1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stepladder [879]
3 years ago
9

In the 1970s many experts thought that the fight against infectious diseases was over. In fact, in 1970, the Surgeon-General of

the United States of America indicated that it was "time to close the book on infectious diseases, declare the war against pestilence won, and shift national resources to such chronic problems as cancer and heart disease".
During the last two decades, this opinion has been reversed, and there is now a renewed appreciation of the importance of infectious disease. The spread of new diseases such as HIV/AIDS, hepatitis C, and dengue hemorrhagic fever, and the resurgence of diseases long since considered under control such as malaria, cholera, and sleeping sickness, have drawn considerable attention. Over the past 200 years there have been multiple devastating outbreaks of cholera caused by the bacteria, V. cholerae. Cholera is an infectious and deadly bacterial disease that affects the small intestine. The infection causes severe vomiting and diarrhea. The infection is typically spread from person to person and through infected food and water.
In 1832, there was a cholera outbreak in New York City that killed 3,515 people or 1.5% of the city's population. New York was struggling to keep up with the growing population, the city was overcrowded, there was a lack of sanitation, and science did not yet recognize the role of germs in disease. Cholera overwhelmingly affected the poorest neighborhoods in the city, hitting African-Americans and immigrant Irish Catholics the most. Many of the high income people from the city were able to leave the city and prevent themselves from getting sick.
In 2010, an outbreak of cholera was confirmed in Haiti for the first time in more than 100 years just ten months after the catastrophic earthquake killed over 200,000 people and left over 1 million people without a secure place to live. In this outbreak there were over 665,000 cases and 8,183 people died. A more recent outbreak of cholera occurred in Kenya in 2017 with 3,967 confirmed cases and 76 deaths. Epidemiologists believe the disease was transmitted during mass gathering events and at refugee camps within the country.
Scientists are concerned because they noticed that some antibiotics used to treat cholera are not working as well as they have in the past. Furthermore, the vaccine for cholera is not always effective in the long term and is not a commonly given immunization by most doctors. Researchers have estimated the bacteria, V. cholerae may infect between 1.3 and 4 million people and cause 21,000 to 143,000 deaths worldwide a year. How could we prevent a severe outbreak in the future?

Questions
What factor(s) were the same in the cholera outbreaks of 1832, 2010, and 2017?


Based on this phenomenon, what is a problem we are currently facing?


What are some initial ideas on how to solve it?


Of the many different strains (types) of V. cholerae, only a few cause pandemic disease. A pandemic is an outbreak of a disease that occurs worldwide or over a very large geographical area. There have been six cholera pandemics recorded since 1816. The seventh pandemic was first seen in El Tor, Egypt and continues on to this day.

I think the 7 was the longest becuase it lasted 50 to 60 years i guess am i right

1) Which number pandemic lasted the longest?


2) What are some factors as to why it lasted the longest? (Refer to evidence from the text)
Biology
1 answer:
Alex787 [66]3 years ago
5 0

Answer:

Try to make your question more clearer,  because it is too complexed,and no one will even try to help you.

you can ask each question sepperately for example. so if no one answered one question he/she can answer the other question if he/she knows the answer.

<u><em>Only a tip for your future questions! </em></u>

You might be interested in
The femur is a typical example of a long bone. Describe the structure of the femur diaphysis and the epiphyseal ends. Explain wh
dimaraw [331]

<u>Answer</u>:

Femur diaphysis and epiphyseal ends is made up with cortical bone and contains bone narrow. It is in the middle tabular part and composed with compact bone and central marrow cavity is situated around it. It is round in shape and a long bone. It is the origin of the attachment of many muscles as well as ligament.

The femur is the longest bone which is present in our thigh and also call as thigh bone. The division of femur can be divided into shaft, proximal and distal. In some aspect it is the strongest bone of our body and it helps in any activities.  

3 0
3 years ago
The cell shown in the diagram is ?
aleksley [76]

Answer:

Plant cell

Explanation:

Because vacuole, chloroplast and cell wall is only present in A Plant cell

5 0
2 years ago
Explain the biological structure hierarchy of the human body and the role of homeostasis in maintaining the body. Include the fo
Nuetrik [128]

Answer:

1. Biological structure of the human body

The human body is organized in different levels according to their complexity.

The levels are the folowing (increasing complexity).

1. Atom (N, O, C,..)

2. Molecule (Protein, lipids, water...)

3. Organelle (mitochondria, golgi apparatus,...)

4. Cell (blood cells, bone cell,..)

5. Tissue (connective tissue, epithelial tissue,..)

6. Organ (lungs, kidney,..)

7. Organ system (skeletal system, muscuar system,...)

8. Organism (the human body)

Each of the levels is formed by an agrupation of the previous level. For example, cells are formed by a number of organelles, and a group of cells form a tissue.

Cells are the basic units of structure of the body, and there are different types of them.

2. Homeostasis

Homeostasis is a process of the body by which the organism works to maintain a stable internal environment, while adjusting to changes in the external environment.

This process is possible because of the work of both the nervous system and the endocrine system. While the first controles the body's activities and detects the necesity of adjustments, the second regulates the activities by using hormones.

6 0
1 year ago
The atoms that composes non-living substances are the same as the atoms that compose living substances
Vedmedyk [2.9K]

Answer:

Partly true

Explanation:

7 0
1 year ago
An unknown plant species has separate male and female gametophytes, and releases spores into the environment. Which of the follo
Gnesinka [82]
The following which poses as the most logical conclusion about the life cycle of this plant is definitely : The plant is a fern, and the gametophyte is its dominant phase. I am pretty sure you will fing this answer interesting. Regards!
5 0
3 years ago
Read 2 more answers
Other questions:
  • The breakdown of rocks due to wind is an example of
    6·2 answers
  • Blank are where genes are found
    8·2 answers
  • An elements atomic number is 10. How many protons would an atom of this element have?
    9·2 answers
  • An organism that is classified as anaerobic can perform respiration (1 point)
    14·2 answers
  • PLS HELP!!! I'LL GIVE BRAINLY!!!
    13·1 answer
  • An important structural component of<br> plant cell walls made of glucose.
    12·1 answer
  • Why did the color of the peppered moth change?
    9·2 answers
  • Which process transfers heat from the sun to the ground?
    15·2 answers
  • Rough endoplasmic reticulum.
    5·1 answer
  • Which SI (metric) unit would be used to measure the distance a turtle traveled across the beach?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!