The good news is that the Peru government has reopened the Machu Picchu website. Although the actual ruins are not officially opened yet, it's a matter of days or weeks until the first visitors step foot inside the national park. The bad news is that tickets are not available to purchase yet. And the international border is still closed through August 31. The official Machu Picchu government website has been revised and visitors will see a tab for QUERYS across the top of the page, and a drop down box for "experiences." These include the hikes to Huayna Picchu, Machu Picchu mountain and Inca Bridge and other places for a total of 7 spots. I can't offer any explanations for how to buy tickets as the button has not been activated yet. But I will let you know.

I copied and translated below the new health protocols for entering the ruins and other archaeological sites in Peru.

The Ministry of Culture draws up guidelines and protocols for health for receive visitors in the country's museums and archaeological sites, according to the measures established by the central government in the context of the emergency national.
In this context, the disinfection and maintenance process must be carried out of the headquarters, which gradually join the reactivation, to care for visitors and workers protection and enjoyment of our heritage. As a preventive measure, museums and archaeological sites will reduce their original capacity to less than 50%, which will allow space to keep the social distance among visitors.
In addition, the establishments will provide information to visitors about the safety and health measures that all must comply to avoid and prevent the spread of COVID-19. Among the necessary and mandatory measures are:

  • wearing masks
  • disinfecting hands and shoes
  • keeping the established social distance
  • respect the new limited capacity

How to Prepare to Visit Machu Picchu
To make a visit, it will be necessary to make an online reservation, by appointment at the official government website or though a tour operator. Reservations will be subject to the capacity of each museum or archaeological site. The service to visitors to museums and archaeological sites nationwide will resume progressively, and in stages, considering the provisions of the government and taking into account the information of the epidemiological alerts of the Ministry of Health (MINSA).

Supreme Decree No. 116-2020-PCM extends the State of Emergency through August 31, 2020,
To remain in quarantine are children and adolescents under fourteen (14) years, as well as people in risk groups and older adults sixty-five (65) years. In addition, it establishes compulsory social isolation in 7 regions; Ica, Junín, Huánuco, San Martín and Ancash, among others. (Cusco is not one of them)

Links to additional information about travel to Machu Picchu after covid-19