What are 5 harmful effects of bacteria?

They are responsible for many infectious diseases like pneumonia, tuberculosis, diphtheria, syphilis, and tooth decay. Some bacteria cause cellulose degradation thereby destroying textiles, wooden articles, and canvas.


What is harmful about bacteria?

Many disease-causing bacteria produce toxins — powerful chemicals that damage cells and make you ill. Other bacteria can directly invade and damage tissues. Some infections caused by bacteria include: Strep throat.

How are bacteria harmful to humans 4 examples?

Some types of bacteria can cause diseases in humans, such as cholera, diptheria, dysentery, bubonic plague, pneumonia, tuberculosis (TB), typhoid, and many more. If the human body is exposed to bacteria that the body does not recognize as helpful, the immune system will attack them.


What are 3 disadvantages of bacteria?

Disadvantages of bacteria:
  • Bacteria cause a wide variety of diseases such as cholera, typhoid, etc.
  • They spoil food items.
  • They decompose food, imparting a foul smell to the environment.


What are 2 examples of bacteria that can harm humans?

Examples of bacteria that cause infections include Streptococcus, Staphylococcus, and E. coli. Antibiotics are the usual treatment.


Lecture-12 Harmful effects of Bacteria



What are 7 diseases caused by bacteria?

Common infectious diseases caused by bacteria:
  • Strep throat.
  • Salmonella.
  • Tuberculosis.
  • Whooping cough (pertussis).
  • Chlamydia, gonorrhea and other sexually transmitted infections (STIs).
  • Urinary tract infections (UTIs).
  • E. coli.
  • Clostridioides difficile (C. diff).


What is the most harmful type of bacteria?

The most deadly bacterial disease contracted by human beings is mycobacterium tuberculosis, the world's leading infectious disease with more than 1,700,000 deaths per year. As much as 13% of cases are resistant to most antibiotics, and about 6% are resistant or unresponsive to essentially all treatment.

How does bacteria affect the body?

But infectious bacteria can make you ill. They reproduce quickly in your body. Many give off chemicals called toxins, which can damage tissue and make you sick. Examples of bacteria that cause infections include Streptococcus, Staphylococcus, and E.


What are the 3 most common diseases caused by bacteria?

Meningitis, food poisoning, and pneumonia are common illnesses caused by bacteria infection.

What do bacteria do against us?

The bacteria on our skin, in our airways, and in our digestive system are the first line of defense against foreign “invaders” (pathogens) that can cause infection and other problems. Bacteria also act as “tuning forks” for our body's immune system, making sure it's pitched just right.

How are bacteria harmful and helpful to humans?

Microscopic creatures—including bacteria, fungi and viruses—can make you ill. But what you may not realize is that trillions of microbes are living in and on your body right now. Most don't harm you at all. In fact, they help you digest food, protect against infection and even maintain your reproductive health.


What's the most common bacterial infection?

UTIs are mainly caused by the bacterium Escherichia coli (E. coli) and are the most common infection in humans worldwide.

How is bacteria spread?

Bacteria are transmitted to humans through air, water, food, or living vectors. The principal modes of transmission of bacterial infection are contact, airborne, droplet, vectors, and vehicular. Preventive measures have a dramatic impact on morbidity and mortality.

What are the 10 examples of bacteria?

Top Ten Bacteria
  • Deinococcus radiodurans.
  • Myxococcus xanthus. ...
  • Yersinia pestis. ...
  • Escherichia coli. ...
  • Salmonella typhimurium. ...
  • Epulopiscium spp. The big boy of the kingdom – about as large as this full stop. ...
  • Pseudomonas syringae. Dreaming of a white Christmas? ...
  • Carsonella ruddii. Possessor of the smallest bacterial genome known, C. ...


Can bacteria cause death?

Bacterial infections are responsible for sudden unexpected death in adults and children. In the pediatric population bacterial infections of the respiratory, gastrointestinal, and central nervous system account for the majority of cases of sudden death.

What are 4 common bacterial infections?

Bacteria can also enter your body through your airway and cause infections like bacterial pneumonia. Other types of bacterial infections include urinary tract infections (including bladder and kidney infections) and dental abscesses, as well as infections caused by MRSA, Group B Streptococcus, and C. Difficile.

Can bacteria cause disease?

Infectious diseases can be caused by: Bacteria. These one-cell organisms are responsible for illnesses such as strep throat, urinary tract infections and tuberculosis.


How many diseases are caused by bacteria?

There are over 40 different diseases on the list of reportable diseases.

What are harmful bacteria known as in food?

Salmonella can cause salmonellosis and typhoid fever and paratyphoid fever. Botulism is most often caused by Clostridium botulinum. Some other germs that cause foodborne illness include Cryptosporidium, Cyclospora, hepatitis A virus, Shigella, and Yersinia.

What are 3 ways bacteria enter the body?

How bacteria and viruses enter the body
  • Cuts.
  • Contaminated food or water.
  • Close contact with an infected person.
  • Contact with the faeces of an infected person.
  • Breathing in the exhaled droplets when an infected person coughs or sneezes.


How long does bacteria live?

Bacteria divide somewhere between once every 12 minutes and once every 24 hours. So the average lifespan of a bacterium is around 12 hours or so. Read more: Are any bacteria visible to the naked eye?

Where is the most bacteria found in a house?

The kitchen holds the title for “germiest place in the house”, where bacterial contamination is far more common than in the bathroom, for example:
  • Kitchen rags, towels and sponges are notorious for bacterial contamination.
  • The sink drain, sink and countertops are also frequently contaminated.


What happens when you have a bacterial infection?

Bacterial infections can cause some general symptoms, such as pain, fever, and swollen lymph nodes. They may also cause some other symptoms depending on where in the body they occur. Bacterial infections typically require treatment with antibiotics.


How does a person get sepsis?

When germs get into a person's body, they can cause an infection. If you don't stop that infection, it can cause sepsis. Bacterial infections cause most cases of sepsis. Sepsis can also be a result of other infections, including viral infections, such as COVID-19 or influenza, or fungal infections.

How do you get rid of bacteria in your body?

How to Detox the Body of Bacteria
  1. Drink lots of water. To cleanse your body of bad bacteria, you need to flush it out with water. ...
  2. Sweat it out. Sit in a sauna for approximately 20 minutes. ...
  3. Eat fresh, natural foods, particularly fresh fruits and vegetables. ...
  4. Avoid excess sodium and sugar, as well as caffeine.