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There are four types of COVID-19 vaccines part 6

How do whole virus vaccines trigger immunity? Both live attenuated and inactivated vaccines contain the whole or part of the disease-causing pathogen, but the type of immunity they trigger is slightly different. Live attenuated vaccines are derived from viruses that … Continue reading

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There are four types of COVID-19 vaccines part 5

Advantages and disadvantages of inactivated virus vaccines : Well-established technology Suitable for people with compromised immune systems No live components, so no risk of the vaccine triggering disease Relatively simple to manufacture Relatively stable Booster shots may be required

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There are four types of COVID-19 vaccines part 4

Advantages and disadvantages of live attenuated vacciness: Well established technology Strong immune response Immune response involves B cells and T cells Relatively simple to manufacture Unsuitable for people with compromised immune systems May trigger disease in very rare cases Relatively … Continue reading

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There are four types of COVID-19 vaccines part 3

What are whole virus vaccines and how could they be used against COVID-19? Whole virus vaccines use a weakened (attenuated) or deactivated form of the pathogen that causes a disease to trigger protective immunity to it. There are two types … Continue reading

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There are four types of COVID-19 vaccines part 2

The four main types of COVID-19 vaccine There are four categories of vaccines in clinical trials:  Whole virus Protein subunit Viral vector Nucleic acid (RNA and DNA) Some of them try to smuggle the antigen into the body, other use … Continue reading

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There are four types of COVID-19 vaccines part 1

There are more vaccine candidates simultaneously in the pipeline for COVID-19 than ever before for an infectious disease. All of them are trying to achieve the same thing – immunity to the virus, and some might also be able to … Continue reading

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COVID-19 vaccine development part 22

How to protect ourselves and others: Stay home and self-isolate Clean hands frequently  Cover your mouth and nose Avoid touching Maintain a minimum physical distance of at least 1 metre from other Stay away from crowd Use a medical mask … Continue reading

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COVID-19 vaccine development part 21

Resources on COVID-19 vaccines development: WHO target product profile for COVID-19 vaccine Vaccine landscape Solidarity vaccine trial Access to COVID tools (ACT) Accelerator COVAX facility (WHO) Covax explained (GAVI) COPVAX (CEPI) WHO guidance on ethnics of vaccine allocation

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COVID-19 vaccine development part 20

Working together to deliver vaccine to all countries: The Access to Covid-19 Tools (ACT) Accelerator was launched in April 2020 to speed up development and delivery to countries of diagnostics, treatments and vaccines. It includes a health systems connector to … Continue reading

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COVID-19 vaccine development part 19

WHO Solidarity vaccine trial (Achieving rapid progress towards global objectives) : Evaluating several different candidate vaccines:       Increasing the likelihood of finding several effective vaccines Expenditiously enrolling people at sites with high rates of COVID-19:       … Continue reading

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