiting, stomach cramps and flu-like symptoms
  - dehydrate a mother and deprive the fetus of nourishment
  - even be deadly in extreme cases, most often with the elderly or the very young
  - occur from eating contaminated food or water, or from unsafe food handling
* general term to denote any illness resulting from the consumption of food.
* happens when food comes in contact with bacteria.
* is an example of a bacterial infection.
* is an illness
  - caused by eating harmful or contaminated food
  - resulting from consuming contaminated food or water
  - another issue, especially with fish and meat products
* is caused by eating food that is contaminated by bacteria
  - organisms from the environment, many of which occur naturally in foods
  - preparing and storing foods improperly
  - common, it's a real illness that can kill people and it is preventable
  - largely bacterial in origin
  - linked to thirty different bacteria from e-coli to salmonella
  - no day at the beach
  - often the aftermath of a lovely summer picnic
* is on the increase all over the world
  - rise globally
  - possible when foods become contaminated
* is the general term for getting sick from eating contaminated food
  - price paid by the public to ensure the healthy profits of agribusiness
  - real nuisance at family picnics
  - unpleasant even if it's a mild form
  - way better than colitis
* is, at best, uncomfortable and, at worst, fatal.
* occurs when spoiled food is eaten.
* serious danger in the summer months
  - risk only for vulnerable populations, like the very young

### bacteriums:

Bacterial spore
* Most bacterial spores float in air.
* Some bacterial spores survive for centuries.
* are bacteriums
  - dense and can settle during shipment and storage
* are extremely resistant to heat and cold
  - most prevalent in spring and fall
  - often very resistant to heat and dessication
* die very slowly, if at all, during freezing and frozen storage.
* germinate and invade the body cavity of the insect.
+ Spore, Bacterial spores: Plant anatomy :: Fungi :: Bacteria
  * Bacterial spores are extremely resistant. Spores of tetanus and anthrax, for example, can survive in the soil for many years. The origin of these spores was discovered in the 19th century, when a biologist noticed, under the microscope, a small, round, bright body inside bacterial cells. This survived even when the bacteria were boiled for five minutes. This killed the bacteria, but not the spores. They germinated when conditions were right.

Heterotrophic bacterium
* Heterotrophic bacteria feed on materials.
* are bacteriums
  - heterotrophs