The country is likely to fall short of its year-end target of fully vaccinating its entire adult population – despite sufficient stock – because of the three-month minimum mandated gap between two doses of AstraZeneca’s Covishield vaccine.

Hazara girls walk out from a school building from behind for the Shi'ite community, that was a target of a bomb attack last May in Kabul, Afghanistan October 20, 2021. Picture taken October 20, 2021. REUTERS/Jorge Silva

A Costa Rican healthcare worker prepares to administer a vaccine dose to a Nicaraguan migrant as part of a vaccination campaign against the coronavirus disease (COVID-19) targeting migrants regardless of their legal status, in Guadalupe, Costa Rica October 13, 2021. REUTERS/Mayela Lopez

A Costa Rican healthcare worker administers a vaccine dose to a Nicaraguan migrant as part of a vaccination campaign against the coronavirus disease (COVID-19) targeting migrants regardless of their legal status, in Guadalupe, Costa Rica October 13, 2021. REUTERS/Mayela Lopez

A Costa Rican health care worker administers a vaccine dose to a Nicaraguan migrant as part of a vaccination campaign against the coronavirus disease (COVID-19) targeting migrants regardless of their legal status, in San Jose, Costa Rica October 13, 2021. REUTERS/Mayela Lopez

A Costa Rican health care worker prepares a vaccine dose to administer to a Haitian migrant as part of a vaccination campaign against the coronavirus disease (COVID-19) targeting migrants regardless of their legal status, in San Jose, Costa Rica October 12, 2021. REUTERS/Mayela Lopez

A Costa Rican health care worker prepares to administer a vaccine dose to a Haitian migrant as part of a vaccination campaign against the coronavirus disease (COVID-19) targeting migrants regardless of their legal status, in San Jose, Costa Rica October 12, 2021. REUTERS/Mayela Lopez

A sign reading "First dose" is seen at a site being used in a vaccination campaign against the coronavirus disease (COVID-19) targeting migrants regardless of their legal status, in San Jose, Costa Rica October 12, 2021. REUTERS/Mayela Lopez

A Costa Rican health care worker administers a vaccine dose to a Nicaraguan migrant as part of a vaccination campaign against the coronavirus disease (COVID-19) targeting migrants regardless of their legal status, in San Jose, Costa Rica October 12, 2021. REUTERS/Mayela Lopez

Haitian migrants leave a vaccination site after being given shots as part of a vaccination campaign against the coronavirus disease (COVID-19) targeting migrants regardless of their legal status, in San Jose, Costa Rica October 12, 2021. REUTERS/Mayela Lopez

A Costa Rican health care worker administers a vaccine dose to a Nicaraguan migrant as part of a vaccination campaign against the coronavirus disease (COVID-19) targeting migrants regardless of their legal status, in San Jose, Costa Rica October 12, 2021. REUTERS/Mayela Lopez

A Costa Rican health care worker prepares a dose of the AstraZeneca vaccine as part of a vaccination campaign against the coronavirus disease (COVID-19) targeting migrants regardless of their legal status, in San Jose, Costa Rica October 12, 2021. REUTERS/Mayela Lopez

A Costa Rican health care worker administers a vaccine dose to a Haitian migrant as part of a vaccination campaign against the coronavirus disease (COVID-19) targeting migrants regardless of their legal status, in San Jose, Costa Rica October 12, 2021. REUTERS/Mayela Lopez

Italy's Prime Minister Mario Draghi attends a joint news conference with Italy's Economy Minister Daniele Franco (not pictured) on the government's new fiscal targets in Rome, Italy, September 29, 2021. REUTERS/Yara Nardi

Italy's Economy Minister Daniele Franco speaks during a joint news conference with Italy's Prime Minister Mario Draghi (not pictured) on the government's new fiscal targets in Rome, Italy, September 29, 2021. REUTERS/Yara Nardi

Italy's Prime Minister Mario Draghi speaks during a joint news conference with Italy's Economy Minister Daniele Franco (not pictured) on the government's new fiscal targets in Rome, Italy, September 29, 2021. REUTERS/Yara Nardi

Italy's Prime Minister Mario Draghi holds a joint news conference with Italy's Economy Minister Daniele Franco (not pictured) on the government's new fiscal targets in Rome, Italy, September 29, 2021. REUTERS/Yara Nardi

Italy's Economy Minister Daniele Franco speaks during a joint news conference with Italy's Prime Minister Mario Draghi (not pictured) on the government's new fiscal targets in Rome, Italy, September 29, 2021. REUTERS/Yara Nardi

Italy's Economy Minister Daniele Franco holds the Documento di Economia e Finanza (Economic and Financial Document) as he speaks during a joint news conference with Italy's Prime Minister Mario Draghi (not pictured) on the government's new fiscal targets in Rome, Italy, September 29, 2021. REUTERS/Yara Nardi

Italy's Prime Minister Mario Draghi holds a joint news conference with Italy's Economy Minister Daniele Franco (not pictured) on the government's new fiscal targets in Rome, Italy, September 29, 2021. REUTERS/Yara Nardi

Italy's Prime Minister Mario Draghi listens as Italy's Economy Minister Daniele Franco speaks during a joint news conference on the government's new fiscal targets in Rome, Italy, September 29, 2021. REUTERS/Yara Nardi

Italy's Economy Minister Daniele Franco speaks during a joint news conference with Italy's Prime Minister Mario Draghi (not pictured) on the government's new fiscal targets in Rome, Italy, September 29, 2021. REUTERS/Yara Nardi

Italy's Prime Minister Mario Draghi holds a joint news conference with Italy's Economy Minister Daniele Franco (not pictured) on the government's new fiscal targets in Rome, Italy, September 29, 2021. REUTERS/Yara Nardi

Italy's Prime Minister Mario Draghi holds a joint news conference with Italy's Economy Minister Daniele Franco on the government's new fiscal targets in Rome, Italy, September 29, 2021. REUTERS/Yara Nardi

Italy's Prime Minister, Mario Draghi speaks during a joint news conference with Italy's Economy Minister Daniele Franco (not pictured) on the government's new fiscal targets in Rome, Italy, September 29, 2021. REUTERS/Yara Nardi

Italy's Prime Minister, Mario Draghi speaks during a joint news conference with Italy's Economy Minister Daniele Franco (not pictured) on the government's new fiscal targets in Rome, Italy, September 29, 2021. REUTERS/Yara Nardi

A view of minarets and houses from top of the nearly 1,000-year-old gate of Bab al-Zuweila, in Historic Cairo targeted for restoration, in Cairo, Egypt September 14, 2021. Picture taken September 14, 2021. REUTERS/Amr Abdallah Dalsh

A view of the Wikalat Nafisa al-Bayda, a caravanserai targeted for restoration in the old Islamic Cairo, Egypt September 14, 2021. Picture taken September 14, 2021. REUTERS/Amr Abdallah Dalsh

A view of minarets and houses from top of the nearly 1,000-year-old gate of Bab al-Zuweila, in Historic Cairo targeted for restoration, in Cairo, Egypt September 14, 2021. Picture taken September 14, 2021. REUTERS/Amr Abdallah Dalsh

People walk next to the public drinking fountain of al-Nafisa Bayda, outside a caravanserai in Historic Cairo targeted for restoration, in Cairo, Egypt September 14, 2021. Picture taken September 14, 2021. REUTERS/Amr Abdallah Dalsh

A member of a stokvel counts banknotes contributed during one of their gatherings in Vanderbijlpark, in the south of Johannesburg, South Africa, September 11, 2021. Picture taken September 11, 2021. REUTERS/Siphiwe Sibeko

Thandi Mkhabela, chairperson of a stokvel, gestures in front of banknotes contributed by members, during one of their gatherings in Vanderbijlpark, in the south of Johannesburg, South Africa, September 11, 2021. Hers is one of hundreds of thousands of stokvels, or savings clubs, that make up a largely informal market worth some $3 billion annually, according to the National Stokvel Association of South Africa (NASASA). Picture taken September 11, 2021. REUTERS/Siphiwe Sibeko

A member of a stokvel counts banknotes before making her contribution during one of their gatherings in Vanderbijlpark, in the south of Johannesburg, South Africa, September 11, 2021. Picture taken September 11, 2021. REUTERS/Siphiwe Sibeko

A member of a stokvel gestures while making a point during one of their gatherings in Vanderbijlpark, in the south of Johannesburg, South Africa, September 11, 2021. Picture taken September 11, 2021. REUTERS/Siphiwe Sibeko

Banknotes are placed on the table after contributions from members of a stokvel during one of their gatherings in Vanderbijlpark, in the south of Johannesburg, South Africa, September 11, 2021. Picture taken September 11, 2021. REUTERS/Siphiwe Sibeko

Sophie Maruping, a member of a stokvel, raises her hand to raise a point while Jane Monyela and Thandi Mkhabela count banknotes contributed during one of their gatherings in Vanderbijlpark, in the south of Johannesburg, South Africa, September 11, 2021. Picture taken September 11, 2021. REUTERS/Siphiwe Sibeko

Tokyo 2020 Paralympic Games - Archery - Men's Individual Compound - Open 1/16 Elimination - Yumenoshima Archery Field, Tokyo, Japan - August 28, 2021. An arrow hits the target. REUTERS/Lisi Niesner

Rising prices have economists debating whether trouble is brewing, but a lot can be explained by the pandemic. Embed version of the Fed's 2% target graphic

Police officers and members of the Crime Scene Investigation Unit survey the site and collect evidence after several people were killed when an open truck was targeted in a grenade attack, according to police, in Karachi, Pakistan August 15, 2021. REUTERS/Akhtar Soomro

Footwear belonging to victims are seen as members of the Crime Scene Investigation Unit collect evidence after several people were killed when an open truck was targeted in a grenade attack, according to police, in Karachi, Pakistan August 15, 2021. REUTERS/Akhtar Soomro

A man mourns the death of relatives who were killed after, according to the police, an open truck targeted in a grenade attack, killing ten family members, at a hospital in Karachi, Pakistan August 15, 2021. REUTERS/Akhtar Soomro

A man comforts another while mourning the death of relatives who were killed after, according to the police, an open truck targeted in a grenade attack, killing ten family members, at a hospital in Karachi, Pakistan August 15, 2021. REUTERS/Akhtar Soomro

Volunteers take down the archery arrow target posters and cover up the target boards as the Olympic archery draws to a close after nine days of games at Yumenoshima Archery Field, during the Tokyo 2020 Olympic Games in Tokyo, Japan, July 31, 2021. REUTERS/Clodagh Kilcoyne

Volunteers take down the archery arrow target posters and cover up the target boards as the Olympic archery draws to a close after nine days of games at Yumenoshima Archery Field, during the Tokyo 2020 Olympic Games in Tokyo, Japan, July 31, 2021. REUTERS/Clodagh Kilcoyne

Volunteers take down the archery arrow target posters and cover up the target boards as the Olympic archery draws to a close after nine days of games at Yumenoshima Archery Field, during the Tokyo 2020 Olympic Games in Tokyo, Japan, July 31, 2021. REUTERS/Clodagh Kilcoyne

Volunteers take down the archery arrow target posters and cover up the target boards as the Olympic archery draws to a close after nine days of games at Yumenoshima Archery Field, during the Tokyo 2020 Olympic Games in Tokyo, Japan, July 31, 2021. REUTERS/Clodagh Kilcoyne

Volunteers take down the archery arrow target posters and cover up the target boards as the Olympic archery draws to a close after nine days of games at Yumenoshima Archery Field, during the Tokyo 2020 Olympic Games in Tokyo, Japan, July 31, 2021. REUTERS/Clodagh Kilcoyne

Volunteers take down the archery arrow target posters and cover up the target boards as the Olympic archery draws to a close after nine days of games at Yumenoshima Archery Field, during the Tokyo 2020 Olympic Games in Tokyo, Japan, July 31, 2021. REUTERS/Clodagh Kilcoyne

Volunteers take down the archery arrow target posters and cover up the target boards as the Olympic archery draws to a close after nine days of games at Yumenoshima Archery Field, during the Tokyo 2020 Olympic Games in Tokyo, Japan, July 31, 2021. REUTERS/Clodagh Kilcoyne

Volunteers take down the archery arrow target posters and cover up the target boards as the Olympic archery draws to a close after nine days of games at Yumenoshima Archery Field, during the Tokyo 2020 Olympic Games in Tokyo, Japan, July 31, 2021. REUTERS/Clodagh Kilcoyne

Volunteers take down the archery arrow target posters and cover up the target boards as the Olympic archery draws to a close after nine days of games at Yumenoshima Archery Field, during the Tokyo 2020 Olympic Games in Tokyo, Japan, July 31, 2021. REUTERS/Clodagh Kilcoyne

Volunteers take down the archery arrow target posters and cover up the target boards as the Olympic archery draws to a close after nine days of games at Yumenoshima Archery Field, during the Tokyo 2020 Olympic Games in Tokyo, Japan, July 31, 2021. REUTERS/Clodagh Kilcoyne

Volunteers take down the archery arrow target posters and cover up the target boards as the Olympic archery draws to a close after nine days of games at Yumenoshima Archery Field, during the Tokyo 2020 Olympic Games in Tokyo, Japan, July 31, 2021. REUTERS/Clodagh Kilcoyne

Volunteers take down the archery arrow target posters and cover up the target boards as the Olympic archery draws to a close after nine days of games at Yumenoshima Archery Field, during the Tokyo 2020 Olympic Games in Tokyo, Japan, July 31, 2021. REUTERS/Clodagh Kilcoyne

Volunteers take down the archery arrow target posters and cover up the target boards as the Olympic archery draws to a close after nine days of games at Yumenoshima Archery Field, during the Tokyo 2020 Olympic Games in Tokyo, Japan, July 31, 2021. REUTERS/Clodagh Kilcoyne

Volunteers take down the archery arrow target posters and cover up the target boards as the Olympic archery draws to a close after nine days of games at Yumenoshima Archery Field, during the Tokyo 2020 Olympic Games in Tokyo, Japan, July 31, 2021. REUTERS/Clodagh Kilcoyne

Volunteers take down the archery arrow target posters and cover up the target boards as the Olympic archery draws to a close after nine days of games at Yumenoshima Archery Field, during the Tokyo 2020 Olympic Games in Tokyo, Japan, July 31, 2021. REUTERS/Clodagh Kilcoyne

Volunteers take down the archery arrow target posters and cover up the target boards as the Olympic archery draws to a close after nine days of games at Yumenoshima Archery Field, during the Tokyo 2020 Olympic Games in Tokyo, Japan, July 31, 2021. REUTERS/Clodagh Kilcoyne