Print Email. A sinkhole, also known as a sink-hole, sink, swallow hole, shakehole, swallet or doline, is a natural depression or hole in the Earth's surface which may have various causes. Some are caused by karst processesâfor example, the chemical dissolution of carbonate rocks or suffosion processes in sandstone.
MMR vaccine is recommended routinely for all children at age 12 through 15 months, with a second dose at age 4 through 6 years. The second dose of MMR can be given as early as 4 weeks (28 days) after the first dose and be counted as a valid dose if both doses were given after the child's first birthday.easles vaccine, given as MMR, may be effective if given within the first 3 days (72 hours) after exposure to measles. Immune globulin may be effective for as long as 6 days after exposure.
In many provinces, the chickenpox vaccine is combined with the MMR vaccine (the combination vaccine is called MMR-V). If your child is between 6 and 12 months old and you live or are travelling to an area that has a known measles outbreak, talk to your childâs doctor about getting an early dose of the MMR vaccine.Keep in mind that your baby will still need to get her regular MMR shot when she is 12 months old.n many provinces, the chickenpox vaccine is combined with the MMR vaccine (the combination vaccine is called MMR-V). If your child is between 6 and 12 months old and you live or are travelling to an area that has a known measles outbreak, talk to your childâs doctor about getting an early dose of the MMR vaccine.