Unusual tactics to fight Covid-19 from around the world

(CNN)Daily life around the world is changing dramatically as countries and local governments employ different methods to contain the spread of the coronavirus — while allowing society to keep functioning in some form.

Many nations are testing new techniques to help ease restrictions without causing a second wave of infection, while others are trying radical strategies to stop their case numbers from climbing. These are some of the more unusual tactics:
Denmark's Prime Minister Mette Frederiksen, right, speaks to students sitting two meters away from each other during the reopening of Lykkebo School in Copenhagen.

Denmark's Prime Minister Mette Frederiksen, right, speaks to students sitting two meters away from each other during the reopening of Lykkebo School in Copenhagen.

Denmark’s Prime Minister Mette Frederiksen, right, speaks to students sitting two meters away from each other during the reopening of Lykkebo School in Copenhagen.

Classrooms 2.0

For many countries, schools will need to reopen first, enabling parents to return to work and children to resume their education on an equal footing.
    Denmark is showing how that can be done, starting with students aged under 12. Schoolyards have been split into sections with tape and classes are smaller so that desks can be placed two meters apart. Children arrive and take breaks at staggered intervals, wash their hands on arrival and every two hours and remain outside as much as possible. Surfaces including sinks, toilet seats and door handles are disinfected twice daily.
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    The Czech Republic has also begun a phased return starting with final-year students at college and universities, which is likely to be followed by primary school children, and high school students for one-on-one consultations.
    A person wearing a protective mask pushes a grocery cart through a decontamination chamber at the La Vega Central fruit and vegetable market in Santiago, Chile.

    A person wearing a protective mask pushes a grocery cart through a decontamination chamber at the La Vega Central fruit and vegetable market in Santiago, Chile.

    A person wearing a protective mask pushes a grocery cart through a decontamination chamber at the La Vega Central fruit and vegetable market in Santiago, Chile.

    Immunity cards

    Chile will begin issuing digital immunity cards this week to people who have recovered from the coronavirus, according to a Monday announcement from health officials. The so-called «Covid cards» will be issued to people who tested positive for the virus and who have shown signs of recovery, following a 14-day quarantine.
    UK Health Secretary Matt Hancock said earlier this month that the UK was «looking at» the idea of an «immunity certificate,» or passport, to allow those who have antibodies to «get as much as possible back to normal life.»
    Dr. Anthony Fauci, the director of the National Institute of Allergy and Infectious Diseases in the US, said the idea of Americans carrying certificates of immunity to prove they have tested positive for the antibodies to the coronavirus might «have some merit under certain circumstances.»
    A man with his bike surrounded by pigeons in a nearly empty Yenicami Square, at the Spice Bazaar in Istanbul, Turkey, during the weekend lockdown.

    A man with his bike surrounded by pigeons in a nearly empty Yenicami Square, at the Spice Bazaar in Istanbul, Turkey, during the weekend lockdown.

    A man with his bike surrounded by pigeons in a nearly empty Yenicami Square, at the Spice Bazaar in Istanbul, Turkey, during the weekend lockdown.

    Weekend-only lockdowns

    Turkey has enforced weekend-only lockdowns — 48-hour curfews affecting three-quarters of the population in 31 provinces.
    During the week, the stay-at-home order only applies to those under the age of 20 or over 65. All other citizens are in theory allowed to go out, although many small businesses are closed, restaurants are open for delivery or pick-up only, public places like parks are off limits, and banks have limited hours.
    The Navajo Nation in Arizona has also enacted strict weekend lockdowns during which members cannot leave their homes.
    In Libya, members of the public are only «permitted to walk» between the hours of 7am and 12pm and stores are only opened during these hours.
    Swedish authorities have advised the public to practice social distancing and asked those over 70 to stay at home, but still allow a large amount of personal freedom.

    Swedish authorities have advised the public to practice social distancing and asked those over 70 to stay at home, but still allow a large amount of personal freedom.

    Swedish authorities have advised the public to practice social distancing and asked those over 70 to stay at home, but still allow a large amount of personal freedom.

    Age-specific restrictions

    Turkey isn’t the only country that has decided to restrict movement by age. In Sweden, those aged 70 and over have been asked to stay at home. Earlier this month, researchers from Warwick University in the UK proposed that young adults aged 20-30 who do not live with parents should be released from lockdown first.
    Women wait in line to enter a grocery store, on a day that men must stay indoors in Panama City after the authorities assigned men and women three different days a week on which they can leave home for essential business.

    Women wait in line to enter a grocery store, on a day that men must stay indoors in Panama City after the authorities assigned men and women three different days a week on which they can leave home for essential business.

    Women wait in line to enter a grocery store, on a day that men must stay indoors in Panama City after the authorities assigned men and women three different days a week on which they can leave home for essential business.

    Gender-based lockdowns

    Peruvian President Martin Vizcarra announced on April 2 that it was adopting a gender-based measure because of its simplicity in visually detecting who should and shouldn’t be out on the streets. On Monday, Wednesday, and Friday, only men can be outside; on Tuesday, Thursday, and Saturday, only women are allowed.
    Panama has been doing this since April 1, arguing the measure encourages people to stay at home since their loved-ones are not allowed to be outside. Some cities in Colombia, including its capital Bogota, are also only allowing men and women to leave the house on alternate days.
    Police officers wearing colorful face masks in Cali, Colombia on March 20 as preventative measures began.

    Police officers wearing colorful face masks in Cali, Colombia on March 20 as preventative measures began.

    Police officers wearing colorful face masks in Cali, Colombia on March 20 as preventative measures began.

    Luck of the draw

    Some parts of Colombia have also implemented additional measures. Cities including Cali and Medellin only permit citizens to leave their homes at certain times depending on their ID card numbers. This does not affect essential workers.
    A police officer pilots a DJI Mavic 2 Enterprise drone with a thermal sensor for checking people's temperature on April 9 in Treviolo, near Bergamo, Italy.

    A police officer pilots a DJI Mavic 2 Enterprise drone with a thermal sensor for checking people's temperature on April 9 in Treviolo, near Bergamo, Italy.

    A police officer pilots a DJI Mavic 2 Enterprise drone with a thermal sensor for checking people’s temperature on April 9 in Treviolo, near Bergamo, Italy.

    Under their eye

    Several countries have used drones to monitor locked-down citizens. Italy’s National Civil Aviation Authority (ENAC) authorized the use of drones to monitor the movements of citizens back in March. Not long after the UK announced lockdown measures in late March, one police force posted a video of drone footage showing people walking through Derbyshire’s Peak District National Park, amid growing concern around draconian tactics from the authorities.
      Commercial drone company Draganfly this month partnered with Australia’s Department of Defense and the University of South Australia to deploy «pandemic drones» to «monitor temperature, heart and respiratory rates, as well as detect people sneezing and coughing in crowds.»
      China and Kuwait have used «talking drones» to order people to return home.

    CNNE’s Cristopher Ulloa and CNN’s Stefano Pozzebon, Ana Cucalon, Jackie Castillo contributed reporting.