As often as is medically recommended based on your age, where you live, what you do, and where you go. Some vaccines are recommended for babies everywhere, others are boosters of those same vaccines later in life, some or are recommended for specific jobs (such as working in a hospital), and others if you travel to exotic countries. To know which vaccines you or your child should get you should consult a health care professional.
Every year, a horse should be getting a tetanus vaccination.
The current recommendation is to receive a tetanus shot every ten years.
How often should you change the fuel filter?
To obtain a duplicate yellow fever vaccination card, you should first contact the health facility or clinic where you received the vaccination, as they often keep records of immunizations. If that facility is not accessible, you can reach out to your country's health department or the local health authority for guidance. They may require identification and information about your vaccination to issue a replacement. Additionally, some countries may have specific online portals or forms for requesting duplicate vaccination cards.
Lodestone
as often as needed
You should change your oil every 3,000 miles. If you drive your car rough, then you should change it more often.
The ball band on yarn often tells you what size needles it is suitable for.
everyday
Purpose: You should change the needle depending on the project/fabric you are sewing. For example, sewing with silk requires very small needles (such as 60/8), but sewing with denim requires much heavier needles 110/18). See the needle chart in "Related Links" for more information. Wear and tear: A sewing needle should be replaced any time it bends or breaks. If this hasn't occured, you sew often, and you haven't changed the needle, perhaps it's good to change the needle once a year or so (since it may dull with frequent use).
How often should you change water pump in a boat
You should change them after every feeding because they should be washed after every feeding.