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
Alenkasestr [34]
3 years ago
11

which U.S. Army medical officer headed the team that killed thousands of disease-carrying mosquitoes in Panama during the constr

uction of the canal?
Social Studies
1 answer:
ASHA 777 [7]3 years ago
8 0

Answer:

Colonel William Crawford Gorgas

Explanation:

Colonel William Crawford Gorgas led the Sanitation Department team, with more than 4,000 employees with a $2 million budget by the end of 1906. The team started with screening of operational buildings, residences, hospitals, and railway car windows and doors. The team made use of 120 tons of pyrethrum powder (a dried flower that served as an insecticide), 300 tons of sulphur, and 50,000 gallons of kerosene oil per month in a massive fumigation program.

The sanitation team was divided into Stegomyia and Anopheles teams.

The Stegomyia fumigation team, carried out their operations by sealing doors and windows with paper, burning sulphur or pyrethrum for at least an hour in each room. They also laid a skim of oil on all water containers, cisterns, cesspools, and drainage ditches weekly to prevent mosquito propagation.

Their activities led to the end of the yellow fever epidemic in November with only forty-seven fatalities.

On the other hand, the Anopheles team were equipped with mowers, machetes, and flamethrowers, where they hacked and burned away jungle vegetation to create sunny, windy areas that deprived Anopheles of its preferred habitat.

They also, create water-filled pans to entice mosquitoes to lay eggs, then dumped the larvae down a disinfected drain.

New well screened hospitals were also built, and isolation centers created with separate wards for different diseases. The results was that, no U.S. citizen died in Panama in the last three months of 1906, and eventually, Panama went from death-trap to a free from diseases community.

You might be interested in
What pattern of changes in vital signs (heart rate and blood pressure) occur during dynamic exercise, immediately after dynamic
Elenna [48]

Answer:

Some changes are described below.

Explanation:

  • The cardiac rate has increased throughout exercise training, diminishes rapidly higher-intensity exercise.
  • Systolic BP dramatically because as diastolic remains close to something like the base point.
  • During that moment, there's often a decrease throughout BP which can go underneath the values of before the exercise.
  • The rate needs to continue to undermine all through recovery, restoring to exercise concentrations as principles of BP comparably come back to everyone's training.
3 0
3 years ago
One of the goals of research is to understand the influence of the independnent dependant___________ on the
DerKrebs [107]

One of the goals of the <u>a) Causal</u> research is to understand the influence of the independent <u>variables</u> on the dependent <u>variable</u>.

<h3>What is causal research?</h3>

Unlike descriptive research, which describes what is going on or what exists, causal research or “experimental study” is designed to determine whether one or more variables (independent variables) cause or affect the value of another variable (dependent variable).

An independent variable is a variable that the researcher changes to determine the dependent variable.

<h3>Answer Options</h3>

a) Causal research

b) Probability sampling

c) Descriptive research

d) Exploratory research

e) Nonprobability sampling

Thus, one of the goals of the <u>a) Causal</u> research is to understand the influence of the independent <u>variables</u> on the dependent <u>variable</u>.

Learn more about causal research at brainly.com/question/8051473

3 0
2 years ago
A senator's term of office is
Sidana [21]

Answer: Six Years

Explanation:

They serve 6 year terms.

4 0
3 years ago
According to 1 Samuel 15:22 - 23, God does not want sacrifices on an altar, but instead He wants us to ______________________ to
ch4aika [34]

Answer: listen to him

Explanation:     Has the Lord as great delight in burnt offerings and sacrifices,

As in obeying the voice of the Lord?

Behold, to obey is better than sacrifice,

And to heed than the fat of rams.

23 For rebellion is as the sin of [a]witchcraft,

And stubbornness is as iniquity and idolatry.

Because you have rejected the word of the Lord,

He also has rejected you from being king.”

5 0
2 years ago
Which of these best describes why Georgia was important to United States during world war 1?
Sveta_85 [38]

Answer:

D i took the test

Explanation:

4 0
3 years ago
Other questions:
  • Which country experiences nearly every type of climate?
    12·2 answers
  • The __________________ problem of making Political Science scientifically valid can be seen when we consider that there is no co
    9·1 answer
  • Which structure is only found in animal<br> cells
    12·2 answers
  • ​according to research studies, what heavily skews our perception of the localization of sound?
    9·2 answers
  • Mr. Langley emphasizes that premature sexual activity among high school students involves the interplay of alcohol consumption,
    6·1 answer
  • What is racial discrmination?
    9·1 answer
  • A typical resume is usually organized into how many sections
    8·2 answers
  • Answer correctly for brainlist
    12·2 answers
  • Please Help!!!!!!! This question is due today at 10pm<br> How does Kylie Jenner use leadership?
    5·1 answer
  • Why is social rule necessary?​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!