﻿WEBVTT

00:00:00.417 --> 00:00:01.793
Hello, my name is Madison

00:00:01.793 --> 00:00:05.088
Sant and I'm from Mary P Laboratories
Parasitology department.

00:00:05.672 --> 00:00:08.925
This presentation will cover Plasmodium
and Bbca species.

00:00:09.676 --> 00:00:13.638
Please follow the Parasitology Practice
worksheet while listening to the lecture.

00:00:14.180 --> 00:00:16.307
Feel free to pause the lecture.
Take your notes.

00:00:16.307 --> 00:00:18.143
Write down any questions you may have

00:00:18.143 --> 00:00:20.854
so that we can discuss them
when we meet in person.

00:00:20.854 --> 00:00:24.190
If you will not be meeting a person,
I would suggest talking to your professor

00:00:24.190 --> 00:00:27.193
about any questions you may have.

00:00:27.986 --> 00:00:31.197
The organisms we will
discuss are Plasmodium falciparum,

00:00:31.322 --> 00:00:36.036
Plasmodium vivax, Plasmodium valley,
Plasmodium malaria and Bbca.

00:00:37.454 --> 00:00:41.166
The same commonly used to detect
blood parasites as against the seen.

00:00:41.624 --> 00:00:45.378
Thick and thin smears are made
from whole blood and EDTA.

00:00:46.004 --> 00:00:49.049
The thick smears are used to detect
the presence of parasites,

00:00:49.299 --> 00:00:52.635
while the thin smears are used
for species level identification.

00:00:54.012 --> 00:00:56.264
The four
main species of malaria Plasmodium

00:00:56.264 --> 00:01:00.727
falciparum, Plasmodium vivax, Plasmodium
evali and plasma malaria.

00:01:01.311 --> 00:01:04.314
The malaria parasite life cycle involves
two hosts.

00:01:04.814 --> 00:01:09.069
Most species are transmitted
by mosquitoes of the genus Anopheles.

00:01:09.736 --> 00:01:11.905
Infected female mosquitoes inject spores.

00:01:11.905 --> 00:01:13.948
The whites, when taking a blood meal.

00:01:13.948 --> 00:01:15.575
Sport is also carried through the blood

00:01:15.575 --> 00:01:18.912
to the liver when they invade hepatocytes
and form sky's horns.

00:01:19.496 --> 00:01:23.833
The liver scars on rupture, releasing
Mary's voice that invades erythrocytes.

00:01:24.000 --> 00:01:27.337
Starting the year
three cycle, early ring forms

00:01:27.337 --> 00:01:30.673
develop into mature trapezoids
and take on one of two pathways.

00:01:31.299 --> 00:01:34.385
One the develop into scars
on which rupture and continue

00:01:34.385 --> 00:01:38.014
with a cycle or two
they develop into commuter sites.

00:01:38.640 --> 00:01:41.434
Commuter sites are dead
end stage in the human host,

00:01:41.434 --> 00:01:44.437
but are required for sexual reproduction
in the mosquito

00:01:45.146 --> 00:01:48.983
and the mosquito host microcomputer
sites, the males eggs

00:01:49.567 --> 00:01:53.947
in fertilized macro commuter
sites, the females resulting in oh cannot

00:01:54.489 --> 00:01:57.492
okay needs further development into Osis,

00:01:57.909 --> 00:02:00.829
which when mature, rupture and release
infective spores.

00:02:00.829 --> 00:02:01.996
Whites.

00:02:01.996 --> 00:02:05.291
The most frequent symptoms of malaria
include fever and chills,

00:02:05.291 --> 00:02:08.962
which can be accompanied by headache,
weakness, vomiting, and diarrhea.

00:02:10.088 --> 00:02:12.966
Other clinical features and includes

00:02:12.966 --> 00:02:17.387
spin to make Eylea,
anemia, thrombocytopenia, hyperglycemia,

00:02:17.679 --> 00:02:20.682
pulmonary or renal dysfunction,
and neurologic changes.

00:02:22.267 --> 00:02:25.603
The clinical presentation can vary
substantially depending on the affected

00:02:25.603 --> 00:02:27.188
species.

00:02:27.188 --> 00:02:30.316
The level purse, tamia
and the immune cells of the patient.

00:02:31.025 --> 00:02:33.444
Infections caused by Plasmodium falciparum

00:02:33.444 --> 00:02:36.823
are the most likely to progress
to severe, potentially fatal forms

00:02:37.115 --> 00:02:41.578
with central nervous system involvement,
also known as cerebral malaria, acute

00:02:41.578 --> 00:02:45.790
renal failure, severe anemia, and acute
respiratory distress.

00:02:45.790 --> 00:02:47.750
In the syndrome.

00:02:47.750 --> 00:02:51.129
Other species can also have severe
manifestations.

00:02:52.213 --> 00:02:56.259
Complications of Plasmodium by that vivax
include spinal magli

00:02:56.467 --> 00:02:59.470
and those with positive malaria
include nephrotic syndrome.

00:03:01.181 --> 00:03:03.474
Recognition of Plasmodium
is based on observing

00:03:03.474 --> 00:03:06.477
the stages of the parasite inside
the infected red blood cells.

00:03:06.936 --> 00:03:10.481
Identification of Plasmodium,
A species level is important for patient

00:03:10.481 --> 00:03:13.818
management, as different species
may be treated differently.

00:03:14.861 --> 00:03:16.654
On this page, we'll discuss the stages

00:03:16.654 --> 00:03:19.741
generally using Plasmodium
malaria as an example.

00:03:20.909 --> 00:03:23.912
Figure one is a normal red blood cell,

00:03:24.078 --> 00:03:26.247
the early trapezoids
and ring stage of malaria.

00:03:26.247 --> 00:03:29.918
So figures two through
five is characterized by a blue ring of

00:03:29.918 --> 00:03:32.921
cytoplasm with one or more reddish purple

00:03:33.296 --> 00:03:37.383
chromatin dots in a lacy surface,
a white figure six through 13.

00:03:37.842 --> 00:03:40.845
The cytoplasm expands and becomes more me
buoyed.

00:03:41.763 --> 00:03:43.848
Softener stippling
may be present on the stage

00:03:43.848 --> 00:03:46.851
for Plasmodium
vivax and Plasmodium valley.

00:03:47.018 --> 00:03:50.021
The early skies on figures 14 through 17

00:03:50.063 --> 00:03:52.565
has thicker
cytoplasm and development on the Mary.

00:03:52.565 --> 00:03:56.319
So I took her
pigment is brown to black and appears

00:03:56.319 --> 00:03:59.322
to be diffuse in the early stages
of Skye's art development.

00:03:59.656 --> 00:04:01.866
And the latest guidance figures 18 through

00:04:01.866 --> 00:04:04.953
22, pigment is coalesce or clump together.

00:04:06.996 --> 00:04:09.582
Individual Mary Swartz can be seen.

00:04:09.582 --> 00:04:12.669
The cameo sites for years 23 through 25

00:04:13.211 --> 00:04:16.214
is mostly cytoplasm
with some chromatin present.

00:04:18.007 --> 00:04:21.344
Plasmodium falciparum
is the predominant species in the world

00:04:21.344 --> 00:04:24.347
and is found throughout the tropics
and subtropics,

00:04:24.472 --> 00:04:27.475
particularly in Africa and Asia.

00:04:29.018 --> 00:04:32.230
Impose meaningful SIP from late
trapezoids and skies

00:04:32.230 --> 00:04:34.691
on its expressive protein
on the surface of the earth

00:04:34.691 --> 00:04:37.694
or acidic membrane,
causing the infected urethra site

00:04:37.819 --> 00:04:41.531
to adhere to the endothelial
lining of capillaries and internal organs.

00:04:42.031 --> 00:04:46.244
Thus, only ring forms and gamete sites are
usually seen in peripheral blood smears.

00:04:47.078 --> 00:04:47.453
Mary.

00:04:47.453 --> 00:04:49.914
So I will invade red
blood cells of all stages.

00:04:49.914 --> 00:04:52.917
So infected red blood cells are oftentimes
normal acidic.

00:04:53.376 --> 00:04:56.504
Your cycle is about 36 to 48 hours.

00:04:57.255 --> 00:05:00.258
Infected red blood cells
may contain multiple rings.

00:05:00.466 --> 00:05:03.553
The rings are small, less than one
third of the red blood cell diameter.

00:05:04.304 --> 00:05:06.931
The cytoplasm is thin and delicate.

00:05:06.931 --> 00:05:11.311
Chromatin can create headphones or double
cross and dots, and appliqué forms

00:05:11.602 --> 00:05:14.647
where the chromatin dot is on the edge
of the red blood cell membrane.

00:05:15.606 --> 00:05:19.777
The rings can also be extracellular
gamete of sites or crescent shaped.

00:05:22.905 --> 00:05:25.158
Plasmodium vivax has a wide distribution

00:05:25.158 --> 00:05:28.161
and is found in tropics,
subtropics and tempered zones.

00:05:30.538 --> 00:05:32.832
All stages can be seen in
peripheral blood.

00:05:32.832 --> 00:05:35.626
Mary sites show
preference for reticular sites,

00:05:35.626 --> 00:05:38.629
so in fact the red blood
cells are oftentimes macro acidic.

00:05:39.255 --> 00:05:44.052
There is a persistent persistent extra
through acidic stage and the liver cells.

00:05:44.302 --> 00:05:47.305
The results in a dormancy
for about 3 to 6 months.

00:05:47.347 --> 00:05:50.350
So relapses may occur
if not properly treated.

00:05:51.601 --> 00:05:54.854
The year
orthostatic cycle is 44 to 48 hours.

00:05:55.396 --> 00:05:56.272
The infected red blood

00:05:56.272 --> 00:06:00.151
cells are enlarged and oftentimes
hug the surrounding red blood cells.

00:06:00.818 --> 00:06:04.322
Schaffner sibling
may appear as the trophies so mature

00:06:05.031 --> 00:06:08.451
the rings are large, usually greater than
one third the red blood cell diameter.

00:06:09.160 --> 00:06:13.122
The cytoplasm is sturdy, with
one single chromatin dot as the surface

00:06:13.122 --> 00:06:17.502
sites mature, the cytoplasm expands
and becomes polymorphic and me buoyed.

00:06:20.129 --> 00:06:21.005
Mature guys on

00:06:21.005 --> 00:06:24.217
some Plasmodium
vivax contain 12 to 24 merry sites.

00:06:24.759 --> 00:06:28.346
Give me sites are large and round
and usually fill the entire red blood

00:06:28.346 --> 00:06:31.349
cell, making the outline
the red blood cell hard to see.

00:06:34.602 --> 00:06:37.438
Past Noma Valley can be found in West
and central Africa,

00:06:37.438 --> 00:06:41.317
India, Southeast Asia, the Philippines,
New Guinea and other areas.

00:06:41.901 --> 00:06:44.112
It is not found in central South America.

00:06:44.112 --> 00:06:47.323
So I like to say Plasmodium
no valley to help me remember,

00:06:48.116 --> 00:06:50.535
all stages can be seen
in the peripheral blood.

00:06:50.535 --> 00:06:53.246
Mary. So I show a preference
for particular sites.

00:06:53.246 --> 00:06:56.249
So in fact the red blood
cells are oftentimes macro acidic.

00:06:56.582 --> 00:07:00.128
There's a persistent X
or your acidic state in the liver cells.

00:07:00.461 --> 00:07:02.755
The results
in a dormancy for several months.

00:07:02.755 --> 00:07:05.383
So relapses
may occur if not properly treated.

00:07:06.509 --> 00:07:09.512
The Earth acidic cycle is 44 to 48 hours.

00:07:09.971 --> 00:07:13.933
The infected red blood cells are in large
and may be elongated or braided,

00:07:14.225 --> 00:07:17.228
so the edges of red blood cell
appear to be fringed.

00:07:17.812 --> 00:07:22.066
The rings are large, with sturdy
cytoplasm and 1 or 2 chromatin dots.

00:07:22.775 --> 00:07:25.778
Laid surface sites are compact,
a slightly me buoyed

00:07:26.737 --> 00:07:27.029
paths.

00:07:27.029 --> 00:07:30.158
Monument Valley Skye's arts
contain 6 to 14 Mary sites.

00:07:30.658 --> 00:07:34.662
The Guinea sites are large and round, and
tend to fill the entire red blood cell.

00:07:35.663 --> 00:07:38.666
Plasmodium
malaria has wide global distribution

00:07:38.916 --> 00:07:41.919
being found in South America,
Asia and Africa.

00:07:42.879 --> 00:07:45.882
All stages of Plasmodium
malaria can be seen in peripheral blood.

00:07:46.257 --> 00:07:48.885
Mary Sweat showed preference for mature
red blood cells,

00:07:48.885 --> 00:07:51.888
so in fact the red blood
cells are oftentimes micro acidic.

00:07:52.597 --> 00:07:55.600
The urethra cycle is every 72 hours

00:07:55.766 --> 00:07:58.769
rings of sturdy cytoplasm
with a single chromatin dot.

00:07:59.228 --> 00:08:03.649
The chromatin dot may be encircled by the
cytoplasm, creating a bird's eye form.

00:08:04.275 --> 00:08:07.028
This form may also be seen in pores
may involve sperm,

00:08:07.028 --> 00:08:09.614
but it's more commonly
seen in Plasmodium. Malaria.

00:08:10.573 --> 00:08:11.574
As the trapezoids

00:08:11.574 --> 00:08:15.286
mature, the cytoplasm elongate
across the host red blood cell,

00:08:15.536 --> 00:08:20.541
forming a band form, or may be oval
with a vacuole forming a basket form.

00:08:21.167 --> 00:08:23.794
Chromatin is usually in a single mass,

00:08:23.794 --> 00:08:26.797
with pigment granules visible.

00:08:28.382 --> 00:08:29.258
Pores muddy.

00:08:29.258 --> 00:08:30.092
Malaria skies.

00:08:30.092 --> 00:08:32.887
Aunts have 6 to 12 Mary's voids
that are often arranged

00:08:32.887 --> 00:08:35.890
in a rosette pattern,
with a central mass of pigment.

00:08:36.265 --> 00:08:39.268
Kimia sites are round, small and compact.

00:08:39.685 --> 00:08:41.187
No how this how small?

00:08:41.187 --> 00:08:44.440
The infected red blood cells are compared
to the surrounding red blood cells.

00:08:47.735 --> 00:08:49.904
The ABC has a worldwide distribution,

00:08:49.904 --> 00:08:52.907
with most reported cases in Europe
and the United States.

00:08:53.533 --> 00:08:57.370
There are more than 100 species,
but only a few cause human infections.

00:08:57.954 --> 00:09:02.208
Most infections are asymptomatic,
but manifestations can include fever,

00:09:02.208 --> 00:09:06.462
chills, sweating, fatigue, pallor,
spring a magli and hemolytic anemia.

00:09:08.839 --> 00:09:11.300
Bat BGA infected eggs 46

00:09:11.300 --> 00:09:16.138
injects for insights into the rodent host
during a blood meal spree.

00:09:16.180 --> 00:09:16.514
So it's.

00:09:16.514 --> 00:09:20.810
Enter your three sites and undergo
asexual reproduction in the blood.

00:09:20.810 --> 00:09:23.854
Some parasites differentiate
into male and female gametes.

00:09:24.522 --> 00:09:27.525
Another tick takes a blood meal,
and the gametes unite

00:09:27.733 --> 00:09:30.820
and undergo a cycle, resulting in spores
sites.

00:09:31.362 --> 00:09:35.366
Humans can become infected either
by being fed upon by an infected tick

00:09:35.658 --> 00:09:38.661
or through blood transfusions.

00:09:39.912 --> 00:09:42.915
Baby Asia parasites resemble Plasmodium
falciparum.

00:09:43.040 --> 00:09:46.043
However, BBG has several
distinguishing features.

00:09:46.335 --> 00:09:49.880
The parasites are polymorphic,
so they vary in size and shape.

00:09:50.381 --> 00:09:53.593
They can be evacuated
and they do not produce pigment.

00:09:54.218 --> 00:09:57.555
Berbizier rings can be
teardrop shaped or pure form.

00:09:58.264 --> 00:10:01.726
The rings are small and delicate,
about 161 third.

00:10:01.809 --> 00:10:06.772
The red blood cell diameter
tetrad or Maltese cross forms can be seen.

00:10:07.523 --> 00:10:10.484
Extrasolar rings are commonly
seen and appear as clumps.

00:10:13.821 --> 00:10:16.532
The images and
life cycles are courtesy of the centers

00:10:16.532 --> 00:10:21.037
for Disease Control and as laboratory
diagnostic assistance website DPT.
