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Ebola virus can remain latent in survivors for a long time and can still infect others after 5 years
Ebola virus can remain latent in survivors for a long time and can still infect others after 5 years. In February 2021, a new round of Ebola outbreaks occurred in the Congo (Kinshasa) and Guinea in Africa. As of now, at least 18 people have been infected in Guinea and 9 people have died.
From 2013 to 2016, Africa broke out the largest Ebola epidemic in history, the Ebola epidemic in West Africa, which caused more than 11,000 deaths.
Ebola virus (Ebola virus) is a rare and severe infectious disease virus. It was first discovered in southern Sudan and the Ebola river area of the Congo (Kinshasa) in 1976. Ebola virus can cause humans and other diseases. Long animals produce Ebola hemorrhagic fever. The Ebola hemorrhagic fever (EBHF) caused by it is the deadliest viral hemorrhagic fever in the world today. The mortality rate of infected persons is between 50% and 90%.
The Ebola virus always appears suddenly and often disappears suddenly. In the more than 40 years since it was first discovered in 1976, there have been 11 Ebola outbreaks in Africa. However, so far, humans have not been able to confirm where the Ebola virus came from, and it is not clear who its natural host is.
Recently, three independent research teams analyzed the Ebola virus genome and found that the Ebola virus strain that caused the latest round of the epidemic is almost the same as the strain that caused the Ebola epidemic in West Africa five or six years ago. .
This shows that the Ebola virus has been dormant in some survivors.
In fact, scientists have discovered that Ebola may exist in the human body for a long time. The resurgence of the Ebola epidemic in Guinea in 2016 was caused by an Ebola survivor who was carried in his semen 500 days after infection. He was infected with the Ebola virus, and then infected his partner.
However, the latest research shows that the epidemic is likely to originate from the survivors of the West African Ebola epidemic that ended more than 5 years ago, which means that the Ebola virus has been latent for more than 5 years after the end of the epidemic. Then it led to a new round of epidemic now.
The Ebola outbreak in Guinea was discovered after the death of a 51-year-old nurse who was initially diagnosed with typhoid fever and malaria in late January 2021. Several people who attended her funeral fell ill and four of them died. In early February, researchers found Ebola virus in her husband’s blood.
For a long time, scientists have believed that the outbreak of Ebola is caused by the virus jumping from the animal reservoir to humans.
But the latest research tells us that this may not be the case. At least some of the Ebola outbreaks are due to the re-emergence of the Ebola virus lurking in the survivors. This may be the mysterious reason why the total number of Ebola viruses has come and gone-it has never left at all.
The Ebola virus is one of the most terrifying viruses in the world. The death rate of infected persons is between 50% and 90%. Some patients died 48 hours after being infected with Ebola virus, and they all “deadly died.” It’s ugly.” The virus spreads rapidly in the body and multiplies in large numbers, attacking multiple organs, causing them to deform, necrosis, and slowly be decomposed. The patient first suffered from internal bleeding, followed by bleeding from the seven orifices, and constantly vomited the necrotic tissues of the internal organs from the mouth, and finally died due to extensive internal bleeding, brain damage and other reasons.
It is precisely because of the rapid morbidity and death after infection with the Ebola virus that the large-scale spread of the virus is largely restricted, but now we know that the Ebola virus is likely to be latent in the human body for a long time, which will be Ebola. The prevention and treatment of pull brings new challenges.
(source:internet, reference only)