Coronavirus disease 2019 (COVID-19) is a contagious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The first case was identified in Wuhan, China, in December 2019. The disease has since spread worldwide, leading to an ongoing pandemic.Symptoms of COVID-19 are variable, but often include fever, cough, fatigue, breathing difficulties, and loss of smell and taste. Symptoms begin one to fourteen days after exposure to the virus. Of those people who develop noticeable symptoms, most (81%) develop mild to moderate symptoms (up to mild pneumonia), while 14% develop severe symptoms (dyspnea, hypoxia, or more than 50% lung involvement on imaging), and 5% suffer critical symptoms (respiratory failure, shock, or multiorgan dysfunction). At least a third of the people who are infected with the virus remain asymptomatic and do not develop noticeable symptoms at any point in time, but they still can spread the disease. Some people continue to experience a range of effects—known as long COVID—for months after recovery, and damage to organs has been observed. Multi-year studies are underway to further investigate the long-term effects of the disease.The virus that causes COVID-19 spreads mainly when an infected person is in close contact with another person. Small droplets and aerosols containing the virus can spread from an infected person's nose and mouth as they breathe, cough, sneeze, sing, or speak. Other people are infected if the virus gets into their mouth, nose or eyes. The virus may also spread via contaminated surfaces, although this is not thought to be the main route of transmission. The exact route of transmission is rarely proven conclusively, but infection mainly happens when people are near each other for long enough. People who are infected can transmit the virus to another person up to two days before they themselves show symptoms, as can people who do not experience symptoms. People remain infectious for up to ten days after the onset of symptoms in moderate cases and up to 20 days in severe cases.
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 loop-mediated isothermal amplification 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 minimise the risk of transmissions. Several vaccines have been developed and several countries have initiated mass vaccination campaigns.
Although work is underway to develop drugs that inhibit the virus, the primary treatment is currently symptomatic. Management involves the treatment of symptoms, supportive care, isolation, and experimental measures.
Kwa taifa letu Karantini lingewezekana?
Kwamba wakulima wa kitanzania, wauza samaki na nyanya wa kitanzania, mama ntilie wa kitanzania uwaweke karantini sasa hivi tungekuwa na hali gani?
Mkopo wa tril 1.3 ndio ilikuwa sababu ya kuharibu maisha ya watanzania wakati karantine isingewezekana...
Inatengenezwa na Valneva, kwa kutumia teknolojia ya jadi zaidi - sawa na jinsi chanjo za polio na homa hutengenezwa.
Uingereza ilipaswa kupokea dozi milioni 100 za dawa hiyo, lakini serikali ilighairi mpango huo mwezi Septemba kutokana na kutokuwa na uhakika nazo
Dk June Raine, mtendaji mkuu...
Mawaziri wawili wako ukumbi wa mikutano wa hazina, Dar es Salaam kubwa likiwa hali ya uchumi na kupanda kwa bei za bidhaa. Yupo waziri wa uwekezaji, Dkt. Asha Kijaji na waziri wa fedha, Mwigulu Nchemba.
Zifuatazo ni nukuu muhimu
Dkt. Kijaji: Niliagiza mamlaka zinazosimamia mwenendo wa soko la...
WW3=Great Reset=New World Order
How this all might play out if it goes nuclear.
Everything is a means to an end.
The transition from COVID hysteria to nuclear fear is simply the next progression of the agenda to consolidate government, people, culture, economics, into a singular global...
Imekuwaje Kiwanda cha chanjo ya Covid kimepelekwa Kenya ilihali mama akiwa Ulaya alitangaza kuwa kitajengwa Tanzania. Je wajenzi walimdanganya au hakusikia vizuri?
Je, aliambiwa kitajengwa karibu na Tanzania, yeye akachukulia kuwa kitajengwa Tanzania?
American biotechnology firm Moderna will set up a manufacturing facility in Kenya, its first in Africa, to produce messenger RNA (mRNA) vaccines, including Covid-19 shots.
Moderna said it expects to invest about $500 million (Sh56.5 billion) in the Kenyan facility and supply as many as 500...
Ata Kama Spika atawachukulia kuwa NI wanachama halali wa chadema. Chadema imeshatoa ufafanuzi nyaraka zilizotumika kuwaingizwa bungeni zimefojiwa.
Na wanaoandaa nyaraka hizo wameshatoa taarifa za sahihi zao na majina yao kufojiwa. Sijui wanataka Nani aje asibitishe Hilo. Wakati wewe unasema...
Kipindi hiki cha December kuelekea January, ni kipindi cha msimu wa maembe, matunda ambayo msimu wake huambatana na mlipuko wa ugonjwa wa kipindupindu.
Hata hivyo, kwa miaka karibu mitatu sasa , sijasikia habari ya mlipuko wa kipindupindu katika maeneo yoyote ya nchi yetu kama ilivyokuwa...
Recently the Prime Minister of the United Kingdom, Boris Johnson announced that the country is dropping all COVID restrictions, including the mandatory COVID passes.
The prime minister said masks would no longer be required anywhere. Not in shops, not on public transport, not in schools, not...
Kwa heshima na taadhima ujumbe huu mhe: Rais ukufikikie popote uliopo.Mhe Raisi umekuwa mstari mbele kuhakikisha Nchi yetu inakuwa salama na tunapata maendeleo katika nyanja mbalimbali. Na umefanya jitihada za dhati kuhakikisha Nchi yetu inasonga mbele.Lakini watendaji wako wanakuangusha...
MADRID (AP) — When the coronavirus pandemic was first declared, Spaniards were ordered to stay home for more than three months. For weeks, they were not allowed outside even for exercise. Children were banned from playgrounds, and the economy virtually stopped.
But officials credited the...
Mfalme wa Kisiwa cha Ijwi huko Kivu Kusini katika Jamhuri ya Kidemokrasia ya Kongo anasema Wanyarwanda zaidi ya 100 waliokuwa wamekimbia nchi yao kukwepa chanjo ya Covid-19 walirejeshwa nchini Rwanda siku ya Alhamisi.
Katika mahojiano na BBC, Mfalme Roger Ntambuka alisema wameweza kuwashawishi...
15 December 2021
Dr Mpoki Ulisubisya (A former Cardiac Anaesthesiologist) - What caused COVID 19's vaccine to be developed so fast?"
Tanzanian's High Commissioner to Canada - Answering questions about COVID -19 "What caused COVID 19's vaccine to be developed so fast?" what cause Covid -19...
Ni miaka miwili sasa tangu virusi vya Covid vigundulike duniani na baadaye kuwa janga, lakini ni sasa ambapo uwezekano wa athari za ugonjwa huu kwa uwezo wa kuzaa wa wanaume zimefichuliwa.
Ingawa kuna baadhi ambao hawajapata chanjo kutokana na hofu kwamba chanjo dhidi ya Covid-19 itapunguza au...
Wala sihitaji kuandika gazeti hapa, raha ya mchuzi wa mbwa ni ukiwa wa moto.
Ccm inasafisha takataka bandani mwake na tarehe 2 February tutapata spika mpya, hivyo nashsuri chombo cha juu cha maamuzi cha chadema kimalize mchakato wa kuwafuta uanachama hawa covid 19 na tarehe 2 February Chama...
We have entered our third calendar year with the pandemic, and one must wonder how society will move forward and under what guise and endgame. First, there are many questions on the more immediate future for the everyday person, and secondly, what is the impact of the actions taken by...
Kirusi kipya cha Omicron kilisababisha ongezeko la maambukiziImage caption: Kirusi kipya cha Omicron kilisababisha ongezeko la maambukizi
Kituo cha uchibiti na kuzuwia magonjwa cha Afrika (Africa CDC), kimesema sheria kali ya kukaa nyumbani au ‘lockdown’ sio tena njia bora ya kukabiliana na...
Ili kupata ithibaki inabidi sasa muhamie upande wa kumtetea Rais. Mkibaki kushangaa shangaa mtakuja kupigwa chini Ndugai akiondolewa. Hili nawashauri. Anzeni nanyi kumrushia mawe na madongo akifa huku hamjarusha hata jiwe moja mtaonekana mlikuwa nyuma yake.
Lazima muwe wajanja kama nyoka. Kwa...
Aina mpya ya virusi vya corona vya Omicron vinaenea kwa kasi duniani kote. Je, ni dalili gani watu wakipata wanapaswa kuchukua hatua?
Shirika la Afya Duniani (WHO) linasema watu bado wanapaswa kuangalia dalili za kawaida za Covid:
Aina mpya ya kikohozi kinachoendelea
homa/joto la juu kupoteza...
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