Re: “High-Altitude Environment and COVID-19: SARS-CoV-2 Seropositivity in the Highest City in the World,” by Champigneulle et al.

Accinelli RA and Leon-Abarca JA . (2020). At High Altitude COVID-19 Is Less Frequent: The Experience of Peru. Arch Bronconeumol, 56:760–761.

Accinelli RA and Leon-Abarca JA . (2021). Lower frequency and letality in women and in altitude due to COVID-19: Two sides of the same coin. Arch Bronconeumol, 57:70–72.

Arias-Reyes C , Carvajal-Rodriguez F , Poma-Machicao L , Aliaga-Raduán F , Marques DA , Zubieta-DeUrioste N , Accinelli RA , Schneider-Gasser EM , Zubieta-Calleja G , Dutschmann M , and Jorge S . (2021). Decreased incidence, virus transmission capacity, and severity of COVID-19 at altitude on the American continent. PLoS One, 16:e0237294.

Cardenas L , Valverde-Bruffau V , and Gonzales GF . (2021). Altitude does not protect against SARS-CoV-2 infections and mortality due to COVID-19. Physiol Rep, 9:e14922.

Castagnetto JM , Segovia-Juarez J , and Gonzales GF . (2020). Letter to the Editor: COVID-19 Infections Do Not Change with Increasing Altitudes from 1,000 to 4,700 m. High Alt Med Biol, 21:428–430.

Champigneulle B , Hancco I , Renan R , Doutreleau S , Stauffer E , Pichon A , Brugniaux JV , Péré H , Bouzat P , Veyer D , and Verges S . (2021). High-altitude environment and COVID-19: SARS-CoV-2 seropositivity in the highest city in the world. High Alt Med Biol (Epub ahead of print); DOI: 10.1089/ham.2021.0020.

Gobierno del Perú. (2021a). Technical criteria to update the number of deaths from COVID-19 in Peru. 2021. Available at https://cdn.www.gob.pe/uploads/document/file/1920747/Criterios%20t%C3%A9cnicos.pdf (accessed September 28, 2021).

Gobierno del Perú. (2021b). REUNIS. Single National Repository of Health Information-Ministry of Health. 2021. Available at https://www.minsa.gob.pe/reunis/data/vacunas-covid19.asp (accessed September 28, 2021).

Intimayta-Escalante C , Rojas-Bolivar D , and Hancco I . (2020). Letter to the Editor: Influence of Altitude on the Prevalence and Case Fatality Rate of COVID-19 in Peru. High Alt Med Biol, 21:426–427.

Pun M , Turner R , Strapazzon G , Brugger H , and Swenson ER . (2020). Lower incidence of COVID-19 at high altitude: Facts and confounders. High Alt Med Biol, 21:217–222.

Quevedo-Ramirez A , Al-Kassab-Córdova A , Mendez-Guerra C , Cornejo-Venegas G , and Alva-Chavez KP . (2020). Altitude and excess mortality during COVID-19 pandemic in Peru. Respir Physiol Neurobiol, 281:103512.

Sánchez-Moreno F . (2013). Inequity in health affects the development in Peru [in Spanish]. Rev Peru Med Exp Salud Publica, 30:676–682.

Seclén SN , Nunez-Robles E , Yovera-Aldana M , and Arias-Chumpitaz A . (2020). Incidence of COVID-19 infection and prevalence of diabetes, obesity and hypertension according to altitude in Peruvian population. Diabetes Res Clin Pract, 169:108463.

Segovia-Juarez J , Castagnetto JM , and Gonzales GF . (2020). High altitude reduces infection rate of COVID-19 but not case-fatality rate. Respir Physiol Neurobiol, 281:103494.

Thomson T , Casas F , Guerrero H , Figueroa-Mujíca R , Villafuerte F , and Machicado C . (2021). Potential protective effect from COVID-19 conferred by altitude: A longitudinal analysis in peru during full lockdown. High Alt Med Biol, 22:209–224.