A dead bird is seen on the Cerro Azul beach, amidst rising cases of bird flu infections, south of the city of Lima, in Peru, February 22, 2023. REUTERS/Sebastian Castaneda 

A dead bird is seen on the Cerro Azul beach, amidst rising cases of bird flu infections, south of the city of Lima, Peru on February 22, 2023. REUTERS/Sebastian Castaneda 

A dead Otter is seen on Chepeconde beach, amidst rising cases of bird flu infections, in Lima, Peru on February 22, 2023. REUTERS/Sebastian Castaneda 

A dead duck is seen on Lobos beach, amidst rising cases of bird flu infections, in Lima, Peru on February 22, 2023. REUTERS/Sebastian Castaneda 

A dead duck is seen on Lobos beach, amidst rising cases of bird flu infections, in Lima, Peru on February 22, 2023. REUTERS/Sebastian Castaneda 

A flock of birds flying over the Chepeconde beach, where otters and sea lions infected with bird flu have been found, in Lima, Peru February 22, 2023. REUTERS/Sebastian Castaneda 

SERFOR National Forest Service personnel observe a duck on Lobos beach, amidst rising cases of bird flu infections, in Lima, Peru February 22, 2023. REUTERS/Sebastian Castaneda 

A duck is seen on Lobos beach, amidst rising cases of bird flu infections, in Lima, Peru February 22, 2023. REUTERS/Sebastian Castaneda 

A duck is seen on Lobos beach, amidst rising cases of bird flu infections, in Lima, Peru February 22, 2023. REUTERS/Sebastian Castaneda 

A SERFOR National Forest Service personnel puts on personal protective equipment (PPE) at Chepeconde beach, where otters and sea lions infected with bird flu have been found in Lima, Peru February 22, 2023. REUTERS/Sebastian Castaneda 

A duck is seen on Lobos beach, amidst rising cases of bird flu infections, in Lima, Peru February 22, 2023. REUTERS/Sebastian Castaneda 

SERFOR National Forest Service personnel check a dead otter amid bird flu infection on Chepeconde beach, south of the city of Lima, in Peru, February 22, 2023. REUTERS/Sebastian Castaneda 

A duck is seen amid bird flu infection on Lobos beach, south of the city of Lima, in Peru, February 22, 2023. REUTERS/Sebastian Castaneda 

A duck is seen amid bird flu infection on Lobos beach, south of the city of Lima, in Peru, February 22, 2023. REUTERS/Sebastian Castaneda 

SERFOR National Forest Service personnel check an otter that died of bird flu on Chepeconde beach, south of the city of Lima, in Peru on February 22, 2023. REUTERS/Sebastian Castaneda 

A duck dying from bird flu infection on Lobos beach, south of the city of Lima, in Peru February 22, 2023. REUTERS/Sebastian Castaneda 

Reasearcher Albert Snyman takes a brain swab test from a African penguin carcass to test for avian influenza at South African Foundation for the Conservation of Coastal Birds (SANCCOB) rehabilitation centre after penguins at Cape Town's famous Boulders penguin colony, a popular tourist attraction and an important breeding site are suffering an outbreak of avian flu, in Cape Town, South Africa, September 20, 2022. REUTERS/Esa Alexander 

A car, advertising for Quidel Corp., which makes test kits for both the flu and the coronavirus disease (COVID-19), waits at a traffic light with a large model of the influenza virus on its roof, in Medford, Massachusetts, U.S., March 31, 2021. REUTERS/Brian Snyder 

Health workers buy food from a street vendor during a drive-thru vaccination campaign against influenza, as the coronavirus disease (COVID-19) outbreak continues, in Ciudad Juarez, Mexico December 10, 2020. REUTERS/Jose Luis Gonzalez 

A health worker registers the data of some people before they are vaccinated against influenza, during a drive-thru vaccination campaign, as the coronavirus disease (COVID-19) outbreak continues, in Ciudad Juarez, Mexico December 10, 2020. REUTERS/Jose Luis Gonzalez 

A health worker buys food from a street vendor, during a drive-thru vaccination campaign against influenza, as the coronavirus disease (COVID-19) outbreak continues, in Ciudad Juarez, Mexico December 10, 2020. REUTERS/Jose Luis Gonzalez 

A health worker registers the data of a driver before being vaccinated against influenza, during a drive-thru vaccination campaign, as the coronavirus disease (COVID-19) outbreak continues, in Ciudad Juarez, Mexico December 10, 2020. REUTERS/Jose Luis Gonzalez 

A health worker vaccinates a woman against influenza in her vehicle, during a drive-thru vaccination campaign, as the coronavirus disease (COVID-19) outbreak continues, in Ciudad Juarez, Mexico December 10, 2020. REUTERS/Jose Luis Gonzalez 

People wait in line to get vaccinated for diphtheria, influenza, tetanus and pneumococcus during a vaccination drive after several new cases of diphtheria were identified, as the coronavirus disease (COVID-19) outbreak continues, in Lima, Peru November 7, 2020. REUTERS/Sebastian Castaneda 

People wait in line to get vaccinated for diphtheria, influenza, tetanus and pneumococcus during a vaccination drive after several new cases of diphtheria were identified, as the coronavirus disease (COVID-19) outbreak continues, in Lima, Peru November 7, 2020. REUTERS/Sebastian Castaneda 

People wait in line to get vaccinated for diphtheria, influenza, tetanus and pneumococcus during a vaccination drive after several new cases of diphtheria were identified, as the coronavirus disease (COVID-19) outbreak continues, in Lima, Peru November 7, 2020. REUTERS/Sebastian Castaneda 

People wait in line to get vaccinated for diphtheria, influenza, tetanus and pneumococcus during a vaccination drive after several new cases of diphtheria were identified, as the coronavirus disease (COVID-19) outbreak continues, in Lima, Peru November 7, 2020. REUTERS/Sebastian Castaneda 

A woman gets vaccinated as others wait in line during a vaccination drive for diphtheria, influenza, tetanus and pneumococcus after several new cases of diphtheria were identified, as the coronavirus disease (COVID-19) outbreak continues, in Lima, Peru November 7, 2020. REUTERS/Sebastian Castaneda 

People wait in line to get vaccinated for diphtheria, influenza, tetanus and pneumococcus during a vaccination drive after several new cases of diphtheria were identified, as the coronavirus disease (COVID-19) outbreak continues, in Lima, Peru November 7, 2020. REUTERS/Sebastian Castaneda 

People wait in line to get vaccinated for diphtheria, influenza, tetanus and pneumococcus during a vaccination drive after several new cases of diphtheria were identified, as the coronavirus disease (COVID-19) outbreak continues, in Lima, Peru November 7, 2020. REUTERS/Sebastian Castaneda 

A man gets vaccinated as others wait in line during a vaccination drive for diphtheria, influenza, tetanus and pneumococcus after several new cases of diphtheria were identified, as the coronavirus disease (COVID-19) outbreak continues, in Lima, Peru November 7, 2020. REUTERS/Sebastian Castaneda 

A soldier assists a woman during a vaccination drive for diphtheria, influenza, tetanus and pneumococcus after several new cases of diphtheria were identified, as the coronavirus disease (COVID-19) outbreak continues, in Lima, Peru November 7, 2020. REUTERS/Sebastian Castaneda 

People get vaccinated as others wait in line during a vaccination drive for diphtheria, influenza, tetanus and pneumococcus after several new cases of diphtheria were identified, as the coronavirus disease (COVID-19) outbreak continues, in Lima, Peru November 7, 2020. REUTERS/Sebastian Castaneda 

People wait in line to get vaccinated for diphtheria, influenza, tetanus and pneumococcus during a vaccination drive after several new cases of diphtheria were identified, as the coronavirus disease (COVID-19) outbreak continues, in Lima, Peru November 7, 2020. REUTERS/Sebastian Castaneda 

A little girl reacts as she is being vaccinated during a vaccination drive for diphtheria, influenza, tetanus and pneumococcus, after several new cases of diphtheria were identified, as the coronavirus disease (COVID-19) outbreak continues, in Lima, Peru November 7, 2020. REUTERS/Sebastian Castaneda 

A little girl reacts after receiving an oral vaccine during a vaccination drive for diphtheria, influenza, tetanus and pneumococcus, after several new cases of diphtheria were identified, as the coronavirus disease (COVID-19) outbreak continues, in Lima, Peru November 7, 2020. REUTERS/Sebastian Castaneda TPX IMAGES OF THE DAY 

People wait in line to get vaccinated for diphtheria, influenza, tetanus and pneumococcus during a vaccination drive after several new cases of diphtheria were identified, as the coronavirus disease (COVID-19) outbreak continues, in Lima, Peru November 7, 2020. The sign on the tent reads "Vaccination grown-ups (12 to 59)." REUTERS/Sebastian Castaneda 

People wait in line to get vaccinated for diphtheria, influenza, tetanus and pneumococcus during a vaccination drive after several new cases of diphtheria were identified, as the coronavirus disease (COVID-19) outbreak continues, in Lima, Peru November 7, 2020. REUTERS/Sebastian Castaneda 

People wait in line to get vaccinated for diphtheria, influenza, tetanus and pneumococcus during a vaccination drive after several new cases of diphtheria were identified, as the coronavirus disease (COVID-19) outbreak continues, in Lima, Peru November 7, 2020. REUTERS/Sebastian Castaneda 

A woman gets an influenza vaccine sitting inside his vehicle at a drive-thru vaccine center of a hospital in Goyang, South Korea, October 26, 2020. REUTERS/Kim Hong-Ji 

A man gets an influenza vaccine sitting inside his vehicle at a drive-thru vaccine center of a hospital in Goyang, South Korea, October 26, 2020. REUTERS/Kim Hong-Ji 

A nurse prepares to give an influenza vaccine to a woman sitting inside a vehicle at a drive-thru vaccine center of a hospital in Goyang, South Korea, October 26, 2020. REUTERS/Kim Hong-Ji 

A woman gets an influenza vaccine sitting inside his vehicle at a drive-thru vaccine center of a hospital in Goyang, South Korea, October 26, 2020. REUTERS/Kim Hong-Ji 

A man gets an influenza vaccine sitting inside his vehicle at a drive-thru vaccine center of a hospital in Goyang, South Korea, October 26, 2020. REUTERS/Kim Hong-Ji 

A man gets an influenza vaccine sitting inside his vehicle at a drive-thru vaccine center of a hospital in Goyang, South Korea, October 26, 2020. REUTERS/Kim Hong-Ji 

A woman walks past a poster encouraging people to get an influenza vaccine in Seoul, South Korea, October 23, 2020. REUTERS/Kim Hong-Ji 

A man gets an influenza vaccine at a branch of the Korea Association of Health Promotion in Seoul, South Korea, October 23, 2020. REUTERS/Kim Hong-Ji 

A man gets an influenza vaccine at a branch of the Korea Association of Health Promotion in Seoul, South Korea, October 23, 2020. REUTERS/Kim Hong-Ji 

Men check a mandatory document to get an influenza vaccine at a branch of the Korea Association of Health Promotion in Seoul, South Korea, October 23, 2020. REUTERS/Kim Hong-Ji 

A man gets an influenza vaccine at a branch of the Korea Association of Health Promotion in Seoul, South Korea, October 23, 2020. REUTERS/Kim Hong-Ji 

A man gets an influenza vaccine at a branch of the Korea Association of Health Promotion in Seoul, South Korea, October 23, 2020. REUTERS/Kim Hong-Ji 

A woman gets an influenza vaccine at a hospital in Seoul, South Korea, October 23, 2020. REUTERS/Kim Hong-Ji 

A man gets an influenza vaccine at a branch of the Korea Association of Health Promotion in Seoul, South Korea, October 23, 2020. REUTERS/Kim Hong-Ji 

People fill in a mandatory document to get an influenza vaccine at a branch of the Korea Association of Health Promotion in Seoul, South Korea, October 23, 2020. REUTERS/Kim Hong-Ji 

A man gets an influenza vaccine at a hospital in Seoul, South Korea, October 21, 2020. REUTERS/Kim Hong-Ji 

A woman gets an influenza vaccine at a hospital in Seoul, South Korea, October 21, 2020. REUTERS/Kim Hong-Ji 

A woman gets an influenza vaccine at a hospital in Seoul, South Korea, October 21, 2020. REUTERS/Kim Hong-Ji 

Doctor Harald Bias looks at the vaccination card of German Health Minister Jens Spahn who receives an influenza injection from at Charite hospital, during the spread of the coronavirus disease (COVID-19), in Berlin, Germany, October 14, 2020. REUTERS/Hannibal Hanschke/Pool 

German Health Minister Jens Spahn shows his vaccination card as he receives an influenza injection at Charite hospital, during the spread of the coronavirus disease (COVID-19), in Berlin, Germany, October 14, 2020. REUTERS/Hannibal Hanschke/Pool 

German Health Minister Jens Spahn receives an influenza injection from doctor Harald Bias at Charite hospital, during the spread of the coronavirus disease (COVID-19), in Berlin, Germany, October 14, 2020. REUTERS/Hannibal Hanschke/Pool