1.Nucleotide Sequence and phylogenetic Analysis of Hantaviruses Isolated from Patients with Hemorrhagic Fever with Renal Syndrome (HFRS) in Korea.
Jung Sang LEE ; Cu Rie AHN ; Suhng Gwon KIM ; Chun Soo LIM ; Jong Tae CHO ; Ho Jun CHIN ; Yoon Chul JUNG ; Jin Suk HAN ; C J PETERS
Journal of the Korean Society for Microbiology 1998;33(2):149-162
Eleven hantavirus isolates were obtained by innoculation of viremic blood, urine, or autopsy tissue specimens from ten HFRS patients, and sera were obtained from five patients with HFRS. The disease was diagnosed by clinical manifestations and indirect immunofluorescent antibody technique. We obtained 6 hantaviruses from gene bank. So, we analyzed 22 hantavirus samples to elucidate the genetic diversity. The hantaviral RNAs were extracted and 365 base-pair complementary DNAs of M segment were obtained by reverse transcriptase polymerase chain reaction (RT-PCR) and 326 base-pair by nested PCR. The nucleotide sequences of amplified cDNA fragments were determined by the direct sequencing method using automatic DNA sequence analyzer. We got full M segment sequences of 28 reported hantaviruses with medline searching, and aligned them with our 22 samples, and the phylogenetic analysis for nucleotide and amino acid sequences were done by the Clustal method. The nucleotide and amino acid sequences of Hantaan virus 17 samples showed high (above 90%) homology with 76-118 strain, but 2 samples showed significant differences with 76-118 strain and with other 17 samples. The 3 Seoul virus samples showed high intraspecies differences in 1 sample, and showed singnificant differences with SR-11 strain. In phyogenetic tree analysis, Puumala virus and Hantavirus pulmonary syndrome viruses showed high homology, but Hantaan and Seoul viruses showed significant genetic diversity among strains. In conclusion, hantaviruses isolated from HFRS patients showed genetic diversity compared with those isolated from rodent hosts.
Amino Acid Sequence
;
Autopsy
;
Base Sequence*
;
DNA, Complementary
;
Genetic Variation
;
Hantaan virus
;
Hantavirus Pulmonary Syndrome
;
Hantavirus*
;
Hemorrhagic Fever with Renal Syndrome*
;
Humans
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Korea*
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Polymerase Chain Reaction
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Puumala virus
;
Reverse Transcriptase Polymerase Chain Reaction
;
RNA
;
Rodentia
;
Seoul virus
2.On pandemics and pivots: a COVID-19 reflection on envisioning the future of medical education
Heeyoung HAN ; Amy CLITHERO-ERIDON ; Manuel João COSTA ; Caitriona A. DENNIS ; J. Kevin DORSEY ; Kulsoom GHIAS ; Alex HOPKINS ; Kauser JABEEN ; Debra KLAMEN ; Sophia MATOS ; John D. MELLINGER ; Harm PETERS ; Suzanne PITAMA ; C. Leslie SMITH ; Susan F. SMITH ; Boyung SUH ; Sookyung SUH ; Marko ZDRAVKOVIĆ
Korean Journal of Medical Education 2021;33(4):393-404
The required adjustments precipitated by the coronavirus disease 2019 crisis have been challenging, but also represent a critical opportunity for the evolution and potential disruptive and constructive change of medical education. Given that the format of medical education is not fixed, but malleable and in fact must be adaptable to societal needs through ongoing reflexivity, we find ourselves in a potentially transformative learning phase for the field. An Association for Medical Education in Europe ASPIRE Academy group of 18 medical educators from seven countries was formed to consider this opportunity, and identified critical questions for collective reflection on current medical education practices and assumptions, with the attendant challenge to envision the future of medical education. This was achieved through online discussion as well as asynchronous collective reflections by group members. Four major themes and related conclusions arose from this conversation: Why we teach: the humanitarian mission of medicine should be reinforced; what we teach: disaster management, social accountability and embracing an environment of complexity and uncertainty should be the core; how we teach: open pathways to lean medical education and learning by developing learners embedded in a community context; and whom we teach: those willing to take professional responsibility. These collective reflections provide neither fully matured digests of the challenges of our field, nor comprehensive solutions; rather they are offered as a starting point for medical schools to consider as we seek to harness the learning opportunities stimulated by the pandemic.