coronavirus - college of william & mary
TRANSCRIPT
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CORONAVIRUS
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NANOPARTICLE KILLING MACHINE
12
3
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CORONAVIRUS OUTLINE
• Strains and origin
• Transmission
• Replication
• Pathogenesis
• Cytokine Storm
• Antigen and Antibody Testing
• Treatment
• Vaccines
• Cytotoxic T-cells
• Herd Immunity
• Mouse Model
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• DEFINITIONS
• SARS - Severe acute respiratory syndrome – Viral respiratory illness
• CORONAVIRUS - Any of a family of single stranded RNA viruses that have a lipid envelope studded with club shaped projections. Infect birds and mammals.
• SARS-COV-1 - Virus arising in China in 2002
• SARS-COV-2 - Virus arising in China in 2019
• COVID-19 - SARS caused by Cov-2
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CORONAVIRUS FAMILIES
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CORONAVIRUS FAMILIES
SARS CoV-2 CAME FROMBAT RELATED STRAINS
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• Correspondence
• Published: 17 March 2020
• The proximal origin of SARS-CoV-2
• Kristian G. Andersen, Andrew Rambaut, W. Ian Lipkin, Edward C. Holmes & Robert F. Garry
• Nature Medicine volume 26, pages450–452(2020)
• To the Editor — Since the first reports of novel pneumonia (COVID-19) in Wuhan, Hubei province, China1,2, there has been considerable discussion on the origin of the causative virus, SARS-CoV-23 (also referred to as HCoV-19)4. Infections with SARS-CoV-2 are now widespread, and as of 11 March 2020, 121,564 cases have been confirmed in more than 110 countries, with 4,373 deaths5.
• SARS-CoV-2 is the seventh coronavirus known to infect humans; SARS-CoV, MERS-CoV and SARS-CoV-2 can cause severe disease, whereas HKU1, NL63, OC43 and 229E are associated with mild symptoms6.
• Here we review what can be deduced about the origin of SARS-CoV-2 from comparative analysis of genomic data. We offer a perspective on the notable features of the SARS-CoV-2 genome and discuss scenarios by which they could have arisen.
• Our analyses clearly show that SARS-CoV-2 is not a laboratory construct or a purposefully manipulated virus
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Los Alamos National Lab.
Daily Mail, May 5
MUTANT CLADE D614G
Spike protein
Clade - A group of organism believed to have evolved from a common ancestor.
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G614
NATURAL SELECTION
MUTATIONS THAT PERSISTMAKE VIRUS MORE CONTAGOUSAND LESS VIRULENT
ITALY
CHINA
NEW YORK
Mutant strain of coronavirus has “dominated” the US and Europe –And vaccines in development may NOT work against it.
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MAY 1 2020
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TRANSMISSION
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TO BREAK EPIDEMIC MUST HAVE R0 BELOW 1
TRANSMISSION RATE
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VIRAL REPLICATION
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VIRUS TAKES OVERCELL METABOLICPATHWAYSTO MAKE MOREVIRUS
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AFRICAN GREEN MONKEY KIDNEY CELLS Vero E6; MA 104
CYTOPATHIC EFFECT
CaCo-2 Human colorectal cancer cells
ACE2 EXPRESSION
DOUBLING TIME 24 HOURS
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The Nobel Prize in Physiology or Medicine 1954 was awarded jointly to John Franklin Enders, Thomas HuckleWeller and Frederick Chapman Robbins "for their discovery of the ability of poliomyelitis viruses to grow in cultures of various types of tissue.".
JOHN ENDERS
Not to Jonas Salk or Albert Sabin
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LISINOPRIL - ACE INHIBITOR
SARS CoV2 RECEPTOR ACE – ANGIOTENSIN CONVERTING ENZYME
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Coronavirus
PATHOGENESIS KILLS ACE+ CELLS
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CoV 2 TWO WEEKS
SARS CoV-2 INFECTS BRNCHIAL LINING CELLS AND PNEUMOCYTES
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ACUTE SARS TOXICITY OF BRONCHIAL LINING CELLS CELLS
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CoV 2 TWO + WEEKS
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TWO TYPES OF ALVEOLAR EPITHELIAL CELLS
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LUNG FUNCTION WITH AGING - FORCED EXIRATORY VOLUME
CONUNDRUMNo evidence smokerswith Covid -19 doworse than non-smokers.
NYU LANGONE MEDSIRUS XMDOCTOR’S CHANEL
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ACE IN INTESTINAL CELLS SARS-CoV 2 BINDING TO INTESTINE
1.cytokine storm syndrome2. direct cellular injury due to the virus.
Naicker S, et al. The novel coronavirus 2019 epidemic and kidneys, Kidney Int. 97:824-828, 2020
EXTRAPULMONARY MANIFESTATIONSINTESTINE/KIDNEY
ACE2 IN RENAL TUBULES
Control Labelled
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ITALY - CHICKEN POX-LIKE (T-CELLCYTOXICITY) HIVES-LIKE (ATOPIC) TAILAND DENGUE-LIKE (T-CELL)
TAILAND PETECHE (CYTOTOIC/PLATELETS) US PERNIOSIS/CHILBLANES (?IMMUNE CPLX) LIVIDO RETICULARIS (?ATOPIC)
DERMATOLOGY SOLUTIONS SKIN LESIONS DERMATOLOGIST’S DELIGHT OR DELEMA
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IMMUNE MECHANISM PROTECTIVE DESTRUCTIVE/ DISEASE COVID -19 SKIN LESION
NEUTRALIZATION BLOCK VIRUS BINDING DIABETES, MYASTHENIA GRAVIS
CYTOLYTIC LYSE BACTERIA HEMOLYTIC ANEMIA, PLATELETS PETECHIE
IMMUNE COMPLEX INFLAMMATION VASCULITIS, GLOMERULONEPHRITIS PERNIOSIS/CHILBLANES
ATOPIC/ANAPHYLACTIC VASODILATION ASTHMA, ANAPHYLAXIS, HAY FEVER HIVES, LIVIDO RETICULARIS
DOUBLE EDGED SWORD OF ANTIBODY MEDIATED IMMUNE REACTIONS
Paratope
MANY THINGS CAN HAPPEN WHEN ANTIBIDY-ANTIGEN REACTION OCCURS IN THE BODY (IN VIVO)
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KAWASAKI DISEASE POLYMORPHONUCLEAR MEDIATED VASCULAR NECROSIS IMMUNE COMPLEX MECHANISM
Pediatric Multi-System Inflammatory Syndrome Potentially Associated with COVID-19,' can attack multiple organs, impair heart function and weaken heart arteries.
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NEW SYNDROME MAY 2020
Pediatric Multi-System Inflammatory Syndrome Associated with COVID-19.Can attack multiple organs, impair heart function and weaken heart arteries.102 cases in New York and three children, ages 5, 7, and 18, have died
POSSIBLE COMBINATION OF:
VIRAL INJURY
CYTOKINE STORM
IMMUNE COMPLEX
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• Purple rashes, swollen legs, clogged catheters and sudden death — blood clots, large and small, are a frequent complication of COVID-19
• Endothelial cell infection and/or injury (CYTOTOXIC)
• Inflammation (IMMUNE COMPLEX, CYTOKINE STORM)
BLOOD CLOTTING
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LOSS OF SMELL (ANOSMIA) AND TASTE (DYSGUESIA)
I only have mild coronavirus symptoms but whatever I’ve got has absolutely obliterated my sense of taste and smell. To test I have had:- a teaspoon full of curry powder - a glass of very concentrated grapefruit squash - a clove of garlic none of which taste of anything.
Jon Stone Twitter
DIRECT INFECTION OF CELLSINFLAMMATIONTARGET DECTECTOR CELLS ?
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Figure 1a: A, Image from noncontrast head CT demonstrates
symmetric hypoattenuation within the bilateral medial thalami
(arrows). B, Axial CT venogram demonstrates patency of the
cerebral venous vasculature, including the internal cerebral veins
(arrows). C, Coronal reformat of aCT angiogram demonstrates
normal appearance of the basilar artery and proximal posterior
cerebral arteries.
Acute necrotizing encephalopathy (ANE) is a rare
complication of influenza and other viral infections and has
been related to intracranial cytokine storms, which result in
blood-brain-barrier breakdown, but without direct viral
invasion or parainfectious demyelination (3). Accumulating
evidence suggests that a subgroup of patients with severe
COVID-19 might have a cytokine storm syndrome (4).
Reviews and CommentaryFree Access
Images in Radiology
COVID-19–associated Acute Hemorrhagic Necrotizing Encephalopathy: CT
and MRI FeaturesNeo Poyiadji, Gassan Shahin, Daniel Noujaim, Michael Stone, Suresh Patel, Brent Griffith
Author Affiliations
•From the Department of Radiology, Henry Ford Health System, 2799 West Grand Blvd Detroit MI 48202.
•Address correspondence to B.G. (email: [email protected]).
BRAIN
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HEART INCREASED HYPOXIA FROM LUNG DAMAGE
EXACERBATED BY HYDROXYCHLOROQUINE
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CYTOKINE STORM
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WILLIAM COLEY1892
1890’s WILLIAM COLEY
1893 - Coley produces Coley's toxin - extract of cultures of S. Pyogenes and B. prodigiosus (endotoxin producer)
1893 - Coley treats John Ficken, 13 year old boy with inoperable metastatic tumors by direct injection of toxin into tumors, severe fever and chills, tumors go away
1913 - Coley has treated over 500 patients, claims many remissions. However, others not successful. considerable controversy.
1926 - Some anecdotal cases of remission still reported.
Dr. Coley's experience with occasional incredible cures, lack of consistency and failure of others to duplicate results haunts cancer immunotherapy to this day.
In 1920's Coley's toxins not accepted for cancer therapy as radiation therapy becomes in vogue.
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STEPHEN S. HALL
A COMMOTION IN THE BLOOD
HENRY HOLT & CO.NEW YORK
1997
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CYTOKINE STORM MEDIATORSPRODUCED BY T-CELLS MACROPHAGES
IL-2 T-CELL PROLIFERATION IL-1 T-CELL ACTIVATIONIL-3 STIMULATES HEMATOPOIESIS IL-12 ACTIVATES NK CELLSIL-4 STIMULATES B-CELLS (IgE, IgA) Th1 DIFFERENTIATIONIL-5 EOSINOPHIL DIFFERENTIATION IL-18 STIMULATES INF-γIL 6 MUTIPLE EFFECTS Th1 DIFFRENTIATIONIL-8 ATTRACTS/ACTIVATES PMNs TGF-β INHIBITS CELL GROWTHIL-9 ACTIVATES MAST CELLS INF-α INCREASES MHC I EXPRESSIONIL-10 SUPRESSES MACROPHAGES TNF-α ACTIVATES ENDOTHLIAL CELLSIL-13 Th2 DIFFERENTIATION (CACHEXIN) TUMOR NECROSISIL-15 ACTIVATES NK CELLSIL-16 ATTRACTS CD4+T-CELLSIL-17 MUTIPLEINF-γ ACTIVATES MACROPHAGESTNF-β KILLS CELLS
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IL-6 PRODUCED BY MANY CELL TYPES UNDER STRESS
ACTIVATES MANY CELL TYPES
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TOCILIZUMAB (ACTEMRA)HUMAN MONOCLONAL ANTIBODY TO IL-6 RECEPTOR
BLOCKS IL-6 REACTION WITH RECEPTOR
CLINICAL TRIALS PLANNED ESTIMATED START DATE MAY 30, 2020
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ANTIGENNASAL SECRETIONSSALIVA
PCR AND IMMUNE LABELING
ANTIBODY SERUM
IMMUNE LABELING
CORONAVIRUS TESTING
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DNAP – DNA POLYMERASE
NASAL/SALIVART-PCR REAL TIME POLYMERASE CHAIN REACTION
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EACH TIME AN DNA COPY IS PRODUCEDA FLUORESCENT LABEL IS RELEASEDAND THIS IS DETECTED BY ABSORPTIONAND EMISSION SHIFT
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TEST FOR ANTIGEN
TEST FOR ANTIBODY
IMMUNOLABELLING TESTS
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FLUORECENCENT LABELLED M0USE MONOCLONAL ANTIBODY BINDING TO SARS CoV-2 SPIKE PROTEIN IN INFECTED BHK TISSUE CULTURE CELLS NUCLEI COUNTERSTAINED WITH DAPI (BLUE)
BHKBABY HAMSTER KIDNEY
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PROBLEM FALSE NEGATIVES
CORIS SARS -CoV STRIP TEST FOR ANTIGEN
CONTROL LINE VIRAL ANTIGEN POSITIVE
TEST LINE CAPTURE ANTI-VIRAL ANTIGEN
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San Diego–based Quidel describes the Sofia 2 SARS Antigen FIA as a rapid point-of-care test to be used with the Sofia 2 fluorescent immunoassay analyzer.
Kit cost ?$500 25 tests
$910.95
$618.00
IMMUNOLABELLING FOR NUCLEOCAPSID ANTIGEN
FDA APPROVED
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May 8, 2020
Today, the U.S. Food and Drug Administration authorized the first diagnostic test with the option of using home-collected saliva samples for COVID-19 testing. Specifically, the FDA issued an emergency use authorization (EUA) to Rutgers Clinical Genomics Laboratory for their COVID-19 laboratory developed test (LDT), which had been previously added to the high complexity molecular-based LDT “umbrella” EUA, to permit testing of samples self-collected by patients at home using the Spectrum Solutions LLC SDNA-1000 Saliva Collection Device. This announcement builds on last month’s EUA for the first diagnostic test with a home-collection option, which uses a sample collected from the patient’s nose with a nasal swab and saline.
SALIVA TEST
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ENTERTAINMENT INDIA
Madonna Tests Positive For Coronavirus Antibodies
ANTIBODIES
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NEUTRALIZING ANTIBODY TEST
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TESTS FOR ANTIBODY
BINDS ANTIGEN
BIOLOGIC PROPERTIES
Ig CLASS ANTIGENS ANTI-Ig
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ANTIBODY CLASSES
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COVID 19 ANTIBODY TEST KIT $250
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POSITIVE CONTROL
DILEMA
WHAT TO USEAS COVID-19 ANTIGEN?
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SPECIFIC ANTIBODIESDETECTEDIN SARSPATIENTS
S-PROTEINNUCLEOCAPSID
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RocheElecsys Anti-SARS-Cov 2
Electrochemiluninence
Nucleocapsid antigen
500 tests per day at $100/testFDA APPROVED
Electrochemiluminescence (electrogenerated chemiluminescence, ECL) is an energy- relaxation process by optical emission of an excited molecule produced by an applied potential at an electrode surface [1–7].
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Cohort Sample number (N) Reactive Specificity % (95 % CI*)
Diagnostic routine 3420 7 99.80 % (99.58 – 99.92 %)
Blood donors 1772 3 99.83 % (99.51 – 99.97 %)
Common cold panel 40 0 100 % (91.19 – 100 %)
Coronavirus panel 40 0 100 % (91.19 – 100 %)
Overall 5272 10 99.81 % (99.65 – 99.91 %)
Days post PCR confirmation Sample number (N) Sensitivity (95 % CI)
0 – 6 days 116 65.5 % (56.1 – 74.1 %)
7 – 13 days 59 88.1 % (77.1 – 95.1 %)
≥14 days 29 100 % (88.1 – 100 %)
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WHY HAVE WE BEEN
SO FAR BEHIND IN TESTING?
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INFECTION OF PETS?
• Washington, D.C. April 22, 2020 – The U.S. Centers for Disease Control and Prevention (CDC) and the United States Department of Agriculture’s (USDA) National Veterinary Services Laboratories (NVSL) today announced the first confirmed cases of SARS-CoV-2 (the virus that causes COVID-19) infection in two pet cats. These are the first pets in the United States
• Public health officials are still learning about SARS-CoV-2, but there is no evidence that pets play a role in spreading the virus in the United States. Therefore, there is no justification in taking measures against companion animals that may compromise their welfare. Further studies are needed to understand if and how different animals, including pets, could be affected.
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1914 serum samples from 35 animal species were
used for detection SARS‐CoV‐2 specific antibodies
using double antigen sandwich ELISA after validating
its specificity and sensitivity.
no SARS‐CoV‐2 specific antibodies were detected
Serological survey of SARS‐CoV‐2 for experimental, domestic, companion and wild animals excludes
intermediate hosts of 35 different species of animals
Junhua Deng Yipeng Jin Yuxiu Liu Jie Sun Liying Hao Jingjing Bai Tian Huang Degui Lin Yaping
Jin Kegong Tian. Transboundry and Emerging Diseases. April 17, 2020
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TREATMENT AND PREVENTION
109
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MOUSE MODEL MACQUES
DRUG DISCOVERY FLOW CHART
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Actemra, Kevzara IL-6 INHIBITORS
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NIH study reduced hospitalization by 4 days (15 to 11)
Previous study in China showed no effect (Discontinued)
Side effects. Nausea, vomiting, increased liver enzymes
Emergency (Compassionate) approval by FDA
Other trials still underway.
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VITAMIN D CONCENTRATIONS ABOVE 50 ng/ml WERE ASOCIATED WITH A 25% REDUCTION IN INFLUENZA-LIKE ILLNESSES
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MP –METHYLPREDNISONE SOURCE OF DATA UNKNOWN
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CONVALESCENT PLASMA THERAPYNOT STANDARDIZED
REQUIRES DONATIONPOSITIVE EFFECT: ONLY PRELIMINARY DATA FOR COVID -19
HUMANIZED MONOCLONAL ANTIBODYSTANDARDIZEDLAB MADE
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scFv – Single chain variable fragmentAntigen binding site - paratope
DNAInfected phage display protein scFvBind antigen
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VACCINES INACTIVATION / NEUTRALIZATION
TOXIN NEUTRALIZATIONBACTERIA TOXINS
TETANUS DIPHTHERIA PERTUSSIS CHOLERA ANTHRAX
RECEPTOR BLOCKADEVIRUSES
MEASLES FLU EBOLA HEPATITISHERPESPOLIOPAPILLOMA ETC.
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SARS CoV-2 POTENTIAL IMMUNOGENS
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S-PROTEIN VACCINES
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•egg-based flu vaccine,
•cell-based flu vaccine, and
•recombinant flu vaccine.
Most common
Egg-based vaccine manufacturing is used to make
both inactivated (killed) vaccine (usually called the “flu
shot”) and live attenuated (weakened) vaccine (usually
called the “nasal spray flu vaccine
ANTIGENIC COMPONENTS OF HEMGGLUTININ CHANGE EVERY FLU SEASON, NEW VARIENTS ARE SELECTED FOR EACH YEAR,
INFLUENZA VACCINE KILLED OR WEAKENED VIRUS
HEMAGGLUTININ
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MODERNAmRNA-1273Spike protein
DA approved forPhase 2 clinical trials
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TEST FOR ANTIBODY TEST FOR ANTIBODY DOUBLE BLIND
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VARIOUS LEVELS OF VIRAL PROTECTIVE IMMUNITY
1. ANTI-VIRUS 2. ANTI-CELL MEMBRANE 3. T-CTL
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DOUBLE EDGED SWORD OF CELL MEDIATED IMMUNE REACTIONS
T-CELL MEDIATED IMMUNE MECHANISMS
T-CYTOTOXIC DELAYED HYPERSENSITIVITY
IMMUNE MECHANISM PROTECTIVE DESRUCTIVE
T-CYTOTOXIC KILL VIRUS INFECTED CELLS THYROIDITIS, CHRON’S DISEASE
DELAYED HYPERSENSITIVITY TUBERCULOSIS, SYPHILIS SARCOIDOSIS, SILICOSIS
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CYTOTOXIC T CELLS
Antigen
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COV 2 TWO WEEKS
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WHAT IF ANTIBODY DOSEN’T WORKSARS COV2 INFECTS EPITHELIUM
CIRCULATING ANTIBODY MAY HAVE LIMITED ACCESS TO INFECTED BRONCHIAL EPITHELIAL CELLS
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BRONCHUS NORMAL – NOT INFECTED
GOBLET CELLS
BASEMENTMEMBRANE
LYMPHOCYTES
ARTERY
SUZY SWAINU. MASS
KAI McKINSTRYUCF
TARA STRUTTUCF
FLU INFECTED – DAY 8
EXPERIMENTAL INFLUENZA MOUSE MODEL
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Br
H&E
BRONCHIAL EPITHELIUM AND TYPE II PNEUMOCYTSINFILTRATED BY T-CELLS – DAY 8
CD3 CD3
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MOUSEFLU
PASSIVETRANFEROF MEMORYT-CELLS
HUMANCOVID 19
NORMALINFECTED
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NORMAL SKIN CONTACT DERMATITIS
CONTACT DERMATITIS-LIKE LESION IN THE LUNG
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NICKEL DERMATITIS
MEASLESPOISON IVY
SMALLPOX
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COVID 19 - POISON IVY OF THE LUNG
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Sell, S McKinstry KK, Strutt TM. Mouse models reveal role of T-Cytotoxic and T-Reg cells in immune response to Influenza: Implications for vaccine design. Viruses. 2019 11,52, doi:10.3390/v11010052
HOW TO DIRECT IMMUNE RESPONSE TO CYTOTOXIC T-CELLS
SMALLPOXVACCINATION TAKE
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OR NONE OF THE ABOVESEASONAL OR RANDOM OUTBREAKS
kill humans
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HERD IMMUNITY
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MITIGATION MIXED HEARD IMMUNITY
CHINA US BRAZILSOUTH KOREA EUROPE SWEDENNEW ZEALAND
?
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CONTACT TRACING
IDENTIFICATIONTRACINGISOLATEFOLLOW UP
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At its simplest, digital contact tracing might work like this: Phones log their own locations; when the owner of a phone tests positive for COVID-19, a record of their recent movements is shared with health officials; owners of any other phones that recently came close to that phone get notified of their risk of infection and are advised to self-isolate.
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HOW TO HANDLE?
• ECONOMISTS OPEN
• EPIDEMIOLOGISTS CLOSE
• ETHTHESISTS DOLLARS VS LIVES
THE PANDEMIC PROBLEM
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MOUSE MODEL
FAST TRACK TO STUDY
PATHOGENESISIMMUNE RESPONSETREATMENTVACCINATION
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Angiotensin converting enzyme – angiotensin is a vasoconstrictive peptide
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K18-hACE2 transgenic mouse for coronavirus research
In 2007, Dr. Paul McCray, et al from the University of Iowa published a study in which they introduced a vector carrying a human ACE2-coding sequence into wild-type mice and subsequently developed a successful hACE2 transgenic mouse strain. ACE2 expression, which is regulated by the human cytokeratin 18 (K18) promoter in epithelial cells, was observed in the initially infected airway epithelial cells. Studies showed that the K18-hACE2 transgenic mouse infected with a human SARS-CoV strain via intranasal inoculation would not survive.
•
• Virol. 2007 Jan;81(2):813-21. Epub 2006 Nov 1.
• Lethal infection of K18-hACE2 mice infected with severe acute respiratory syndrome coronavirus.
• McCray PB Jr1, Pewe L, Wohlford-Lenane C, Hickey M, Manzel L, Shi L, Netland J, Jia HP, Halabi C, Sigmund CD, MeyerholzDK, Kirby P, Look DC, Perlman S.
• The severe acute respiratory syndrome (SARS), caused by a novel coronavirus (SARS-CoV), resulted in substantial morbidity, mortality, and economic losses during the 2003 epidemic. While SARS-CoV infection has not recurred to a significant extent since 2003, it still remains a potential threat. Understanding of SARS and development of therapeutic approaches have been hampered by the absence of an animal model that mimics the human disease and is reproducible. Here we show that transgenic mice that express the SARS-CoV receptor (human angiotensin-converting enzyme 2 [hACE2]) in airway and other epithelia develop a rapidly lethal infection after intranasal inoculation with a human strain of the virus. Infection begins in airway epithelia, with subsequent alveolar involvement and extrapulmonary virus spread to the brain. Infection results in macrophage and lymphocyte infiltration in the lungs and upregulation of proinflammatory cytokines and chemokines in both the lung and the brain. This model of lethal infection with SARS-CoV should be useful for studies of pathogenesis and for the development of antiviral therapies.
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Weight loss and virus replication in lung were observed in hACE2 mice
infected with SARS-CoV-2. The typical histopathology was interstitial
pneumonia with infiltration of significant lymphocytes and monocytes in
alveolar interstitium, and accumulation of macrophages in alveolar
cavities. Viral antigens were observed in the bronchial epithelial cells,
alveolar macrophages and alveolar epithelia. The phenomenon was not
found in wild type mice with SARS-CoV-2 infection. against SARS-CoV-2
The Pathogenicity of SARS-CoV-2 in hACE2 Transgenic MiceLinlin Bao, Wei Deng, Baoying Huang, Hong Gao, Jiangning Liu, Lili Ren, Qiang Wei, Pin Yu, Yanfeng Xu, FeifeiQi, Yajin Qu, Fengdi Li, Qi Lv, Wenling Wang, Jing Xue, Shuran Gong, Mingya Liu, Guanpeng Wang, Shunyi W
ang, Zhiqi Song, Linna Zhao, Peipei Liu, Li Zhao, Fei Ye, Huijuan Wang, Weimin Zhou, Na Zhu, Wei Zhen, Haisheng Yu, Xiaojuan Zhang, Li Guo, Lan Chen, Conghui Wang, Ying Wang, Xinming Wang, Yan Xiao, QiangmingSun, Hongqi Liu, Fanli Zhu, Chunxia Ma, Lingmei Yan, Mengli Yang, Jun Han, Wenbo Xu, Wenjie Tan, Xiaozhong Peng, Qi Jin, Guizhen Wu, Chuan Qin. Prepublication. Cold Spring Harbor bioRxiv, February 2020.
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UPDATE 2/25/2020: This model is now available for preorder. JAX is using state-of-the-art breeding techniques to rapidly build this colony. We will notify those who preorder when the mice are available for distribution. To learn more about this mouse model and other infectious disease models from The Jackson Laboratory please contact: [email protected] - 1.800.422.6423 (US) - 1.207.288.5845 (International).
ABAILABLE FROM JACKSON LABORATORY
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CORONAVIRUS OUTLINE• Strains and origin
• Transmission
• Replication
• Pathogenesis
• Cytokine Storm
• Antigen and Antibody Testing
• Treatment
• Vaccines
• Cytotoxic T-cells
• Herd Immunity
• Mouse Model
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Evidence suggestive. Conclusion. Why not?