The delay in the test would "really kill the elephants," Mr said. Hiley.
Dr. Mmadi Reuben, chief livestock officer at the Botswana National Parks and Wildlife Department, said the government has taken the death seriously and responded "promptly, sufficiently and responsibly – as soon as we receive this information. ”
He said some tests have eliminated common causes like anthrax, caused by bacteria that naturally occur in the soil. He and his colleagues are currently working on laboratories in Zimbabwe, South Africa and Canada to conduct further investigations. "It's not going to be a one-time thing to say, & # 39; We sent stock, it's now completed, & # 39;" Dr. Reuben said. "It is an ongoing discussion with a variety of laboratories."
There is still no evidence that death is too bad for humans, he added.
Cyanide, which is sometimes used by poachers to poison elephants, appears to be unrealistic, since bodies seem to have accumulated in a poisonous environment. They also tend to kill other animals, but no other species seems to have fallen into this case. However, it is possible that other toxins could be used against elephants, and Mr. Hiley says some of them will get rid of them soon.
Covid-19, he added, is impossible, because the disease has not yet spread to people living in remote Okavango. There is also no evidence yet that the elephants could be infected
Dr. Yeless suspects that a natural disease is likely to be the culprit. One of the first candidates is encephalomyocarditis, a viral infection that can spread to rats, which can cause neurological symptoms. It killed about 60 elephants at the Kruger Peace Park in South Africa in the mid-1990s. Botswana has also recently emerged from a drought, which has caused some elephants to become anxious and vulnerable to the disease, said Dr. Youless.
At that point, he continued, death is not a crisis problem, as the numbers recorded so far represent about 15,000 to 20,000 elephants in the Okavango Panhandle. "This is unfortunate, but it is now less than the number of people," he said.
Previous examples also show that when conditions are good, elephants can return quickly. For example, in 1970 and 1971, a drought in Kenya's Tsavo East National Park killed about 5,900 of the park's 35,000 elephants. By 1973, the population had returned to 35,000.