Even before the virus arrived in Kenya mid-March, tourism revenues had plummeted, with cancellations coming in from crucial markets such as China, Europe, and the United States.
According to the tourism ministry, the sector has lost $750 million this year -- roughly half of the total revenue in 2019.
"We were fully booked in June but now we have zero bookings. Nothing. It's terrible," said Jimmy Lemara, 40, the manager of an eco-lodge in the private Ol Kinyei conservancy.
In a unique model set up to engage local communities in tourism, enabling them to see the value of wildlife and thus protect it, the Maasai now get revenue from renting their land to form private wildlife conservancies.
Some work as cooks, guides, and security guards in the lodges while others give tours of their traditional homes or sell homemade crafts to tourists.
People in Talek, a dusty town situated at one of the entrances to the Maasai Mara national reserve, are gloomily buckling down, hoping for better days.
"Since December, work has been extremely low, and now we're in survival mode hoping to make 150 to 200 shillings ($1.4 to $1.9) a day, to be able to buy a meal," said Ibrahim Sameri, 38, whose small mechanic workshop can generate up to $30 a day in the high season.
Nalokiti Sayialel normally sells bead necklaces and bracelets to tourists passing through.
The Maasai Mara national reserve, run by the Narok county government, extends to the north with several privately-managed conservancies renting land from the Maasai who in exchange do not graze their cattle or settle there.
This model has since 2005 allowed the doubling of the habitat for wildlife in this area.
On average, each landowner earns $220 per month, far more than the minimum wage in the area.
The salaries of lodge employees have also been cut by half.
Some Maasai families are having to turn to sell their precious livestock to earn money.
"Because we're getting little and it's not enough to sustain the family for a living, I had to sell two goats worth about 12,000 shillings to put on top of what I'm getting to keep me going," said Julius Sanare, 41, head chef at the eco-lodge in Ol Kinyei.
Residents said the Maasai are instead selling their animals on the black market for a pittance to unscrupulous buyers taking advantage of their desperation.
Mohanjeet Brar, managing director of Porini safari camps which run two conservancies and several lodges in the Mara, said the "catastrophic" situation could threaten the existence of the reserves.
"If the landowners are not getting any revenue, they can't feed themselves, they can't send their kids to schools, they would have no option but to look at other forms of land utilisation," he said.
"And once it's lost, if you look at Kenya and its very fast population growth rate and good economic growth over the last few years, it would be lost forever. It would be a real shame."