Portal:COVID-19
COVID-19 portal
Coronavirus disease 2019 (COVID-19), also known as the coronavirus or COVID, is a contagious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The first known case was identified in Wuhan, China, in December 2019. The disease has since spread worldwide, leading to an ongoing pandemic.
Several testing methods have been developed to diagnose the disease. The standard diagnostic method is by detection of the virus' nucleic acid by real-time reverse transcription polymerase chain reaction (rRT-PCR), transcription-mediated amplification (TMA), or by reverse transcription loop-mediated isothermal amplification (RT-LAMP) from a nasopharyngeal swab.
Preventive measures include physical or social distancing, quarantining, ventilation of indoor spaces, covering coughs and sneezes, hand washing, and keeping unwashed hands away from the face. The use of face masks or coverings has been recommended in public settings to minimize the risk of transmissions. Several vaccines have been developed and many countries have initiated mass vaccination campaigns. (Full article...)
About the virus
SARS‑CoV‑2 belongs to the broad family of viruses known as coronaviruses. It is a positive-sense single-stranded RNA (+ssRNA) virus, with a single linear RNA segment. Other coronaviruses are capable of causing illnesses ranging from the common cold to more severe diseases such as Middle East respiratory syndrome (MERS, fatality rate ~34%). It is the seventh known coronavirus to infect people, after 229E, NL63, OC43, HKU1, MERS-CoV, and the original SARS-CoV.
Like the SARS-related coronavirus implicated in the 2003 SARS outbreak, SARS‑CoV‑2 is a member of the subgenus Sarbecovirus (beta-CoV lineage B). Coronaviruses also undergo frequent recombination. Its RNA sequence is approximately 30,000 bases in length, relatively long for a coronavirus. SARS‑CoV‑2 is unique among known betacoronaviruses in its incorporation of a polybasic site cleaved by furin, a characteristic known to increase pathogenicity and transmissibility in other viruses. (Full article...)
About the symptoms and spread
Symptoms of COVID-19 are variable, ranging from mild symptoms to severe illness. Common symptoms include headache, loss of smell and taste, nasal congestion and runny nose, cough, muscle pain, sore throat, fever, diarrhea, and breathing difficulties. People with the same infection may have different symptoms, and their symptoms may change over time. Three common clusters of symptoms have been identified: one respiratory symptom cluster with cough, sputum, shortness of breath, and fever; a musculoskeletal symptom cluster with muscle and joint pain, headache, and fatigue; a cluster of digestive symptoms with abdominal pain, vomiting, and diarrhea. In people without prior ear, nose, and throat disorders, loss of taste combined with loss of smell is associated with COVID-19.
As is common with infections, there is a delay between the moment a person first becomes infected and the appearance of the first symptoms. The median delay for COVID-19 is four to five days. Most symptomatic people experience symptoms within two to seven days after exposure, and almost all will experience at least one symptom within 12 days. (Full article...)
The virus is transmitted mainly through the respiratory route after an infected person coughs, sneezes, sings, talks, or breathes. A new infection occurs when virus-containing particles exhaled by an infected person, either respiratory droplets or aerosols, get into the mouth, nose, or eyes of other people who are in close contact with the infected person. During human-to-human transmission, an average 1000 infectious SARS-CoV-2 virions are thought to initiate a new infection. (Full article...)
Disease progress
Location[a] | Cases[b] | Deaths[c] | Recov.[d] | Ref. | |
---|---|---|---|---|---|
World[e] | 154,371,149 | 3,227,968 | 90,951,195 | [2] | |
United States[f] | 32,680,630 | 584,116 | No data | [9] | |
India | 20,282,833 | 222,408 | 16,613,292 | [10] | |
Brazil | 14,860,812 | 411,854 | 13,442,996 | [11][12] | |
France[g] | 5,680,378 | 105,387 | No data | [13][14] | |
Turkey[h] | 4,929,118 | 41,527 | 4,554,037 | [18] | |
Russia[i] | 4,847,489 | 111,895 | 4,464,550 | [19] | |
United Kingdom[j] | 4,423,796 | 127,543 | No data | [21] | |
Italy | 4,059,821 | 121,738 | 3,524,194 | [22] | |
Spain[k] | 3,544,945 | 78,399 | No data | [23] | |
Germany[l] | 3,448,182 | 84,285 | 3,061,083 | [25][24] | |
Argentina[m] | 3,047,354 | 65,202 | 2,717,395 | [27] | |
Colombia | 2,919,805 | 75,627 | 2,737,757 | [28] | |
Poland | 2,811,951 | 68,482 | 2,540,684 | [29] | |
Iran | 2,575,737 | 73,219 | 2,022,586 | [30] | |
Mexico | 2,352,964 | 217,740 | 1,875,211 | [31] | |
Ukraine[n] | 2,090,986 | 45,077 | 1,697,358 | [32][33] | |
Peru | 1,818,689 | 62,674 | 1,766,872 | [34][35] | |
Indonesia | 1,686,373 | 46,137 | 1,541,149 | [36] | |
Czech Republic | 1,639,248 | 29,479 | 1,568,630 | [37] | |
South Africa | 1,586,148 | 54,511 | 1,509,656 | [38][39] | |
Netherlands[o] | 1,524,527 | 17,221 | No data | [41][42] | |
Canada[p] | 1,247,298 | 24,385 | 1,139,978 | [45] | |
Chile[q] | 1,219,064 | 26,696 | 1,155,630 | [49] | |
Iraq | 1,086,141 | 15,608 | 971,793 | [50] | |
Philippines | 1,073,555 | 17,800 | 993,042 | [51][52] | |
Romania | 1,059,331 | 28,474 | 1,000,451 | [53] | |
Belgium[r] | 999,627 | 24,367 | No data | [55][56] | |
Sweden | 988,554 | 14,091 | No data | [57] | |
Pakistan | 841,636 | 18,429 | 738,727 | [58] | |
Israel[s] | 838,688 | 6,369 | 831,084 | [59] | |
Portugal | 837,715 | 16,981 | 797,901 | [60][61] | |
Hungary | 784,837 | 28,045 | 532,990 | [62] | |
Bangladesh | 767,338 | 11,755 | 698,465 | [63][64] | |
Jordan | 714,173 | 8,925 | 691,218 | [65] | |
Serbia[t] | 694,473 | 6,456 | No data | [66] | |
Switzerland[u] | 665,585 | 10,056 | 317,600 | [67][68] | |
Austria | 624,595 | 10,291 | 593,684 | [69] | |
Japan[v] | 612,360 | 10,470 | 538,946 | [70] | |
Lebanon | 529,205 | 7,368 | 472,133 | [71] | |
United Arab Emirates | 527,266 | 1,598 | 507,706 | [72] | |
Morocco[w] | 512,285 | 9,038 | 499,089 | [73] | |
Saudi Arabia | 421,300 | 7,006 | 404,707 | [74] | |
Malaysia | 420,632 | 1,574 | 387,542 | [75] | |
Bulgaria | 406,192 | 16,609 | 342,226 | [76][77] | |
Ecuador | 391,242 | 18,863 | 329,582 | [78][79] | |
Slovakia | 383,609 | 11,855 | No data | [80] | |
Panama | 365,619 | 6,248 | 355,499 | [81] | |
Belarus | 362,594 | 2,582 | 353,081 | [82] | |
Nepal | 351,005 | 3,417 | 287,790 | [83] | |
Greece | 349,936 | 10,668 | No data | [84] | |
Croatia | 336,918 | 7,264 | 318,621 | [85] | |
Kazakhstan | 330,071 | 3,762 | 281,708 | [86][87] | |
Azerbaijan[x] | 322,761 | 4,597 | 296,875 | [88] | |
Georgia[y] | 313,742 | 4,183 | 295,458 | [89] | |
Tunisia | 312,747 | 10,915 | 264,730 | [90] | |
Bolivia | 310,572 | 13,082 | 255,928 | [91] | |
Palestine | 298,921 | 3,296 | 277,673 | [92] | |
Paraguay | 286,667 | 6,722 | 237,276 | [93] | |
Kuwait | 279,085 | 1,601 | 262,582 | [94] | |
Dominican Republic | 268,070 | 3,504 | 229,368 | [95] | |
Ethiopia | 259,354 | 3,772 | 202,679 | [96] | |
Costa Rica | 257,980 | 3,310 | 206,319 | [97] | |
Denmark[z] | 254,482 | 2,491 | 242,159 | [98][99] | |
Lithuania | 252,699 | 3,993 | 227,526 | [100][101] | |
Moldova[aa] | 251,504 | 5,869 | 241,553 | [102] | |
Ireland | 250,672 | 4,908 | No data | [103] | |
Slovenia | 242,777 | 4,273 | No data | [104][105] | |
Egypt[ab] | 231,803 | 13,591 | 173,341 | [106] | |
Guatemala | 230,095 | 7,606 | 207,862 | [107] | |
Armenia | 217,407 | 4,165 | 201,107 | [108] | |
Honduras | 215,833 | 5,386 | 79,350 | [109][110] | |
Qatar | 208,232 | 483 | 195,521 | [111] | |
Uruguay | 206,946 | 2,861 | 179,480 | [112][113] | |
Venezuela | 200,067 | 2,172 | 181,449 | [114] | |
Bosnia and Herzegovina | 199,463 | 8,713 | 161,369 | [115] | |
Oman | 197,802 | 2,062 | 179,175 | [116] | |
Bahrain | 181,880 | 663 | 169,852 | [117] | |
Libya | 178,672 | 3,049 | 164,663 | [118] | |
Nigeria | 165,233 | 2,063 | 155,381 | [119] | |
Kenya | 160,904 | 2,806 | 109,217 | [120] | |
North Macedonia | 152,814 | 4,992 | 134,653 | [121] | |
Myanmar | 142,858 | 3,209 | 131,997 | [122] | |
Albania | 131,327 | 2,402 | 112,626 | [123][124] | |
South Korea | 124,945 | 1,847 | 114,944 | [125][126] | |
Estonia | 123,781 | 1,183 | 114,033 | [127][128] | |
Algeria | 122,717 | 3,280 | 85,534 | [129] | |
Latvia | 120,378 | 2,159 | 110,153 | [130][131] | |
Puerto Rico | 117,690 | 2,323 | No data | [132][133] | |
Sri Lanka | 115,590 | 709 | 99,153 | [134][135] | |
Norway[ac] | 115,159 | 757 | 88,952 | [138] | |
Cuba[ad] | 110,644 | 686 | 104,326 | [139][140] | |
Kosovo | 105,711 | 2,191 | 96,012 | [141] | |
Montenegro | 97,813 | 1,510 | 94,012 | [142] | |
Kyrgyzstan | 96,561 | 1,630 | 90,146 | [143] | |
Ghana | 92,683 | 779 | 90,324 | [144] | |
Zambia | 91,804 | 1,254 | 90,166 | [145] | |
Uzbekistan | 92,320 | 655 | 88,258 | [146] | |
China[ae] | 90,721 | 4,636 | 85,766 | [147] | |
Finland[af] | 87,529 | 916 | 31,000 | [150][151] | |
Thailand | 74,900 | 318 | 44,360 | [152][153] | |
Cameroon | 70,607 | 1,064 | 57,821 | [154][155] | |
Mozambique | 70,031 | 817 | 67,342 | [156] | |
El Salvador | 69,727 | 2,137 | 65,264 | [157] | |
Luxembourg | 67,642 | 800 | 64,260 | [158] | |
Cyprus[ag] | 66,911 | 321 | No data | [159] | |
Singapore | 61,252 | 31 | 60,823 | [160] | |
Afghanistan | 61,162 | 2,664 | 53,750 | [161] | |
Namibia | 48,654 | 643 | 46,238 | [162] | |
Ivory Coast | 46,173 | 291 | 45,694 | [163][164] | |
Jamaica | 46,087 | 793 | 21,646 | [165][166] | |
Botswana[ah] | 44,169 | 702 | 42,309 | [168] | |
Uganda | 42,032 | 342 | 41,652 | [169][170] | |
Mongolia | 41,524 | 130 | 25,641 | [171] | |
Senegal | 40,492 | 1,110 | 39,214 | [172] | |
Zimbabwe | 38,327 | 1,574 | 35,775 | [173] | |
Madagascar | 37,751 | 677 | 28,868 | [174][175] | |
Malawi | 34,123 | 1,149 | 32,123 | [176] | |
Donetsk PR[ai] | 33,734 | 2,551 | 26,664 | [177] | |
Sudan | 33,648 | 2,365 | 27,247 | [178] | |
Malta | 30,381 | 416 | 29,677 | [179] | |
Maldives | 30,237 | 74 | 24,927 | [180] | |
DR Congo[aj] | 30,071 | 770 | 26,282 | [181][182] | |
Australia[ak] | 29,852 | 910 | No data | [183] | |
Angola | 27,284 | 609 | 24,190 | [184] | |
Rwanda | 25,351 | 337 | 23,523 | [185][186] | |
Cape Verde | 24,742 | 228 | 21,269 | [187] | |
Gabon | 23,201 | 140 | 19,740 | [188] | |
Syria[al] | 22,977 | 1,610 | 17,399 | [189] | |
Guinea | 22,368 | 146 | 19,892 | [190] | |
French Polynesia | 18,771 | 141 | 18,606 | [191] | |
Mauritania | 18,503 | 455 | 17,768 | [192][193] | |
Eswatini | 18,461 | 671 | 17,758 | [194] | |
Cambodia | 16,299 | 107 | 5,791 | [195] | |
Abkhazia[am] | 14,666 | 222 | 13,660 | [196] | |
Somalia[an] | 14,121 | 721 | 6,009 | [197] | |
Mali | 13,937 | 491 | 8,759 | [198] | |
Tajikistan | 13,714 | 91 | 13,218 | [199][200] | |
Guyana | 13,656 | 306 | 11,596 | [201] | |
Burkina Faso | 13,339 | 161 | 13,081 | [202][203] | |
Andorra | 13,316 | 127 | 12,818 | [204] | |
Haiti | 13,149 | 260 | 12,151 | [205] | |
Togo | 13,037 | 123 | 11,306 | [206] | |
Belize | 12,675 | 323 | 12,254 | [207] | |
Curaçao | 12,217 | 111 | 11,816 | [208] | |
Hong Kong | 11,791 | 210 | 11,451 | [209] | |
Trinidad and Tobago | 11,706 | 185 | 8,832 | [210][211] | |
Papua New Guinea | 11,273 | 121 | 9,773 | [212] | |
Djibouti | 11,247 | 147 | 10,901 | [213] | |
Congo[ao] | 11,016 | 147 | 8,208 | [214][215] | |
Lesotho | 10,749 | 319 | 6,267 | [216] | |
Aruba | 10,704 | 100 | 10,467 | [217] | |
Suriname | 10,623 | 212 | 9,542 | [218] | |
South Sudan | 10,613 | 115 | 10,312 | [219] | |
Bahamas[ap] | 10,576 | 210 | 9,579 | [220] | |
Guam[aq] | 8,004 | 137 | 7,767 | [9][221] | |
Benin | 7,884 | 100 | 7,652 | [222] | |
Equatorial Guinea | 7,694 | 112 | 7,279 | [223] | |
Nicaragua | 6,898 | 182 | No data | [224] | |
Central African Republic | 6,521 | 91 | 5,112 | [225][226] | |
Iceland | 6,491 | 29 | 6,295 | [227] | |
Northern Cyprus[ar] | 6,403 | 32 | 5,767 | [228] | |
Yemen | 6,390 | 1,240 | 2,948 | [229] | |
Seychelles | 6,373 | 28 | 5,277 | [230][231] | |
The Gambia | 5,914 | 175 | 5,473 | [232] | |
Niger | 5,286 | 192 | 4,870 | [233][234] | |
San Marino | 5,067 | 90 | 4,935 | [235] | |
Chad | 4,835 | 170 | 4,465 | [236][237] | |
Saint Lucia | 4,585 | 74 | 4,406 | [238] | |
Luhansk PR[ai] | 4,347 | 408 | 3,812 | [239] | |
Gibraltar | 4,286 | 94 | 4,188 | [240] | |
Sierra Leone | 4,068 | 79 | 3,078 | [241] | |
Burundi | 4,052 | 6 | 773 | [242] | |
Somaliland[as] | 3,946 | 247 | 2,781 | [243][244] | |
Barbados | 3,884 | 45 | 3,817 | [245] | |
Comoros | 3,846 | 146 | 3,676 | [246] | |
Guinea-Bissau | 3,736 | 67 | 3,338 | [247][248] | |
Eritrea | 3,681 | 12 | 3,503 | [249] | |
South Ossetia[at] | 3,316 | 60+ | 2,987 | [250] | |
Jersey | 3,234 | 69 | 3,172 | [251] | |
U.S. Virgin Islands | 3,152 | 27 | 3,069 | [252][253] | |
Vietnam | 2,996 | 35 | 2,560 | [254] | |
Liechtenstein | 2,948 | 57 | 2,830 | [255] | |
Artsakh[au] | 2,673 | 31 | 337 | [256] | |
East Timor | 2,653 | 4 | 1,334 | [257][258] | |
Monaco | 2,468 | 32 | 2,390 | [259] | |
Bermuda | 2,427 | 30 | 1,980 | [260] | |
Turks and Caicos Islands | 2,396 | 17 | 2,343 | [261] | |
São Tomé and Príncipe | 2,310 | 35 | 2,251 | [262] | |
New Zealand | 2,273 | 26 | 2,222 | [263][264] | |
Sint Maarten | 2,243 | 27 | 2,193 | [265] | |
Liberia | 2,110 | 85 | 1,952 | [266] | |
Saint Vincent and The Grenadines | 1,882 | 11 | 1,731 | [267] | |
Isle of Man[av] | 1,590 | 29 | 1,445 | [269] | |
Bonaire | 1,534 | 16 | 1,504 | [270] | |
Antigua and Barbuda | 1,232 | 32 | 1,014 | [271] | |
Mauritius | 1,214 | 17 | 1,111 | [272] | |
Taiwan[aw] | 1,160 | 12 | 1,074 | [274] | |
Bhutan | 1,135 | 1 | 999 | [275] | |
USS Theodore Roosevelt[aq] | 1,102 | 1 | 751 | [276][277] | |
Charles de Gaulle[ax] | 1,081 | 0 | 0 | [278] | |
Laos | 1,026 | 0 | 60 | [282] | |
Guernsey | 822 | 14 | 808 | [283] | |
Diamond Princess[v] | 712 | 14 | 698 | [284][285] | |
Faroe Islands | 665 | 1 | 662 | [286][287] | |
Cayman Islands | 543 | 2 | 526 | [288] | |
Wallis and Futuna | 444 | 7 | 11 | [289] | |
Sahrawi Arab DR[ay] | 353 | 20 | 236 | [290] | |
Brunei | 228 | 3 | 218 | [291][292] | |
British Virgin Islands | 194 | 1 | 189 | [293] | |
Dominica | 174 | 0 | 172 | [294] | |
Northern Mariana Islands | 168 | 2 | 32 | [295][296] | |
Grenada | 160 | 1 | 158 | [297] | |
Costa Atlantica | 148 | 0 | 148 | [298][299] | |
Greg Mortimer | 128 | 1 | No data | [300][301] | |
New Caledonia | 124 | 0 | 30 | [302] | |
Fiji | 121 | 2 | 68 | [303] | |
Anguilla | 95 | 0 | 29 | [304] | |
Falkland Islands | 63 | 0 | 62 | [305] | |
Antarctica | 58 | 0 | 0 | [306] | |
Macau | 49 | 0 | 49 | [307] | |
Saint Kitts and Nevis | 45 | 0 | 44 | [308][309] | |
Greenland | 31 | 0 | 31 | [310][311] | |
Vatican City | 29 | 0 | 27 | [312][313] | |
Saint Pierre and Miquelon | 25 | 0 | 25 | [314][315] | |
Montserrat | 20 | 1 | 18 | [316] | |
Sint Eustatius | 20 | 0 | 20 | [317] | |
Solomon Islands | 20 | 0 | 18 | [318][319] | |
MS Zaandam[az] | 13 | 4 | No data | [322][323] | |
Coral Princess[ba] | 12 | 3 | No data | [325] | |
SeaDream I[bb] | 9 | 0 | No data | [326][327] | |
HNLMS Dolfijn[bc] | 8 | 0 | 8 | [328][331] | |
Saba | 7 | 0 | 6 | [332] | |
Saint Helena, Ascension and Tristan da Cunha | 7 | 0 | 7 | [333][334] | |
Marshall Islands | 4 | 0 | 4 | [335][336] | |
American Samoa | 4 | 0 | 3 | [337] | |
Samoa | 4 | 0 | 2 | [338][339] | |
Vanuatu | 4 | 1 | 3 | [340][341] | |
Federated States of Micronesia | 1 | 0 | 1 | [342] | |
Tanzania[bd] | No data | No data | No data | [344][345] | |
As of 15 March 2021 (UTC) · History of cases · History of deaths | |||||
Notes
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National responses
A total of 192[2] countries and territories have had at least one case of COVID-19 so far. Due to the pandemic in Europe, many countries in the Schengen Area have restricted free movement and set up border controls. National reactions have included containment measures such as quarantines and curfews (known as stay-at-home orders, shelter-in-place orders, or lockdowns). The WHO's recommendation on curfews and lockdowns is that they should be short-term measures to reorganise, regroup, rebalance resources, and protect health workers who are exhausted. To achieve a balance between restrictions and normal life, the long-term responses to the pandemic should consist of strict personal hygiene, effective contact tracing, and isolating when ill. (Full article...)
Videos
Animation describing the structure of a coronavirus
Video about what SARS-CoV-2 does to the human body
Video about the transmission of coronaviruses
Recent news
No recent news(More news...)
Did you know?
- ... that as an advisor to the U.S. Department of Health and Human Services, Paul Alexander tried unsuccessfully to tell Dr. Anthony Fauci what he could and could not say about the coronavirus?
- ... that Charli XCX, while under self-isolation due to the coronavirus pandemic, is collaborating with her fans to record her album How I'm Feeling Now?
- ... that Corona, named after Corona, is fighting corona?
- ... that infectious disease specialist Daniel R. Lucey has hypothesised that the SARS-CoV-2 virus responsible for the 2019–20 coronavirus outbreak may have been quietly circulating among humans since at least November 2019?
- ... that a vote of no confidence was successfully brought against the Kurti cabinet following a cabinet minister's dismissal over disagreements on how to manage the coronavirus pandemic in Kosovo?
- ... that the Association of Black Cardiologists has shared resources on the impact of coronavirus disease on black communities in response to the higher death rates seen among African Americans?(More DYK?...)
Data maps
- Total confirmed cases by reporting area3,000 + per 100,000 inhabitants1,000–3,00 per 100,000 inhabitants300–1,000 per 100,000 inhabitants100–300 per 100,000 inhabitants30–100 per 100,000 inhabitants0–30 per 100,000 inhabitantsNone or no data
- Total confirmed deaths by country100+ per million inhabitants10–100 per million inhabitants1–10 per million inhabitants0.1–1 per million inhabitants0.01–0.1 per million inhabitantsNone or no data
Economic impact
The COVID-19 pandemic has had far-reaching economic consequences beyond the spread of the disease itself and efforts to quarantine it. As the SARS-CoV-2 virus has spread around the globe, concerns have shifted from supply-side manufacturing issues to decreased business in the services sector. The pandemic caused the largest global recession in history, with more than a third of the global population at the time being placed on lockdown.
Global stock markets fell on 24 February 2020 due to a significant rise in the number of COVID-19 cases outside mainland China. By 28 February 2020, stock markets worldwide saw their largest single-week declines since the 2008 financial crisis. Global stock markets crashed in March 2020, with falls of several percent in the world's major indices. (Full article...)
Workplace
Hazard controls for COVID-19 in workplaces are the application of occupational safety and health methodologies for hazard controls to the prevention of coronavirus disease 2019 (COVID-19). The proper hazard controls in the workplace depend on the worksite and job task, based on an occupational risk assessment of sources of exposure, disease severity in the community, and risk factors of individual workers who may be vulnerable to contracting COVID-19.
OSHA considers healthcare and mortuary workers exposed to known or suspected person with COVID-19 to be at high exposure risk, which increases to very high exposure risk if workers perform aerosol-generating procedures on, or collect or handle specimens from, known or suspected person with COVID-19. Hazard controls appropriate for these workers include engineering controls such as negative pressure ventilation rooms, and personal protective equipment appropriate to the job task. (Full article...)
Misinformation
The COVID-19 pandemic has resulted in misinformation and conspiracy theories about the scale of the pandemic and the origin, prevention, diagnosis, and treatment of the disease. False information, including intentional disinformation, has been spread through social media, text messaging, and mass media. Journalists have been arrested for allegedly spreading fake news about the pandemic. False information has also been propagated by celebrities, politicians, and other prominent public figures. The spread of COVID-19 misinformation by governments has also been significant. (Full article...)
Testing
COVID-19 testing involves analyzing samples to assess the current or past presence of SARS-CoV-2. The two main branches detect either the presence of the virus or of antibodies produced in response to infection. Molecular tests for viral presence through its molecular components are used to diagnose individual cases and to allow public health authorities to trace and contain outbreaks. Antibody tests (serology immunoassays) instead show whether someone once had the disease. They are less useful for diagnosing current infections because antibodies may not develop for weeks after infection. It is used to assess disease prevalence, which aids the estimation of the infection fatality rate. (Full article...)
Vaccine research
Drug research
Images
Scanning electron microscope image of SARS-CoV-2 (centre, yellow)
Topics
Category
Get involved!
Get involved by joining WikiProject COVID-19. We discuss collaborations and all manner of issues on our talk page. As of 5 May 2021, there are 1,831 articles within the project's scope. A full list is available here.
References
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Related portals
Associated Wikimedia
Scholia has a profile for SARS-CoV-2 (Q82069695). |