| Official Name: | Serrana |
| Settlement Type: | Municipality |
| Pushpin Map: | Brazil |
| Pushpin Map Caption: | Location in Brazil |
| Coordinates: | -21.2114°N -47.5956°W |
| Subdivision Type: | Country |
| Subdivision Name: | Brazil |
| Subdivision Type1: | Region |
| Subdivision Name1: | Southeast |
| Subdivision Type2: | State |
| Subdivision Name2: | São Paulo |
| Subdivision Type3: | Mesoregion |
| Subdivision Type4: | Microregion |
| Subdivision Type5: | Metrop. region |
| Leader Title: | Mayor |
| Area Total Km2: | 126 |
| Population Total: | 45,644 |
| Population As Of: | 2020 [1] |
| Population Density Km2: | auto |
| Timezone1: | BRT |
| Utc Offset1: | -3 |
| Postal Code Type: | Postal code |
| Area Code Type: | Area code |
Serrana is a municipality in the state of São Paulo in Brazil. The population is 45,644 (2020 est.) in an area of 126 km2.[2] The elevation is 427 m.
The municipality was created by state law in 1948.[3]
While other communities were struggling to deal with the COVID-19 pandemic in Brazil, Serrana participated in a study wherein 100% of its adult population was supposed to be vaccinated with CoronaVac. Prior to the mass vaccination, 5% of Serrana's population had been infected, one of the highest rates in Brazil.[4]
Most adults received two shots by the end of April. By May, symptomatic COVID-19 cases fell 80%, hospitalizations by 86%, and mortality by 95% according to researchers doing the study. The virus was contained once 75% of people were vaccinated. According to Ricardo Palacios, a director at São Paulo's Instituto Butantan, "The most important result was understanding that we can control the pandemic even without vaccinating the entire population."[5] [6]
In telecommunications, the city was served by Companhia Telefônica Brasileira until 1973, when it began to be served by Telecomunicações de São Paulo.[7] In July 1998, this company was acquired by Telefónica, which adopted the Vivo brand in 2012.
The company is currently an operator of cell phones, fixed lines, internet (fiber optics/4G) and television (satellite and cable).[8]